69 Commits

Author	SHA1	Message	Date
Michael Bestas	9aff51ad3a	Merge tag 'v4.19.325-cip123' of https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip into android13-4.19-kona ... version 4.19.325-cip123 * tag 'v4.19.325-cip123' of https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip: CIP: Bump version suffix to -cip123 after merge from cip/linux-4.19.y-st tree Update localversion-st, tree is up-to-date with 5.4.296. emulex/benet: Fix build by return mismatch in be_cmd_unlock() net/sched: Abort __tc_modify_qdisc if parent class does not exist mtk-sd: Prevent memory corruption from DMA map failure mmc: mediatek: use data instead of mrq parameter from msdc_{un}prepare_data() scsi: qla4xxx: Fix missing DMA mapping error in qla4xxx_alloc_pdu() btrfs: don't abort filesystem when attempting to snapshot deleted subvolume VMCI: fix race between vmci_host_setup_notify and vmci_ctx_unset_notify net: ipv6: Discard next-hop MTU less than minimum link MTU Input: atkbd - do not skip atkbd_deactivate() when skipping ATKBD_CMD_GETID HID: quirks: Add quirk for 2 Chicony Electronics HP 5MP Cameras HID: Add IGNORE quirk for SMARTLINKTECHNOLOGY vt: add missing notification when switching back to text mode net: usb: qmi_wwan: add SIMCom 8230C composition atm: idt77252: Add missing `dma_map_error()` bnxt_en: Fix DCB ETS validation can: m_can: m_can_handle_lost_msg(): downgrade msg lost in rx message to debug level net: appletalk: Fix device refcount leak in atrtr_create() md/raid1: Fix stack memory use after return in raid1_reshape wifi: zd1211rw: Fix potential NULL pointer dereference in zd_mac_tx_to_dev() dma-buf: fix timeout handling in dma_resv_wait_timeout v2 Input: xpad - support Acer NGR 200 Controller Input: xpad - add VID for Turtle Beach controllers Input: xpad - add support for Amazon Game Controller netlink: Fix rmem check in netlink_broadcast_deliver(). netlink: make sure we allow at least one dump skb Revert "ACPI: battery: negate current when discharging" usb: gadget: u_serial: Fix race condition in TTY wakeup drm/sched: Increment job count before swapping tail spsc queue x86/mce: Make sure CMCI banks are cleared during shutdown on Intel x86/mce: Don't remove sysfs if thresholding sysfs init fails x86/mce/amd: Fix threshold limit reset rxrpc: Fix oops due to non-existence of prealloc backlog struct atm: clip: Fix NULL pointer dereference in vcc_sendmsg() atm: clip: Fix infinite recursive call of clip_push(). atm: clip: Fix memory leak of struct clip_vcc. atm: clip: Fix potential null-ptr-deref in to_atmarpd(). tipc: Fix use-after-free in tipc_conn_close(). netlink: Fix wraparounds of sk->sk_rmem_alloc. fix proc_sys_compare() handling of in-lookup dentries proc: Clear the pieces of proc_inode that proc_evict_inode cares about staging: rtl8723bs: Avoid memset() in aes_cipher() and aes_decipher() media: uvcvideo: Rollback non processed entities on error media: uvcvideo: Send control events for partial succeeds media: uvcvideo: Return the number of processed controls ACPI: PAD: fix crash in exit_round_robin() usb: typec: displayport: Fix potential deadlock Logitech C-270 even more broken rose: fix dangling neighbour pointers in rose_rt_device_down() net: rose: Fix fall-through warnings for Clang ethernet: atl1: Add missing DMA mapping error checks and count errors btrfs: use btrfs_record_snapshot_destroy() during rmdir btrfs: propagate last_unlink_trans earlier when doing a rmdir RDMA/mlx5: Fix CC counters query for MPV scsi: ufs: core: Fix spelling of a sysfs attribute name ACPICA: Refuse to evaluate a method if arguments are missing wifi: ath6kl: remove WARN on bad firmware input wifi: mac80211: drop invalid source address OCB frames powerpc: Fix struct termio related ioctl macros ata: pata_cs5536: fix build on 32-bit UML ALSA: sb: Force to disable DMAs once when DMA mode is changed net/sched: Always pass notifications when child class becomes empty nui: Fix dma_mapping_error() check enic: fix incorrect MTU comparison in enic_change_mtu() amd-xgbe: align CL37 AN sequence as per databook btrfs: fix missing error handling when searching for inode refs during log replay mtk-sd: Fix a pagefault in dma_unmap_sg() for not prepared data usb: typec: altmodes/displayport: do not index invalid pin_assignments Revert "mmc: sdhci: Disable SD card clock before changing parameters" mmc: sdhci: Add a helper function for dump register in dynamic debug mode vsock/vmci: Clear the vmci transport packet properly when initializing it arm64: Restrict pagetable teardown to avoid false warning drm/bridge: cdns-dsi: Fix connecting to next bridge drm/tegra: Assign plane type before registration HID: wacom: fix kobject reference count leak HID: wacom: fix memory leak on sysfs attribute creation failure HID: wacom: fix memory leak on kobject creation failure dm-raid: fix variable in journal device check Bluetooth: L2CAP: Fix L2CAP MTU negotiation atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister(). um: ubd: Add missing error check in start_io_thread() vsock/uapi: fix linux/vm_sockets.h userspace compilation errors wifi: mac80211: fix beacon interval calculation overflow ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() i2c: robotfuzz-osif: disable zero-length read messages i2c: tiny-usb: disable zero-length read messages RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction RDMA/core: Use refcount_t instead of atomic_t on refcount of iwcm_id_private media: vivid: Change the siize of the composing media: omap3isp: use sgtable-based scatterlist wrappers jfs: validate AG parameters in dbMount() to prevent crashes fs/jfs: consolidate sanity checking in dbMount VMCI: check context->notify_page after call to get_user_pages_fast() to avoid GPF ovl: Check for NULL d_inode() in ovl_dentry_upper() ceph: fix possible integer overflow in ceph_zero_objects() ALSA: hda: Ignore unsol events for cards being shut down usb: typec: displayport: Receive DP Status Update NAK request exit dp altmode usb: cdc-wdm: avoid setting WDM_READ for ZLP-s usb: Add checks for snprintf() calls in usb_alloc_dev() usb: potential integer overflow in usbg_make_tpg() iio: pressure: zpa2326: Use aligned_s64 for the timestamp md/md-bitmap: fix dm-raid max_write_behind setting dmaengine: xilinx_dma: Set dma_device directions mfd: max14577: Fix wakeup source leaks on device unbind mailbox: Not protect module_put with spin_lock_irqsave cifs: Fix cifs_query_path_info() for Windows NT servers CIP: Bump version suffix to -cip122 after merge from cip/linux-4.19.y-st tree Update localversion-st, tree is up-to-date with 5.4.295. ARM: dts: am335x-bone-common: Increase MDIO reset deassert delay to 50ms ARM: dts: am335x-bone-common: Increase MDIO reset deassert time ARM: dts: am335x-bone-common: Add GPIO PHY reset on revision C3 board ARM: dts: am335x-bone-common: get rid of phy_id property mtd: nand: sunxi: Add randomizer configuration before randomizer enable mtd: rawnand: sunxi: Add randomizer configuration in sunxi_nfc_hw_ecc_write_chunk sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() bridge: netfilter: Fix forwarding of fragmented packets vxlan: Annotate FDB data races hwmon: (gpio-fan) Add missing mutex locks nfs: handle failure of nfs_get_lock_context in unlock path sch_htb: make htb_deactivate() idempotent scsi: qedf: Use designated initializer for struct qed_fcoe_cb_ops arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth() perf: Fix sample vs do_exit() jbd2: fix data-race and null-ptr-deref in jbd2_journal_dirty_metadata() mm/huge_memory: fix dereferencing invalid pmd migration entry posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() net: atm: fix /proc/net/atm/lec handling net: atm: add lec_mutex calipso: Fix null-ptr-deref in calipso_req_{set,del}attr(). tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer atm: atmtcp: Free invalid length skb in atmtcp_c_send(). mpls: Use rcu_dereference_rtnl() in mpls_route_input_rcu(). wifi: carl9170: do not ping device which has failed to load firmware drm/nouveau/bl: increase buffer size to avoid truncate warning ALSA: hda/realtek: enable headset mic on Latitude 5420 Rugged ALSA: hda/intel: Add Thinkpad E15 to PM deny list Input: sparcspkr - avoid unannotated fall-through HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse() atm: Revert atm_account_tx() if copy_from_iter_full() fails. selinux: fix selinux_xfrm_alloc_user() to set correct ctx_len scsi: s390: zfcp: Ensure synchronous unit_add jffs2: check jffs2_prealloc_raw_node_refs() result in few other places jffs2: check that raw node were preallocated before writing summary drivers/rapidio/rio_cm.c: prevent possible heap overwrite Revert "x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2" on v6.6 and older powerpc/eeh: Fix missing PE bridge reconfiguration during VFIO EEH recovery platform/x86: dell_rbu: Stop overwriting data buffer tee: Prevent size calculation wraparound on 32-bit kernels ARM: OMAP2+: Fix l4ls clk domain handling in STANDBY bus: fsl-mc: increase MC_CMD_COMPLETION_TIMEOUT_MS value watchdog: da9052_wdt: respect TWDMIN i40e: fix MMIO write access to an invalid page in i40e_clear_hw sock: Correct error checking condition for (assign|release)_proto_idx() vxlan: Do not treat dst cache initialization errors as fatal clk: rockchip: rk3036: mark ddrphy as critical wifi: mac80211: do not offer a mesh path if forwarding is disabled net: mlx4: add SOF_TIMESTAMPING_TX_SOFTWARE flag when getting ts info pinctrl: armada-37xx: propagate error from armada_37xx_gpio_get() pinctrl: armada-37xx: propagate error from armada_37xx_pmx_gpio_set_direction() pinctrl: armada-37xx: propagate error from armada_37xx_gpio_get_direction() pinctrl: armada-37xx: propagate error from armada_37xx_pmx_set_by_name() ipv4/route: Use this_cpu_inc() for stats on PREEMPT_RT tcp: always seek for minimal rtt in tcp_rcv_rtt_update() net: dlink: add synchronization for stats update sctp: Do not wake readers in __sctp_write_space() emulex/benet: correct command version selection in be_cmd_get_stats() i2c: designware: Invoke runtime suspend on quick slave re-registration net: macb: Check return value of dma_set_mask_and_coherent() cpufreq: Force sync policy boost with global boost on sysfs update nios2: force update_mmu_cache on spurious tlb-permission--related pagefaults media: platform: exynos4-is: Add hardware sync wait to fimc_is_hw_change_mode() media: tc358743: ignore video while HPD is low drm/amdkfd: Set SDMA_RLCx_IB_CNTL/SWITCH_INSIDE_IB jfs: Fix null-ptr-deref in jfs_ioc_trim drm/amdgpu/gfx9: fix CSIB handling drm/amdgpu/gfx8: fix CSIB handling jfs: fix array-index-out-of-bounds read in add_missing_indices drm/amdgpu/gfx7: fix CSIB handling drm/amd/display: Add NULL pointer checks in dm_force_atomic_commit() media: uapi: v4l: Fix V4L2_TYPE_IS_OUTPUT condition sunrpc: update nextcheck time when adding new cache entries drm/amdgpu/gfx6: fix CSIB handling ACPI: battery: negate current when discharging power: supply: bq27xxx: Retrieve again when busy ACPICA: fix acpi parse and parseext cache leaks ACPICA: Avoid sequence overread in call to strncmp() ACPICA: fix acpi operand cache leak in dswstate.c PCI: Fix lock symmetry in pci_slot_unlock() regulator: max14577: Add error check for max14577_read_reg() staging: iio: ad5933: Correct settling cycles encoding per datasheet net: ch9200: fix uninitialised access during mii_nway_restart ftrace: Fix UAF when lookup kallsym after ftrace disabled dm-mirror: fix a tiny race condition mm: fix ratelimit_pages update error in dirty_ratio_handler() ipc: fix to protect IPCS lookups using RCU parisc: fix building with gcc-15 vgacon: Add check for vc_origin address range in vgacon_scroll() NFC: nci: uart: Set tty->disc_data only in success path f2fs: prevent kernel warning due to negative i_nlink from corrupted image Input: ims-pcu - check record size in ims_pcu_flash_firmware() ext4: fix calculation of credits for extent tree modification ext4: inline: fix len overflow in ext4_prepare_inline_data ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330 media: v4l2-dev: fix error handling in __video_register_device() media: gspca: Add error handling for stv06xx_read_sensor() wifi: rtlwifi: disable ASPM for RTL8723BE with subsystem ID 11ad:1723 nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request wifi: p54: prevent buffer-overflow in p54_rx_eeprom_readback() gfs2: move msleep to sleepable context configfs: Do not override creating attribute file failure in populate_attrs() calipso: unlock rcu before returning -EAFNOSUPPORT usb: Flush altsetting 0 endpoints before reinitializating them after reset. fs/filesystems: Fix potential unsigned integer underflow in fs_name() net/mdiobus: Fix potential out-of-bounds read/write access MIPS: Move '-Wa,-msoft-float' check from as-option to cc-option x86/boot/compressed: prefer cc-option for CFLAGS additions net: mdio: C22 is now optional, EOPNOTSUPP if not provided i40e: retry VFLR handling if there is ongoing VF reset i40e: return false from i40e_reset_vf if reset is in progress net_sched: sch_sfq: fix a potential crash on gso_skb handling scsi: iscsi: Fix incorrect error path labels for flashnode operations NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes NFSD: Fix ia_size underflow Input: synaptics-rmi - fix crash with unsupported versions of F34 Input: synaptics-rmi4 - convert to use sysfs_emit() APIs do_change_type(): refuse to operate on unmounted/not ours mounts net/mlx4_en: Prevent potential integer overflow calculating Hz rtc: Fix offset calculation for .start_secs < 0 rtc: sh: assign correct interrupts with DT perf tests switch-tracking: Fix timestamp comparison mfd: stmpe-spi: Correct the name used in MODULE_DEVICE_TABLE mfd: exynos-lpass: Avoid calling exynos_lpass_disable() twice in exynos_lpass_remove() rpmsg: qcom_smd: Fix uninitialized return variable in __qcom_smd_send() perf ui browser hists: Set actions->thread before calling do_zoom_thread() fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod() soc: aspeed: Add NULL check in aspeed_lpc_enable_snoop() soc: aspeed: lpc: Fix impossible judgment condition arm64: dts: rockchip: disable unrouted USB controllers and PHY on RK3399 Puma with Haikou ARM: dts: qcom: apq8064 merge hw splinlock into corresponding syscon device bus: fsl-mc: fix double-free on mc_dev nilfs2: do not propagate ENOENT error from nilfs_btree_propagate() nilfs2: add pointer check for nilfs_direct_propagate() Squashfs: check return result of sb_min_blocksize ARM: dts: at91: at91sam9263: fix NAND chip selects ARM: dts: at91: usb_a9263: fix GPIO for Dataflash chip select f2fs: fix to correct check conditions in f2fs_cross_rename f2fs: use d_inode(dentry) cleanup dentry->d_inode calipso: Don't call calipso functions for AF_INET sk. net: lan743x: rename lan743x_reset_phy to lan743x_hw_reset_phy wifi: ath9k_htc: Abort software beacon handling if disabled bpf: Fix WARN() in get_bpf_raw_tp_regs pinctrl: at91: Fix possible out-of-boundary access net: ncsi: Fix GCPS 64-bit member variables f2fs: fix to do sanity check on sbi->total_valid_block_count drm/tegra: rgb: Fix the unbound reference count drm: rcar-du: Fix memory leak in rcar_du_vsps_init() selftests/seccomp: fix syscall_restart test for arm compat firmware: psci: Fix refcount leak in psci_dt_init m68k: mac: Fix macintosh_config for Mac II drm/vmwgfx: Add seqno waiter for sync_files ACPI: OSI: Stop advertising support for "3.0 _SCP Extensions" x86/mtrr: Check if fixed-range MTRRs exist in mtrr_save_fixed_ranges() crypto: marvell/cesa - Avoid empty transfer descriptor crypto: marvell/cesa - Handle zero-length skcipher requests x86/cpu: Sanitize CPUID(0x80000000) output perf/core: Fix broken throttling when max_samples_per_tick=1 gfs2: gfs2_create_inode error handling fix netfilter: nft_socket: fix sk refcount leaks thunderbolt: Do not double dequeue a configuration request usb: usbtmc: Fix timeout value in get_stb usb: storage: Ignore UAS driver for SanDisk 3.2 Gen2 storage device usb: quirks: Add NO_LPM quirk for SanDisk Extreme 55AE pinctrl: armada-37xx: set GPIO output value before setting direction pinctrl: armada-37xx: use correct OUTPUT_VAL register for GPIOs > 31 tracing: Fix compilation warning on arm32 platform/x86: thinkpad_acpi: Ignore battery threshold change event notification platform/x86: fujitsu-laptop: Support Lifebook S2110 hotkeys spi: spi-sun4i: fix early activation um: let 'make clean' properly clean underlying SUBARCH as well platform/x86: thinkpad_acpi: Support also NEC Lavie X1475JAS nfs: don't share pNFS DS connections between net namespaces HID: quirks: Add ADATA XPG alpha wireless mouse support coredump: fix error handling for replace_fd() smb: client: Reset all search buffer pointers when releasing buffer smb: client: Fix use-after-free in cifs_fill_dirent drm/i915/gvt: fix unterminated-string-initialization warning netfilter: nf_tables: do not defer rule destruction via call_rcu netfilter: nf_tables: wait for rcu grace period on net_device removal netfilter: nf_tables: pass nft_chain to destroy function, not nft_ctx mm/page_alloc.c: avoid infinite retries caused by cpuset race llc: fix data loss when reading from a socket in llc_ui_recvmsg() ALSA: pcm: Fix race of buffer access at PCM OSS layer can: bcm: add missing rcu read protection for procfs content can: bcm: add locking for bcm_op runtime updates crypto: algif_hash - fix double free in hash_accept net: dwmac-sun8i: Use parsed internal PHY address instead of 1 __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock xenbus: Allow PVH dom0 a non-local xenstore btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref ASoC: Intel: bytcr_rt5640: Add DMI quirk for Acer Aspire SW3-013 pinctrl: meson: define the pull up/down resistor value as 60 kOhm drm: Add valid clones check regulator: ad5398: Add device tree support bpftool: Fix readlink usage in get_fd_type HID: usbkbd: Fix the bit shift number for LED_KANA scsi: st: Restore some drive settings after reset scsi: lpfc: Handle duplicate D_IDs in ndlp search-by D_ID routine hwmon: (xgene-hwmon) use appropriate type for the latency value ip: fib_rules: Fetch net from fib_rule in fib[46]_rule_configure(). net/mlx5: Extend Ethtool loopback selftest to support non-linear SKB net/mlx4_core: Avoid impossible mlx4_db_alloc() order value smack: recognize ipv4 CIPSO w/o categories pinctrl: devicetree: do not goto err when probing hogs in pinctrl_dt_to_map ASoC: ops: Enforce platform maximum on initial value ACPI: HED: Always initialize before evged PCI: Fix old_size lower bound in calculate_iosize() too EDAC/ie31200: work around false positive build warning net: pktgen: fix access outside of user given buffer in pktgen_thread_write() MIPS: pm-cps: Use per-CPU variables as per-CPU, not per-core MIPS: Use arch specific syscall name match function cpuidle: menu: Avoid discarding useful information x86/nmi: Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus() bonding: report duplicate MAC address in all situations net: xgene-v2: remove incorrect ACPI_PTR annotation x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2 net: pktgen: fix mpls maximum labels list parsing pinctrl: bcm281xx: Use "unsigned int" instead of bare "unsigned" media: cx231xx: set device_caps for 417 dm cache: prevent BUG_ON by blocking retries on failed device resumes media: c8sectpfe: Call of_node_put(i2c_bus) only once in c8sectpfe_probe() ARM: tegra: Switch DSI-B clock parent to PLLD on Tegra114 ieee802154: ca8210: Use proper setters and getters for bitwise types rtc: ds1307: stop disabling alarms on probe powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7 mmc: sdhci: Disable SD card clock before changing parameters posix-timers: Add cond_resched() to posix_timer_add() search loop xen: Add support for XenServer 6.1 platform device dm: restrict dm device size to 2^63-512 bytes kbuild: fix argument parsing in scripts/config scsi: st: ERASE does not change tape location scsi: st: Tighten the page format heuristics with MODE SELECT ext4: reorder capability check last um: Update min_low_pfn to match changes in uml_reserved um: Store full CSGSFS and SS register from mcontext btrfs: send: return -ENAMETOOLONG when attempting a path that is too long btrfs: avoid linker error in btrfs_find_create_tree_block() i2c: pxa: fix call balance of i2c->clk handling routines mmc: host: Wait for Vdd to settle on card power off pNFS/flexfiles: Report ENETDOWN as a connection error tools/build: Don't pass test log files to linker dql: Fix dql->limit value when reset. SUNRPC: rpc_clnt_set_transport() must not change the autobind setting NFSv4: Treat ENETUNREACH errors as fatal for state recovery fbdev: core: tileblit: Implement missing margin clearing for tileblit fbdev: fsl-diu-fb: add missing device_remove_file() mailbox: use error ret code of of_parse_phandle_with_args() kconfig: merge_config: use an empty file as initfile cgroup: Fix compilation issue due to cgroup_mutex not being exported dma-mapping: avoid potential unused data compilation warning scsi: target: iscsi: Fix timeout on deleted connection openvswitch: Fix unsafe attribute parsing in output_userspace() Input: synaptics - enable InterTouch on TUXEDO InfinityBook Pro 14 v5 Input: synaptics - enable SMBus for HP Elitebook 850 G1 phy: Fix error handling in tegra_xusb_port_init ALSA: es1968: Add error handling for snd_pcm_hw_constraint_pow2() ACPI: PPTT: Fix processor subtable walk qlcnic: fix memory leak in qlcnic_sriov_channel_cfg_cmd() ALSA: sh: SND_AICA should depend on SH_DMA_API spi: loopback-test: Do not split 1024-byte hexdumps RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug staging: axis-fifo: Correct handling of tx_fifo_depth for size validation staging: axis-fifo: avoid parsing ignored device tree properties platform/x86: asus-wmi: Fix wlan_ctrl_by_user detection do_umount(): add missing barrier before refcount checks in sync case MIPS: Fix MAX_REG_OFFSET iio: adc: dln2: Use aligned_s64 for timestamp types: Complement the aligned types with signed 64-bit one USB: usbtmc: use interruptible sleep in usbtmc_read usb: typec: tcpm: delay SNK_TRY_WAIT_DEBOUNCE to SRC_TRYWAIT transition ocfs2: stop quota recovery before disabling quotas ocfs2: implement handshaking with ocfs2 recovery thread ocfs2: switch osb->disable_recovery to enum module: ensure that kobject_put() is safe for module type kobjects xenbus: Use kref to track req lifetime usb: uhci-platform: Make the clock really optional iio: imu: st_lsm6dsx: fix possible lockup in st_lsm6dsx_read_fifo iio: adis16201: Correct inclinometer channel resolution Input: synaptics - enable InterTouch on Dell Precision M3800 Input: synaptics - enable InterTouch on Dynabook Portege X30L-G Input: synaptics - enable InterTouch on Dynabook Portege X30-D net: dsa: b53: fix learning on VLAN unaware bridges scsi: target: Fix WRITE_SAME No Data Buffer crash dm: fix copying after src array boundaries iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid irqchip/gic-v2m: Add const to of_device_id sch_htb: make htb_qlen_notify() idempotent of: module: add buffer overflow check in of_modalias() net: fec: ERR007885 Workaround for conventional TX lan743x: remove redundant initialization of variable current_head_index net: dlink: Correct endianness handling of led_mode tracing: Fix oob write in trace_seq_to_buffer() dm: always update the array size in realloc_argv on success wifi: brcm80211: fmac: Add error handling for brcmf_usb_dl_writeimage() amd-xgbe: Fix to ensure dependent features are toggled with RX checksum offload i2c: imx-lpi2c: Fix clock count when probe defers EDAC/altera: Set DDR and SDMMC interrupt mask before registration EDAC/altera: Test the correct error reg offset signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die mmc: sdhci: Do not lock spinlock around mmc_gpio_get_ro() x86/bugs: fix backport error in "x86/bugs: Don't fill RSB on VMEXIT with eIBRS+retpoline" x86/bugs: fix backport error in "x86/bugs: Don't fill RSB on VMEXIT with eIBRS+retpoline" CIP: Bump version suffix to -cip121 after merge from cip/linux-4.19.y-st tree Update localversion-st, tree is up-to-date with 5.4.293. x86/bugs: Don't fill RSB on VMEXIT with eIBRS+retpoline clk: check for disabled clock-provider in of_clk_get_hw_from_clkspec() PCI: Rename PCI_IRQ_LEGACY to PCI_IRQ_INTX MIPS: cm: Fix warning if MIPS_CM is disabled comedi: jr3_pci: Fix synchronous deletion of timer scsi: pm80xx: Set phy_attached to zero when device is gone ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls selftests: ublk: fix test_stripe_04 KVM: s390: Don't use %pK through tracepoints sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP ntb: reduce stack usage in idt_scan_mws qibfs: fix _another_ leak usb: gadget: aspeed: Add NULL pointer check in ast_vhub_init_dev() usb: host: max3421-hcd: Add missing spi_device_id table parisc: PDT: Fix missing prototype warning MIPS: cm: Detect CM quirks from device tree USB: VLI disk crashes if LPM is used usb: quirks: Add delay init quirk for SanDisk 3.2Gen1 Flash Drive usb: quirks: add DELAY_INIT quirk for Silicon Motion Flash Drive usb: dwc3: gadget: check that event count does not exceed event buffer length USB: OHCI: Add quirk for LS7A OHCI controller (rev 0x02) USB: serial: simple: add OWON HDS200 series oscilloscope support USB: serial: option: add Sierra Wireless EM9291 USB: serial: ftdi_sio: add support for Abacus Electrics Optical Probe USB: storage: quirk for ADATA Portable HDD CH94 mcb: fix a double free bug in chameleon_parse_gdd() virtio_console: fix missing byte order handling for cols and rows net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too net_sched: hfsc: Fix a UAF vulnerability in class handling tipc: fix NULL pointer dereference in tipc_mon_reinit_self() net: phy: leds: fix memory leak cpufreq: scpi: Fix null-ptr-deref in scpi_cpufreq_get_rate() misc: pci_endpoint_test: Fix displaying 'irq_type' after 'request_irq' error misc: pci_endpoint_test: Use INTX instead of LEGACY net: dsa: mv88e6xxx: fix VTU methods for 6320 family ext4: fix OOB read when checking dotdot dir ext4: optimize __ext4_check_dir_entry() MIPS: ds1287: Match ds1287_set_base_clock() function types MIPS: cevt-ds1287: Add missing ds1287.h include MIPS: dec: Declare which_prom() as static virtio-net: Add validation for used length openvswitch: fix lockup on tx to unregistering netdev with carrier net: openvswitch: fix race on port output mmc: cqhci: Fix checking of CQHCI_HALT state nvmet-fc: Remove unused functions usb: dwc3: support continuous runtime PM with dual role misc: pci_endpoint_test: Fix 'irq_type' to convey the correct type misc: pci_endpoint_test: Avoid issue of interrupts remaining after request_irq error tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink(). kbuild: Add '-fno-builtin-wcslen' drm/sti: remove duplicate object names drm/repaper: fix integer overflows in repeat functions module: sign with sha512 instead of sha1 by default isofs: Prevent the use of too small fid i2c: cros-ec-tunnel: defer probe if parent EC is not present hfs/hfsplus: fix slab-out-of-bounds in hfs_bnode_read_key btrfs: correctly escape subvol in btrfs_show_options() nfs: move nfs_fhandle_hash to common include file NFSD: Constify @fh argument of knfsd_fh_hash() asus-laptop: Fix an uninitialized variable writeback: fix false warning in inode_to_wb() net: b53: enable BPDU reception for management port net: openvswitch: fix nested key length validation in the set() action Revert "wifi: mac80211: Update skb's control block key in ieee80211_tx_dequeue()" Bluetooth: btrtl: Prevent potential NULL dereference Bluetooth: hci_event: Fix sending MGMT_EV_DEVICE_FOUND for invalid address RDMA/usnic: Fix passing zero to PTR_ERR in usnic_ib_pci_probe() scsi: iscsi: Fix missing scsi_host_put() in error path wifi: wl1251: fix memory leak in wl1251_tx_work wifi: mac80211: Purge vif txq in ieee80211_do_stop() wifi: mac80211: Update skb's control block key in ieee80211_tx_dequeue() wifi: at76c50x: fix use after free access in at76_disconnect HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition Bluetooth: hci_uart: Fix another race during initialization x86/e820: Fix handling of subpage regions when calculating nosave ranges in e820__register_nosave_regions() PCI: Fix reference leak in pci_alloc_child_bus() of/irq: Fix device node refcount leakages in of_irq_init() of/irq: Fix device node refcount leakage in API irq_of_parse_and_map() gpio: zynq: Fix wakeup source leaks on device unbind ftrace: Add cond_resched() to ftrace_graph_set_hash() crypto: ccp - Fix check for the primary ASP device thermal/drivers/rockchip: Add missing rk3328 mapping entry sctp: detect and prevent references to a freed transport in sendmsg mm: add missing release barrier on PGDAT_RECLAIM_LOCKED unlock sparc/mm: disable preemption in lazy mmu mode arm64: dts: mediatek: mt8173: Fix disp-pwm compatible string mtd: inftlcore: Add error check for inftl_read_oob() lib: scatterlist: fix sg_split_phys to preserve original scatterlist offsets jbd2: remove wrong sb->s_sequence check ext4: fix off-by-one error in do_split media: venus: hfi_parser: add check to avoid out of bound access media: i2c: ov7251: Introduce 1 ms delay between regulators and en GPIO media: i2c: ov7251: Set enable GPIO low in probe media: v4l2-dv-timings: prevent possible overflow in v4l2_detect_gtf() media: streamzap: prevent processing IR data on URB failure mtd: rawnand: brcmnand: fix PM resume warning arm64: cputype: Add MIDR_CORTEX_A76AE xenfs/xensyms: respect hypervisor's "next" indication media: siano: Fix error handling in smsdvb_module_init() media: venus: hfi: add check to handle incorrect queue size media: venus: hfi: add a check to handle OOB in sfr region media: i2c: adv748x: Fix test pattern selection mask bpf: support SKF_NET_OFF and SKF_LL_OFF on skb frags bpf: Add endian modifiers to fix endian warnings fbdev: omapfb: Add 'plane' value check drm/mediatek: mtk_dpi: Explicitly manage TVD clock in power on/off drm/amdkfd: Fix pqm_destroy_queue race with GPU reset drm: allow encoder mode_set even when connectors change for crtc Bluetooth: hci_uart: fix race during initialization tracing: fix return value in __ftrace_event_enable_disable for TRACE_REG_UNREGISTER net: vlan: don't propagate flags on open scsi: st: Fix array overflow in st_setup() ext4: ignore xattrs past end ext4: protect ext4_release_dquot against freezing ahci: add PCI ID for Marvell 88SE9215 SATA Controller ata: libata-eh: Do not use ATAPI DMA for a device limited to PIO mode jfs: add sanity check for agwidth in dbMount jfs: Prevent copying of nlink with value 0 from disk inode fs/jfs: Prevent integer overflow in AG size calculation fs/jfs: cast inactags to s64 to prevent potential overflow ALSA: usb-audio: Fix CME quirk for UF series keyboards ALSA: hda: intel: Fix Optimus when GPU has no sound HID: pidff: Fix null pointer dereference in pidff_find_fields HID: pidff: Do not send effect envelope if it's empty HID: pidff: Convert infinite length from Linux API to PID standard perf: arm_pmu: Don't disable counter in armpmu_add() x86/cpu: Don't clear X86_FEATURE_LAHF_LM flag in init_amd_k8() on AMD when running in a virtual machine pm: cpupower: bench: Prevent NULL dereference on malloc failure net: ppp: Add bound checking for skb data on ppp_sync_txmung ata: sata_sx4: Add error handling in pdc20621_i2c_read() ata: sata_sx4: Drop pointless VPRINTK() calls and convert the remaining ones tipc: fix memory leak in tipc_link_xmit ata: pata_pxa: Fix potential NULL pointer dereference in pxa_ata_probe() CIP: Bump version suffix to -cip120 after merge from cip/linux-4.19.y-st tree Update localversion-st, tree is up-to-date with 5.4.292. net: dsa: mv88e6xxx: propperly shutdown PPU re-enable timer on destroy jfs: add index corruption check to DT_GETPAGE() jfs: fix slab-out-of-bounds read in ea_get() tracing: Fix use-after-free in print_graph_function_flags during tracer switching mmc: sdhci-pxav3: set NEED_RSP_BUSY capability x86/tsc: Always save/restore TSC sched_clock() on suspend/resume ntb_perf: Delete duplicate dmaengine_unmap_put() call in perf_copy_chunk() arcnet: Add NULL check in com20020pci_probe() ipv6: fix omitted netlink attributes when using RTEXT_FILTER_SKIP_STATS vsock: avoid timeout during connect() if the socket is closing net_sched: skbprio: Remove overly strict queue assertions netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets ntb: intel: Fix using link status DB's ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans spufs: fix a leak in spufs_create_context() spufs: fix a leak on spufs_new_file() failure hwmon: (nct6775-core) Fix out of bounds access for NCT679{8,9} sched/deadline: Use online cpus for validating runtime affs: don't write overlarge OFS data block size fields affs: generate OFS sequence numbers starting at 1 wifi: iwlwifi: fw: allocate chained SG tables for dump sched/smt: Always inline sched_smt_active() ring-buffer: Fix bytes_dropped calculation issue objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds() fs/procfs: fix the comment above proc_pid_wchan() perf python: Check if there is space to copy all the event perf python: Decrement the refcount of just created event on failure perf python: Fixup description of sample.id event member ocfs2: validate l_tree_depth to avoid out-of-bounds access perf units: Fix insufficient array space iio: accel: mma8452: Ensure error return on failure to matching oversampling ratio coresight: catu: Fix number of pages while using 64k pages isofs: fix KMSAN uninit-value bug in do_isofs_readdir() x86/dumpstack: Fix inaccurate unwinding from exception stacks due to misplaced assignment mfd: sm501: Switch to BIT() to mitigate integer overflows RDMA/mlx5: Fix mlx5_poll_one() cur_qp update flow power: supply: max77693: Fix wrong conversion of charge input threshold value x86/entry: Fix ORC unwinder for PUSH_REGS with save_ret=1 IB/mad: Check available slots before posting receive WRs clk: rockchip: rk3328: fix wrong clk_ref_usb3otg parent lib: 842: Improve error handling in sw842_compress() clk: amlogic: gxbb: drop incorrect flag on 32k clock fbdev: sm501fb: Add some geometry checks. mdacon: rework dependency list fbdev: au1100fb: Move a variable assignment behind a null pointer check PCI/portdrv: Only disable pciehp interrupts early when needed ALSA: hda/realtek: Always honor no_shutup_pins perf/ring_buffer: Allow the EPOLLRDNORM flag for poll lockdep: Don't disable interrupts on RT in disable_irq_nosync_lockdep.*() thermal: int340x: Add NULL check for adev EDAC/ie31200: Fix the error path order of ie31200_init() EDAC/ie31200: Fix the DIMM size mask for several SoCs x86/fpu: Avoid copying dynamic FP state from init_task in arch_dup_task_struct() cpufreq: governor: Fix negative 'idle_time' handling in dbs_update() net: usb: usbnet: restore usb%d name exception for local mac addresses net: usb: qmi_wwan: add Telit Cinterion FE990B composition net: usb: qmi_wwan: add Telit Cinterion FN990B composition tty: serial: 8250: Add some more device IDs netfilter: socket: Lookup orig tuple for IPv6 SNAT ARM: 9351/1: fault: Add "cut here" line for prefetch aborts ARM: 9350/1: fault: Implement copy_from_kernel_nofault_allowed() atm: Fix NULL pointer dereference ALSA: usb-audio: Add quirk for Plantronics headsets to fix control names drm/radeon: fix uninitialized size issue in radeon_vce_cs_parse() batman-adv: Ignore own maximum aggregation size during RX ARM: shmobile: smp: Enforce shmobile_smp_* alignment mmc: atmel-mci: Add missing clk_disable_unprepare() net/neighbor: add missing policy for NDTPA_QUEUE_LENBYTES net: atm: fix use after free in lec_send() Bluetooth: Fix error code in chan_alloc_skb_cb() RDMA/hns: Fix wrong value of max_sge_rd RDMA/bnxt_re: Avoid clearing VLAN_ID mask in modify qp path xfrm_output: Force software GSO only in tunnel mode i2c: sis630: Fix an error handling path in sis630_probe() i2c: ali15x3: Fix an error handling path in ali15x3_probe() i2c: ali1535: Fix an error handling path in ali1535_probe() ASoC: codecs: wm0010: Fix error handling path in wm0010_spi_probe() drm/gma500: Add NULL check for pci_gfx_root in mid_get_vbt_data() qlcnic: fix memory leak issues in qlcnic_sriov_common.c drm/amd/display: Assign normalized_pix_clk when color depth = 14 x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes USB: serial: option: match on interface class for Telit FN990B USB: serial: option: fix Telit Cinterion FE990A name USB: serial: option: add Telit Cinterion FE990B compositions USB: serial: ftdi_sio: add support for Altera USB Blaster 3 block: fix 'kmem_cache of name 'bio-108' already exists' drm/nouveau: Do not override forced connector status x86/irq: Define trace events conditionally nvme: only allow entering LIVE from CONNECTING state sctp: Fix undefined behavior in left shift operation nvmet-rdma: recheck queue state is LIVE in state lock in recv done s390/cio: Fix CHPID "configure" attribute caching HID: ignore non-functional sensor in HP 5MP Camera iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic() powercap: call put_device() on an error path in powercap_register_control_type() nvme-fc: go straight to connecting state when initializing net_sched: Prevent creation of classes with TC_H_ROOT ipvs: prevent integer overflow in do_ip_vs_get_ctl() netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree() Drivers: hv: vmbus: Don't release fb_mmio resource in vmbus_free_mmio() drivers/hv: Replace binary semaphore with mutex netpoll: hold rcu read lock in __netpoll_send_skb() netpoll: netpoll_send_skb() returns transmit status netpoll: move netpoll_send_skb() out of line netpoll: remove dev argument from netpoll_send_skb_on_dev() netpoll: Fix use correct return type for ndo_start_xmit() pinctrl: bcm281xx: Fix incorrect regmap max_registers value sctp: sysctl: auth_enable: avoid using current->nsproxy sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy Revert "sctp: sysctl: auth_enable: avoid using current->nsproxy" Revert "sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy" sched/isolation: Prevent boot crash when the boot CPU is nohz_full CIP: Bump version suffix to -cip119 after merge from cip/linux-4.19.y-st tree watchdog: renesas_wdt: support handover from bootloader Update localversion-st, tree is up-to-date with 5.4.291. gtp: Suppress list corruption splat in gtp_net_exit_batch_rtnl(). gtp: Destroy device along with udp socket's netns dismantle. net: gso: fix ownership in __udp_gso_segment vlan: fix memory leak in vlan_newlink() batman-adv: Drop unmanaged ELP metric worker tee: optee: Fix supplicant wait loop pps: Fix a use-after-free net: rose: lock the socket in rose_bind() btrfs: fix use-after-free when attempting to join an aborted transaction media: lmedm04: Handle errors for lme2510_int_read wifi: rtlwifi: rtl8192se: rise completion of firmware loading as last step eeprom: digsy_mtc: Make GPIO lookup table match the device slimbus: messaging: Free transaction ID in delayed interrupt scenario intel_th: pci: Add Panther Lake-P/U support intel_th: pci: Add Panther Lake-H support intel_th: pci: Add Arrow Lake support Squashfs: check the inode number is not the invalid value of zero xhci: pci: Fix indentation in the PCI device ID definitions usb: gadget: Check bmAttributes only if configuration is valid usb: gadget: Fix setting self-powered state on suspend usb: gadget: Set self-powered based on MaxPower and bmAttributes usb: typec: tcpci_rt1711h: Unmask alert interrupts to fix functionality usb: typec: ucsi: increase timeout for PPM reset operations usb: atm: cxacru: fix a flaw in existing endpoint checks usb: quirks: Add DELAY_INIT and NO_LPM for Prolific Mass Storage Card Reader usb: renesas_usbhs: Use devm_usb_get_phy() Revert "drivers/card_reader/rtsx_usb: Restore interrupt based detection" net: ipv6: fix missing dst ref drop in ila lwtunnel net: ipv6: fix dst ref loop in ila lwtunnel net-timestamp: support TCP GSO case for a few missing flags vlan: enforce underlying device type ppp: Fix KMSAN uninit-value warning with bpf be2net: fix sleeping while atomic bugs in be_ndo_bridge_getlink hwmon: fix a NULL vs IS_ERR_OR_NULL() check in xgene_hwmon_probe() llc: do not use skb_get() before dev_queue_xmit() hwmon: (ad7314) Validate leading zero bits and return error hwmon: (ntc_thermistor) Fix the ncpXXxh103 sensor table hwmon: (pmbus) Initialise page count in pmbus_identify() caif_virtio: fix wrong pointer check in cfv_probe() HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() mm/page_alloc: fix uninitialized variable rapidio: fix an API misues when rio_add_net() fails rapidio: add check for rio_add_net() in rio_scan_alloc_net() wifi: nl80211: reject cooked mode if it is set along with other flags wifi: cfg80211: regulatory: improve invalid hints checking x86/cpu: Properly parse CPUID leaf 0x2 TLB descriptor 0x63 x86/cpu: Validate CPUID leaf 0x2 EDX output x86/cacheinfo: Validate CPUID leaf 0x2 EDX output platform/x86: thinkpad_acpi: Add battery quirk for ThinkPad X131e drm/radeon: Fix rs400_gpu_init for ATI mobility radeon Xpress 200M ALSA: hda/realtek: update ALC222 depop optimize ALSA: hda: intel: Add Dell ALC3271 to power_save denylist HID: appleir: Fix potential NULL dereference at raw event handle Revert "of: reserved-memory: Fix using wrong number of cells to get property 'alignment'" drm/amdgpu: disable BAR resize on Dell G5 SE drm/amdgpu: Check extended configuration space register when system uses large bar drm/amdgpu: skip BAR resizing if the bios already did it acct: perform last write from workqueue kernel/acct.c: use dedicated helper to access rlimit values kernel/acct.c: use #elif instead of #end and #elif pfifo_tail_enqueue: Drop new packet when sch->limit == 0 sched/core: Prevent rescheduling when interrupts are disabled phy: exynos5-usbdrd: fix MPLL_MULTIPLIER and SSC_REFCLKSEL masks in refclk usbnet: gl620a: fix endpoint checking in genelink_bind() perf/core: Fix low freq setting via IOC_PERIOD ftrace: Avoid potential division by zero in function_stat_show() x86/CPU: Fix warm boot hang regression on AMD SC1100 SoC systems ipvs: Always clear ipvs_property flag in skb_scrub_packet() ASoC: es8328: fix route from DAC to output net: cadence: macb: Synchronize stats calculations sunrpc: suppress warnings for unused procfs functions batman-adv: Ignore neighbor throughput metrics in error case acct: block access to kernel internal filesystems ALSA: hda/conexant: Add quirk for HP ProBook 450 G4 mute LED nfp: bpf: Add check for nfp_app_ctrl_msg_alloc() power: supply: da9150-fg: fix potential overflow geneve: Suppress list corruption splat in geneve_destroy_tunnels(). geneve: Fix use-after-free in geneve_find_dev(). powerpc/code-patching: Fix KASAN hit by not flagging text patching area as VM_ALLOC ALSA: hda/realtek - Add type for ALC287 powerpc/64s: Rewrite __real_pte() and __rpte_to_hidx() as static inline powerpc/64s/mm: Move __real_pte stubs into hash-4k.h USB: gadget: f_midi: f_midi_complete to call queue_work usb/gadget: f_midi: Replace tasklet with work usb/gadget: f_midi: convert tasklets to use new tasklet_setup() API usb: dwc3: Fix timeout issue during controller enter/exit from halt state mm: update mark_victim tracepoints fields crypto: testmgr - some more fixes to RSA test vectors crypto: testmgr - populate RSA CRT parameters in RSA test vectors crypto: testmgr - fix version number of RSA tests crypto: testmgr - Fix wrong test case of RSA crypto: testmgr - fix wrong key length for pkcs1pad driver core: bus: Fix double free in driver API bus_register() scsi: storvsc: Set correct data length for sending SCSI command without payload vlan: move dev_put into vlan_dev_uninit vlan: introduce vlan_dev_free_egress_priority Revert "btrfs: avoid monopolizing a core when activating a swap file" parport_pc: add support for ASIX AX99100 can: ems_pci: move ASIX AX99100 ids to pci_ids.h nilfs2: protect access to buffers with no active references nilfs2: do not force clear folio if buffer is referenced nilfs2: do not output warnings when clearing dirty buffers alpha: replace hardcoded stack offsets with autogenerated ones ndisc: extend RCU protection in ndisc_send_skb() openvswitch: use RCU protection in ovs_vport_cmd_fill_info() arp: use RCU protection in arp_xmit() neighbour: use RCU protection in __neigh_notify() neighbour: delete redundant judgment statements ndisc: use RCU protection in ndisc_alloc_skb() ipv6: use RCU protection in ip6_default_advmss() ipv4: use RCU protection in inet_select_addr() ipv4: use RCU protection in rt_is_expired() net: add dev_net_rcu() helper net: treat possible_net_t net pointer as an RCU one and add read_pnet_rcu() partitions: mac: fix handling of bogus partition table gpio: stmpe: Check return value of stmpe_reg_read in stmpe_gpio_irq_sync_unlock alpha: align stack for page fault and user unaligned trap handlers alpha: make stack 16-byte aligned (most cases) can: c_can: fix unbalanced runtime PM disable in error path USB: serial: option: drop MeiG Smart defines USB: serial: option: fix Telit Cinterion FN990A name USB: serial: option: add Telit Cinterion FN990B compositions USB: serial: option: add MeiG Smart SLM828 usb: cdc-acm: Fix handling of oversized fragments usb: cdc-acm: Check control transfer buffer size before access USB: cdc-acm: Fill in Renesas R-Car D3 USB Download mode quirk USB: hub: Ignore non-compliant devices with too many configs or interfaces usb: gadget: f_midi: fix MIDI Streaming descriptor lengths USB: Add USB_QUIRK_NO_LPM quirk for sony xperia xz1 smartphone USB: quirks: add USB_QUIRK_NO_LPM quirk for Teclast dist USB: pci-quirks: Fix HCCPARAMS register error for LS7A EHCI usb: dwc2: gadget: remove of_node reference upon udc_stop usb: gadget: udc: renesas_usb3: Fix compiler warning usb: roles: set switch registered flag early on batman-adv: fix panic during interface removal ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet 5V orangefs: fix a oob in orangefs_debug_write Grab mm lock before grabbing pt lock vfio/pci: Enable iowrite64 and ioread64 for vfio pci media: cxd2841er: fix 64-bit division on gcc-9 xen: remove a confusing comment on auto-translated guest I/O gpio: bcm-kona: Add missing newline to dev_err format string gpio: bcm-kona: Fix GPIO lock/unlock for banks above bank 0 arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array team: better TEAM_OPTION_TYPE_STRING validation vrf: use RCU protection in l3mdev_l3_out() ndisc: ndisc_send_redirect() must use dev_get_by_index_rcu() HID: multitouch: Add NULL check in mt_input_configured ocfs2: check dir i_size in ocfs2_find_entry MIPS: ftrace: Declare ftrace_get_parent_ra_addr() as static ptp: Ensure info->enable callback is always set mtd: onenand: Fix uninitialized retlen in do_otp_read() NFC: nci: Add bounds checking in nci_hci_create_pipe() nilfs2: fix possible int overflows in nilfs_fiemap() ocfs2: handle a symlink read error correctly ocfs2: fix incorrect CPU endianness conversion causing mount failure nvmem: core: improve range check for nvmem_cell_write() crypto: qce - fix goto jump in error path media: uvcvideo: Remove redundant NULL assignment media: uvcvideo: Fix event flags in uvc_ctrl_send_events media: ov5640: fix get_light_freq on auto soc: qcom: smem_state: fix missing of_node_put in error path powerpc/pseries/eeh: Fix get PE state translation serial: sh-sci: Do not probe the serial port if its slot in sci_ports[] is in use serial: sh-sci: Drop __initdata macro for port_cfg usb: gadget: f_tcm: Don't prepare BOT write request twice usb: gadget: f_tcm: ep_autoconfig with fullspeed endpoint usb: gadget: f_tcm: Decrement command ref count on cleanup usb: gadget: f_tcm: Translate error to sense wifi: brcmfmac: fix NULL pointer dereference in brcmf_txfinalize() HID: hid-sensor-hub: don't use stale platform-data on remove of: reserved-memory: Fix using wrong number of cells to get property 'alignment' of: Fix of_find_node_opts_by_path() handling of alias+path+options of: Correct child specifier used as input of the 2nd nexus node clk: qcom: clk-alpha-pll: fix alpha mode configuration Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc KVM: s390: vsie: fix some corner-cases when grabbing vsie pages KVM: Explicitly verify target vCPU is online in kvm_get_vcpu() arm64: dts: rockchip: increase gmac rx_delay on rk3399-puma binfmt_flat: Fix integer overflow bug on 32 bit systems m68k: vga: Fix I/O defines s390/futex: Fix FUTEX_OP_ANDN implementation leds: lp8860: Write full EEPROM, not only half of it cpufreq: s3c64xx: Fix compilation warning tun: revert fix group permission check netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() udp: gso: do not drop small packets when PMTU reduces tg3: Disable tg3 PCIe AER on system reboot firmware: iscsi_ibft: fix ISCSI_IBFT Kconfig entry nvme: handle connectivity loss in nvme_set_queue_count usb: xhci: Fix NULL pointer dereference on certain command aborts usb: xhci: Add timeout argument in address_device USB HCD callback media: uvcvideo: Remove dangling pointers media: uvcvideo: Only save async fh if success nilfs2: handle errors that nilfs_prepare_chunk() may return nilfs2: eliminate staggered calls to kunmap in nilfs_rename nilfs2: move page release outside of nilfs_delete_entry and nilfs_set_link x86/mm: Don't disable PCID when INVLPG has been fixed by microcode HID: Wacom: Add PCI Wacom device support mfd: lpc_ich: Add another Gemini Lake ISA bridge PCI device-id wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() mmc: core: Respect quirk_max_rate for non-UHS SDIO card tun: fix group permission check printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX sched: Don't try to catch up excess steal time. btrfs: convert BUG_ON in btrfs_reloc_cow_block() to proper error handling btrfs: output the reason for open_ctree() failure usb: gadget: f_tcm: Don't free command immediately media: uvcvideo: Fix double free in error path usb: typec: tcpm: set SRC_SEND_CAPABILITIES timeout to PD_T_SENDER_RESPONSE drivers/card_reader/rtsx_usb: Restore interrupt based detection ktest.pl: Check kernelrelease return in get_version NFSD: Reset cb_seq_status after NFS4ERR_DELAY hexagon: Fix unbalanced spinlock in die() hexagon: fix using plain integer as NULL pointer warning in cmpxchg genksyms: fix memory leak when the same symbol is read from *.symref file genksyms: fix memory leak when the same symbol is added from source net: sh_eth: Fix missing rtnl lock in suspend/resume path vsock: Allow retrying on connect() failure net: davicom: fix UAF in dm9000_drv_remove net: rose: fix timer races against user threads PM: hibernate: Add error handling for syscore_suspend() net: fec: implement TSO descriptor cleanup ubifs: skip dumping tnc tree when zroot is null dmaengine: ti: edma: fix OF node reference leaks in edma_driver module: Extend the preempt disabled section in dereference_symbol_descriptor(). ocfs2: mark dquot as inactive if failed to start trans while releasing dquot scsi: mpt3sas: Set ioc->manu_pg11.EEDPTagMode directly to 1 media: camif-core: Add check for clk_enable() media: mipi-csis: Add check for clk_enable() PCI: endpoint: Destroy the EPC device in devm_pci_epc_destroy() media: rc: iguanair: handle timeouts fbdev: omapfb: Fix an OF node leak in dss_of_port_get_parent_device() ARM: dts: mediatek: mt7623: fix IR nodename arm64: dts: mediatek: mt8173-evb: Fix MT6397 PMIC sub-node names arm64: dts: mediatek: mt8173-evb: Drop regulator-compatible property rdma/cxgb4: Prevent potential integer overflow on 32bit RDMA/mlx4: Avoid false error about access to uninitialized gids array perf report: Fix misleading help message about --demangle perf top: Don't complain about lack of vmlinux when not resolving some kernel samples padata: fix sysfs store callback check ktest.pl: Remove unused declarations in run_bisect_test function net: sched: Disallow replacing of child qdisc from one parent to another net/mlxfw: Drop hard coded max FW flash image size selftests: harness: fix printing of mismatch values in __EXPECT() selftests/harness: Display signed values correctly wifi: wlcore: fix unbalanced pm_runtime calls regulator: of: Implement the unwind path of of_regulator_match() team: prevent adding a device which is already a team device lower cpupower: fix TSC MHz calculation wifi: rtlwifi: pci: wait for firmware loading before releasing memory wifi: rtlwifi: fix memory leaks and invalid access at probe error path wifi: rtlwifi: remove unused dualmac control leftovers rtlwifi: replace usage of found with dedicated list iterator variable wifi: rtlwifi: usb: fix workqueue leak when probe fails wifi: rtlwifi: do not complete firmware loading needlessly drm/amdgpu: Fix potential NULL pointer dereference in atomctrl_get_smc_sclk_range_table drm/etnaviv: Fix page property being used for non writecombine buffers afs: Fix directory format encoding struct overflow: Allow mixed type arguments overflow: Correct check_shl_overflow() comment overflow: Add __must_check attribute to check_*() helpers udf: Fix use of check_add_overflow() with mixed type arguments CIP: Bump version suffix to -cip118 after merge from cip/linux-4.19.y-st tree Update localversion-st, tree is up-to-date with 5.4.290. gtp: Use for_each_netdev_rcu() in gtp_genl_dump_pdp(). arm64: dts: rockchip: add hevc power domain clock to rk3328 Partial revert of xhci: use pm_ptr() instead #ifdef for CONFIG_PM conditionals xhci: use pm_ptr() instead of #ifdef for CONFIG_PM conditionals Input: xpad - add support for wooting two he (arm) Input: xpad - add unofficial Xbox 360 wireless receiver clone Input: atkbd - map F23 key to support default copilot shortcut Revert "usb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null" USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb() vfio/platform: check the bounds of read/write syscalls net/xen-netback: prevent UAF in xenvif_flush_hash() m68k: Add missing mmap_read_lock() to sys_cacheflush() m68k: Update ->thread.esp0 before calling syscall_trace() in ret_from_signal gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag irqchip/sunxi-nmi: Add missing SKIP_WAKE flag scsi: iscsi: Fix redundant response for ISCSI_UEVENT_GET_HOST_STATS request ASoC: wm8994: Add depends on MFD core net: fix data-races around sk->sk_forward_alloc scsi: sg: Fix slab-use-after-free read in sg_release() ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev() irqchip/gic-v3: Handle CPU_PM_ENTER_FAILED correctly fs/proc: fix softlockup in __read_vmcore (part 2) poll_wait: add mb() to fix theoretical race between waitqueue_active() and .poll() hfs: Sanity check the root record mac802154: check local interfaces before deleting sdata list i2c: mux: demux-pinctrl: check initial mux selection, too nfp: bpf: prevent integer overflow in nfp_bpf_event_output() gtp: use exit_batch_rtnl() method net: add exit_batch_rtnl() method net: net_namespace: Optimize the code net: ethernet: ti: cpsw_ale: Fix cpsw_ale_get_field() sctp: sysctl: rto_min/max: avoid using current->nsproxy ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv ocfs2: correct return value of ocfs2_local_free_info() phy: core: Fix that API devm_of_phy_provider_unregister() fails to unregister the phy provider phy: core: fix code style in devm_of_phy_provider_unregister arm64: dts: rockchip: fix pd_tcpc0 and pd_tcpc1 node position on rk3399 arm64: dts: rockchip: fix defines in pd_vio node for rk3399 iio: inkern: call iio_device_put() only on mapped devices iio: adc: at91: call input_free_device() on allocated iio_dev iio: adc: ti-ads8688: fix information leak in triggered buffer iio: imu: kmx61: fix information leak in triggered buffer iio: dummy: iio_simply_dummy_buffer: fix information leak in triggered buffer iio: pressure: zpa2326: fix information leak in triggered buffer usb: gadget: f_fs: Remove WARN_ON in functionfs_bind usb: fix reference leak in usb_new_device() USB: usblp: return error when setting unsupported protocol usb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null USB: serial: cp210x: add Phoenix Contact UPS Device usb-storage: Add max sectors quirk for Nokia 208 staging: iio: ad9832: Correct phase range check staging: iio: ad9834: Correct phase range check USB: serial: option: add Neoway N723-EA support USB: serial: option: add MeiG Smart SRM815 drm/amd/display: Add check for granularity in dml ceil/floor helpers sctp: sysctl: auth_enable: avoid using current->nsproxy sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy dm thin: make get_first_thin use rcu-safe list first function tcp/dccp: allow a connection when sk_max_ack_backlog is zero tcp/dccp: complete lockless accesses to sk->sk_max_ack_backlog net: 802: LLC+SNAP OID:PID lookup on start of skb data ieee802154: ca8210: Add missing check for kfifo_alloc() in ca8210_probe() dm array: fix cursor index when skipping across block boundaries dm array: fix unreleased btree blocks on closing a faulty array cursor dm array: fix releasing a faulty array block twice in dm_array_cursor_end jbd2: flush filesystem device before updating tail sequence ravb: Fix use-after-free issue in ravb_tx_timeout_work() net/sched: netem: fix backport of "account for backlog updates from child qdisc" CIP: Bump version suffix to -cip117 after merge from cip/linux-4.19.y-st tree Update localversion-st, tree is up-to-date with 5.4.289. RDMA/bnxt_re: Fix max_qp_wrs reported net/sched: netem: account for backlog updates from child qdisc net/sched: cbs: Fix integer overflow in cbs_set_port_rate() netfilter: nft_set_hash: skip duplicated elements pending gc run drm/etnaviv: flush shader L1 cache after user commandstream usb: yurex: make waiting on yurex_write interruptible perf trace: Avoid garbage when not printing a syscall's arguments scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb() mfd: intel_soc_pmic_bxtwc: Use IRQ domain for PMIC devices mfd: intel_soc_pmic_bxtwc: Use IRQ domain for TMU device mm: vmscan: account for free pages to prevent infinite Loop in throttle_direct_reclaim() drm: adv7511: Drop dsi single lane support net/sctp: Prevent autoclose integer overflow in sctp_association_init() sky2: Add device ID 11ab:4373 for Marvell 88E8075 pinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking modpost: fix the missed iteration for the max bit in do_input() modpost: fix input MODULE_DEVICE_TABLE() built for 64-bit on 32-bit host irqchip/gic: Correct declaration of *percpu_base pointer in union gic_base net: usb: qmi_wwan: add Telit FE910C04 compositions sound: usb: format: don't warn that raw DSD is unsupported wifi: mac80211: wake the queues in case of failure in resume ila: serialize calls to nf_register_net_hooks() af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK af_packet: fix vlan_get_tci() vs MSG_PEEK ALSA: usb-audio: US16x08: Initialize array before use net: llc: reset skb->transport_header netrom: check buffer length before accessing it drm/bridge: adv7511_audio: Update Audio InfoFrame properly drm: bridge: adv7511: Enable SPDIF DAI RDMA/bnxt_re: Fix reporting hw_ver in query_device RDMA/bnxt_re: Add check for path mtu in modify_qp Drivers: hv: util: Avoid accessing a ringbuffer not initialized yet selinux: ignore unknown extended permissions btrfs: avoid monopolizing a core when activating a swap file tracing: Constify string literal data member in struct trace_event_call MIPS: Probe toolchain support of -msym32 virtio-blk: don't keep queue frozen during system suspend platform/x86: asus-nb-wmi: Ignore unknown event 0xCF regmap: Use correct format specifier for logging range errors scsi: qla1280: Fix hw revision numbering for ISP1020/1040 tracing/kprobe: Make trace_kprobe's module callback called after jump_label update mtd: rawnand: fix double free in atmel_pmecc_create_user() dmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset dmaengine: mv_xor: fix child node refcount handling in early exit phy: core: Fix that API devm_phy_destroy() fails to destroy the phy phy: core: Fix that API devm_phy_put() fails to release the phy phy: core: Fix an OF node refcount leakage in of_phy_provider_lookup() phy: core: Fix an OF node refcount leakage in _of_phy_get() mtd: diskonchip: Cast an operand to prevent potential overflow nfsd: restore callback functionality for NFSv4.0 bpf: Check negative offsets in __bpf_skb_min_len() media: dvb-frontends: dib3000mb: fix uninit-value in dib3000_write_reg of: Fix error path in of_parse_phandle_with_args_map() nilfs2: prevent use of deleted inode of/irq: Fix using uninitialized variable @addr_len in API of_irq_parse_one() NFS/pnfs: Fix a live lock between recalled layouts and layoutget zram: refuse to use zero sized block device as backing device sh: clk: Fix clk_enable() to return 0 on NULL clk USB: serial: option: add Telit FE910C04 rmnet compositions USB: serial: option: add MediaTek T7XX compositions USB: serial: option: add Netprisma LCUK54 modules for WWAN Ready USB: serial: option: add MeiG Smart SLM770A USB: serial: option: add TCL IK512 MBIM & ECM efivarfs: Fix error on non-existent file i2c: riic: Always round-up when calculating bus period chelsio/chtls: prevent potential integer overflow on 32bit mmc: sdhci-tegra: Remove SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC quirk netfilter: ipset: Fix for recursive locking warning net: ethernet: bgmac-platform: fix an OF node reference leak net: hinic: Fix cleanup in create_rxqs/txqs() net/smc: check sndbuf_space again after NOSPACE flag is set in smc_poll i2c: pnx: Fix timeout in wait functions PCI: Add ACS quirk for Broadcom BCM5760X NIC ALSA: usb: Fix UBSAN warning in parse_audio_unit() PCI/AER: Disable AER service on suspend net: sched: fix ordering of qlen adjustment ALSA: usb-audio: Fix a DMA to stack memory bug xen/netfront: fix crash when removing device KVM: arm64: Ignore PMCNTENSET_EL0 while checking for overflow status qca_spi: Make driver probing reliable ACPI: resource: Fix memory resource type union access net: lapb: increase LAPB_HEADER_LEN batman-adv: Do not let TT changes list grows indefinitely batman-adv: Remove uninitialized data in full table TT response batman-adv: Do not send uninitialized TT changes usb: gadget: u_serial: Fix the issue that gs_start_io crashed due to accessing null pointer usb: ehci-hcd: fix call balance of clocks handling routines usb: dwc2: hcd: Fix GetPortStatus & SetPortFeature ata: sata_highbank: fix OF node reference leak in highbank_initialize_phys() usb: host: max3421-hcd: Correctly abort a USB request. bpf, xdp: Update devmap comments to reflect napi/rcu usage ALSA: usb-audio: Fix out of bounds reads when finding clock sources PCI: rockchip-ep: Fix address translation unit programming Revert "drm/amdgpu: add missing size check in amdgpu_debugfs_gprwave_read()" modpost: Add .irqentry.text to OTHER_SECTIONS ocfs2: Revert "ocfs2: fix the la space leak when unmounting an ocfs2 volume" jffs2: Fix rtime decompressor jffs2: Prevent rtime decompress memory corruption KVM: arm64: vgic-its: Clear ITE when DISCARD frees an ITE KVM: arm64: vgic-its: Clear DTE when MAPD unmaps a device KVM: arm64: vgic-its: Add a data length check in vgic_its_save_* misc: eeprom: eeprom_93cx6: Add quirk for extra read clock cycle powerpc/prom_init: Fixup missing powermac #size-cells usb: chipidea: udc: handle USB Error Interrupt if IOC not set PCI: Add 'reset_subordinate' to reset hierarchy below bridge nvdimm: rectify the illogical code within nd_dax_probe() scsi: st: Add MTIOCGET and MTLOAD to ioctls allowed after device reset scsi: st: Don't modify unknown block number in MTIOCGET leds: class: Protect brightness_show() with led_cdev->led_access mutex tracing: Use atomic64_inc_return() in trace_clock_counter() netpoll: Use rcu_access_pointer() in __netpoll_setup rocker: fix link status detection in rocker_carrier_init() ASoC: hdmi-codec: reorder channel allocation list wifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw() wifi: ipw2x00: libipw_rx_any(): fix bad alignment jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree jfs: fix array-index-out-of-bounds in jfs_readdir jfs: fix shift-out-of-bounds in dbSplit jfs: array-index-out-of-bounds fix in dtReadFirst wifi: ath5k: add PCI ID for Arcadyan devices wifi: ath5k: add PCI ID for SX76X net: inet6: do not leave a dangling sk pointer in inet6_create() net: inet: do not leave a dangling sk pointer in inet_create() net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() net: af_can: do not leave a dangling sk pointer in can_create() Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() af_packet: avoid erroring out after sock_init_data() in packet_create() net: ethernet: fs_enet: Use %pa to format resource_size_t net: fec_mpc52xx_phy: Use %pa to format resource_size_t samples/bpf: Fix a resource leak drm/radeon/r600_cs: Fix possible int overflow in r600_packet3_check() media: cx231xx: Add support for Dexatek USB Video Grabber 1d19:6108 media: uvcvideo: Add a quirk for the Kaiweets KTI-W02 infrared camera s390/cpum_sf: Handle CPU hotplug remove during sampling regmap: detach regmap from dev on regmap_exit bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry() scsi: qla2xxx: Remove check req_sg_cnt should be equal to rsp_sg_cnt scsi: qla2xxx: Supported speed displayed incorrectly for VPorts ocfs2: update seq_file index in ocfs2_dlm_seq_next tracing: Fix cmp_entries_dup() to respect sort() comparison rules HID: wacom: fix when get product name maybe null pointer bpf: Fix exact match conditions in trie_get_next_key() bpf: Handle BPF_EXIST and BPF_NOEXIST for LPM trie ocfs2: free inode when ocfs2_get_init_inode() fails spi: mpc52xx: Add cancel_work_sync before module remove drm/sti: Add __iomem for mixer_dbg_mxn's parameter gpio: grgpio: Add NULL check in grgpio_probe gpio: grgpio: use a helper variable to store the address of ofdev->dev crypto: x86/aegis128 - access 32-bit arguments as 32-bit x86/asm: Reorder early variables xen: Fix the issue of resource not being properly released in xenbus_dev_probe() xen/xenbus: fix locking xenbus/backend: Protect xenbus callback with lock xenbus/backend: Add memory pressure handler callback xen/xenbus: reference count registered modules netfilter: ipset: Hold module reference while requesting a module igb: Fix potential invalid memory access in igb_init_module() net/qed: allow old cards not supporting "num_images" to work dccp: Fix memory leak in dccp_feat_change_recv net/ipv6: release expired exception dst cached in socket netfilter: x_tables: fix LED ID check in led_tg_check() ipvs: fix UB due to uninitialized stack access in ip_vs_protocol_init() can: sun4i_can: sun4i_can_err(): fix {rx,tx}_errors statistics can: sun4i_can: sun4i_can_err(): call can_change_state() even if cf is NULL watchdog: mediatek: Make sure system reset gets asserted in mtk_wdt_restart() nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur dm thin: Add missing destroy_work_on_stack() util_macros.h: fix/rework find_closest() macros ftrace: Fix regression with module command in stack_trace_filter ovl: Filter invalid inodes with missing lookup function media: gspca: ov534-ov772x: Fix off-by-one error in set_frame_rate() media: venus: Fix pm_runtime_set_suspended() with runtime pm enabled media: ts2020: fix null-ptr-deref in ts2020_probe() media: i2c: tc358743: Fix crash in the probe error path when using polling btrfs: ref-verify: fix use-after-free after invalid ref action quota: flush quota_release_work upon quota writeback SUNRPC: correct error code comment in xs_tcp_setup_socket() um/sysrq: remove needless variable sp ALSA: hda/realtek: Set PCBeep to default value for ALC274 Revert "serial: sh-sci: Clean sci_ports[0] after at earlycon exit" serial: sh-sci: Clean sci_ports[0] after at earlycon exit ipmr: convert /proc handlers to rcu_read_lock() mfd: intel_soc_pmic_bxtwc: Use IRQ domain for USB Type-C device mfd: intel_soc_pmic_bxtwc: Use dev_err_probe() x86/xen/pvh: Annotate indirect branch as safe CIP: Bump version suffix to -cip116 after merge from stable Mark this as 4.19.324-cip115 release. CIP: Bump version suffix to -cip114 after merge from stable Mark this as 4.19.322-cip113 release. CIP: Bump version suffix to -cip112 after merge from stable CIP: Bump version suffix to -cip111 after merge from stable CIP: Bump version suffix to -cip110 after merge from stable CIP: Bump version suffix to -cip109 after merge from stable CIP: Bump version suffix to -cip108 after merge from stable memory: renesas-rpc-if: Clear HS bit during hardware initialization arm64: dts: renesas: rzg2: Add RPC-IF Support spi: spi-rpc-if: Check return value of rpcif_sw_init() memory: renesas-rpc-if: Remove redundant division of dummy memory: renesas-rpc-if: Simplify single/double data register access memory: renesas-rpc-if: Drop usage of RPCIF_DIRMAP_SIZE macro memory: renesas-rpc-if: Return error in case devm_ioremap_resource() fails memory: renesas-rpc-if: Fix HF/OSPI data transfer in Manual Mode memory: renesas-rpc-if: Correct QSPI data transfer in Manual mode memory: renesas-rpc-if: fix possible NULL pointer dereference of resource CIP: Bump version suffix to -cip107 after merge from stable ravb: remove undocumented counter processing ravb: remove undocumented endianness selection ravb: update "undocumented" annotations CIP: Bump version suffix to -cip106 after merge from stable Mark this as 4.19.299-cip105 release. CIP: Bump version suffix to -cip104 after merge from stable CIP: Bump version suffix to -cip103 after merge from stable CIP: Bump version suffix to -cip102 after merge from stable CIP: Bump version suffix to -cip101 after merge from stable CIP: Bump version suffix to -cip100 after merge from stable CIP: Bump version suffix to -cip99 after merge from stable CIP: Bump version suffix to -cip98 after merge from stable CIP: Bump version suffix to -cip97 after merge from stable CIP: Bump version suffix to -cip96 after merge from stable CIP: Bump version suffix to -cip95 after merge from stable CIP: Bump version suffix to -cip94 after merge from stable CIP: Bump version suffix to -cip93 after merge from stable CIP: Bump version suffix to -cip92 after merge from stable CIP: Bump version suffix to -cip91 after merge from stable CIP: Bump version suffix to -cip90 after merge from stable CIP: Bump version suffix to -cip89 after merge from stable CIP: Bump version suffix to -cip88 after merge from stable CIP: Bump version suffix to -cip87 after merge from stable CIP: Bump version suffix to -cip86 after merge from stable CIP: Bump version suffix to -cip85 after merge from stable CIP: Bump version suffix to -cip84 after merge from stable CIP: Bump version suffix to -cip83 after merge from stable CIP: Bump version suffix to -cip82 after merge from stable CIP: Bump version suffix to -cip81 after merge from stable drm: rcar-du: Fix Alpha blending issue on Gen3 CIP: Bump version suffix to -cip80 after merge from stable CIP: Bump version suffix to -cip79 after merge from stable CIP: Bump version suffix to -cip78 after merge from stable CIP: Bump version suffix to -cip77 after merge from stable CIP: Bump version suffix to -cip76 after merge from stable CIP: Bump version suffix to -cip75 after merge from stable CIP: Bump version suffix to -cip74 after merge from stable CIP: Bump version suffix to -cip73 after merge from stable CIP: Bump version suffix to -cip72 after merge from stable CIP: Bump version suffix to -cip71 after merge from stable CIP: Bump version suffix to -cip70 after merge from stable CIP: Bump version suffix to -cip69 after merge from stable CIP: Bump version suffix to -cip68 after merge from stable CIP: Bump version suffix to -cip67 after merge from stable CIP: Bump version suffix to -cip66 after merge from stable CIP: Bump version suffix to -cip65 after merge from stable CIP: Bump version suffix to -cip64 after merge from stable CIP: Bump version suffix to -cip63 after merge from stable CIP: Bump version suffix to -cip62 after merge from stable CIP: Bump version suffix to -cip61 after merge from stable CIP: Bump version suffix to -cip60 after merge from stable CIP: Bump version suffix to -cip59 after merge from stable CIP: Bump version suffix to -cip58 after merge from stable CIP: Bump version suffix to -cip57 after merge from stable CIP: Bump version suffix to -cip56 after merge from stable CIP: Bump version suffix to -cip55 after merge from stable CIP: Bump version suffix to -cip54 after merge from stable CIP: Bump version suffix to -cip53 after merge from stable CIP: Bump version suffix to -cip52 after merge from stable CIP: Bump version suffix to -cip51 after merge from stable CIP: Bump version suffix to -cip50 after merge from stable CIP: Bump version suffix to -cip49 after merge from stable media: i2c: imx219: Balance runtime PM use-count media: i2c: imx219: Move out locking/unlocking of vflip and hflip controls from imx219_set_stream CIP: Bump version suffix to -cip48 after merge from stable drm: rcar-du: Fix crash when using LVDS1 clock for CRTC CIP: Bump version suffix to -cip47 after merge from stable CIP: Bump version suffix to -cip46 after merge from stable arm64: dts: renesas: Add support for MIPI Adapter V2.1 connected to HiHope RZ/G2N arm64: dts: renesas: Add support for MIPI Adapter V2.1 connected to HiHope RZ/G2M arm64: dts: renesas: Add support for MIPI Adapter V2.1 connected to HiHope RZ/G2H arm64: dts: renesas: aistarvision-mipi-adapter-2.1: Add parent macro for each sensor arm64: dts: renesas: r8a774e1: Add VIN and CSI-2 nodes media: rcar-csi2: Enable support for R8A774E1 media: dt-bindings: media: renesas,csi2: Add R8A774E1 support media: rcar-vin: Enable support for R8A774E1 media: dt-bindings: media: renesas,vin: Add R8A774E1 support arm64: dts: renesas: r8a774b1: Add VIN and CSI-2 support media: rcar-csi2: Enable support for R8A774B1 media: dt-bindings: rcar-csi2: Add R8A774B1 support media: rcar-vin: Enable support for R8A774B1 media: dt-bindings: rcar-vin: Add R8A774B1 support arm64: dts: renesas: r8a774a1: Add VIN and CSI-2 nodes media: rcar-csi2: Enable support for r8a774a1 media: dt-bindings: media: rcar-csi2: Add r8a774a1 support media: rcar-vin: Enable support for r8a774a1 media: dt-bindings: media: rcar_vin: Add r8a774a1 support arm64: dts: renesas: r8a774c0-cat874: Add support for AISTARVISION MIPI Adapter V2.1 media: i2c: imx219: take lock in imx219_enum_mbus_code/frame_size media: i2c: imx219: Selection compliance fixes media: i2c: imx219: Fix a bug in imx219_enum_frame_size media: i2c: imx219: Implement get_selection media: i2c: imx219: Add support for cropped 640x480 resolution media: i2c: imx219: Add support for RAW8 bit bayer format media: i2c: imx219: Fix power sequence media: i2c: Add driver for Sony IMX219 sensor media: dt-bindings: media: i2c: Add IMX219 CMOS sensor binding media: rcar-csi2: Add support for MEDIA_BUS_FMT_SRGGB8_1X8 format media: rcar-vin: Add support for MEDIA_BUS_FMT_SRGGB8_1X8 format media: rcar-vin: Invalidate pipeline if conversion is not possible on input formats media: rcar-csi2: Update V3M and E3 start procedure media: rcar-vin: fix wrong return value in rvin_set_channel_routing() media: v4l: ctrl: Provide unlocked variant of v4l2_ctrl_grab media: v4l2-async: Log message in case of heterogeneous fwnode match media: v4l2-async: Pass notifier pointer to match functions media: v4l2-async: Accept endpoints and devices for fwnode matching media: device property: Add a function to test is a fwnode is a graph endpoint media: ov5645: Remove unneeded regulator_set_voltage() CIP: Bump version suffix to -cip45 after merge from stable CIP: Bump version suffix to -cip44 after merge from stable CIP: Bump version suffix to -cip43 after merge from stable CIP: Bump version suffix to -cip42 after merge from stable CIP: Bump version suffix to -cip41 after merge from stable spi: spi-mem: Make spi_mem_default_supports_op() static inline pinctrl: renesas: r8a77965: Add QSPI[01] pins, groups and functions pinctrl: renesas: r8a7796: Add QSPI[01] pins, groups and functions pinctrl: renesas: r8a77951: Add QSPI[01] pins, groups and functions pinctrl: renesas: r8a77990: Add QSPI[01] pins, groups and functions pinctrl: renesas: r8a77990: Optimize pinctrl image size for R8A774C0 pinctrl: renesas: r8a77965: Optimize pinctrl image size for R8A774B1 pinctrl: renesas: r8a77951: Optimize pinctrl image size for R8A774E1 pinctrl: renesas: r8a7796: Optimize pinctrl image size for R8A774A1 clk: renesas: r8a774c0: Add RPC clocks clk: renesas: r8a774b1: Add RPC clocks clk: renesas: r8a774a1: Add RPC clocks spi: rpc-if: Fix use-after-free on unbind spi: add Renesas RPC-IF driver spi: spi-mem: Fix a memory leak in spi_mem_dirmap_destroy() spi: spi-mem: Fix spi_mem_dirmap_destroy() kerneldoc spi: spi-mem: Add a new API to support direct mapping spi: spi-mem: Compute length only when needed spi: spi-mem: Fix passing zero to 'PTR_ERR' warning spi: spi-mem: fix reference leak in spi_mem_access_start spi: spi-mem: Split spi_mem_exec_op() code spi: spi-mem: export spi_mem_default_supports_op() spi: spi-mem: Add SPI_MEM_NO_DATA to the spi_mem_data_dir enum memory: renesas-rpc-if: Make rpcif_enable/disable_rpm() as static inline memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe() memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer() memory: add Renesas RPC-IF driver dt-bindings: memory: document Renesas RPC-IF bindings dt-bindings: thermal: rcar-gen3-thermal: Add r8a774e1 support dt-bindings: PCI: rcar-pci-host: Document r8a774e1 bindings dt-bindings: PCI: rcar: Add device tree support for r8a774b1 dt-bindings: timer: renesas: tmu: Document r8a774e1 bindings dt-bindings: pci: rcar-pci-ep: Document missing interrupts property CIP: Bump version suffix to -cip40 after merge from stable arm64: dts: renesas: r8a774c0: Fix MSIOF1 DMA channels CIP: Bump version suffix to -cip39 after merge from stable arm64: dts: renesas: r8a774e1: Add audio support arm64: dts: renesas: r8a774e1: Add missing audio_clk_b CIP: Bump version suffix to -cip38 after merge from stable arm64: dts: renesas: r8a774e1: Add USB-DMAC and HSUSB device nodes arm64: dts: renesas: r8a774e1: Add USB3.0 device nodes arm64: dts: renesas: r8a774e1: Add USB2.0 phy and host (EHCI/OHCI) device nodes dt-bindings: dma: renesas,usb-dmac: Add binding for r8a774e1 dt-bindings: phy: renesas,usb3-phy: Add r8a774e1 support dt-bindings: phy: renesas,usb2-phy: Add r8a774e1 support dt-bindings: sound: renesas, rsnd: Document r8a774e1 bindings arm64: dts: renesas: Add HiHope RZ/G2H board with idk-1110wr display arm64: dts: renesas: r8a774e1: Add PWM device nodes dt-bindings: pwm: renesas,pwm-rcar: Add r8a774e1 support arm64: dts: renesas: r8a774e1-hihope-rzg2h: Setup DU clocks arm64: dts: renesas: r8a774e1: Add LVDS device node drm: rcar-du: lvds: Add support for R8A774E1 SoC dt-bindings: display: renesas,lvds: Document r8a774e1 bindings arm64: dts: renesas: r8a774e1: Populate HDMI encoder node dt-bindings: display: renesas,dw-hdmi: Add r8a774e1 support arm64: dts: renesas: r8a774e1: Populate DU device node drm: rcar-du: Add support for R8A774E1 SoC dt-bindings: display: renesas,du: Document r8a774e1 bindings arm64: dts: renesas: r8a774e1: Add FDP1 device nodes arm64: dts: renesas: r8a774e1: Add VSP instances arm64: dts: renesas: r8a774e1: Add FCPF and FCPV instances arm64: dts: renesas: r8a774e1-hihope-rzg2h-ex: Enable sata misc: pci_endpoint_test: Add Device ID for RZ/G2H PCIe controller arm64: dts: renesas: r8a774e1: Add PCIe EP nodes dt-bindings: pci: rcar-pci-ep: Document r8a774e1 arm64: dts: renesas: r8a774e1: Add SATA controller node arm64: dts: renesas: r8a774e1: Add PCIe device nodes misc: pci_endpoint_test: Add Device ID for RZ/G2M and RZ/G2N PCIe controllers arm64: dts: renesas: r8a774b1: Add PCIe EP nodes arm64: dts: renesas: r8a774a1: Add PCIe EP nodes arm64: dts: renesas: r8a774c0: Add PCIe EP node dt-bindings: pci: rcar-pci-ep: Document r8a774a1 and r8a774b1 ata: sata_rcar: Fix DMA boundary mask arm64: dts: renesas: r8a774b1-hihope-rzg2n-ex: Enable sata arm64: dts: renesas: r8a774b1: Add SATA controller node dt-bindings: ata: sata_rcar: Add r8a774b1 support CIP: Bump version suffix to -cip37 after merge from stable misc: pci_endpoint_test: Add Device ID for RZ/G2E PCIe controller arm64: defconfig: Enable R-Car PCIe endpoint driver PCI: rcar: Add endpoint mode support dt-bindings: PCI: rcar: Add bindings for R-Car PCIe endpoint controller PCI: rcar: Fix calculating mask for PCIEPAMR register PCI: rcar: Move shareable code to a common file arm64: defconfig: Enable CONFIG_PCIE_RCAR_HOST PCI: rcar: Rename pcie-rcar.c to pcie-rcar-host.c PCI: endpoint: functions/pci-epf-test: Print throughput information PCI: endpoint: Add support to handle multiple base for mapping outbound memory PCI: endpoint: Pass page size as argument to pci_epc_mem_init() PCI: endpoint: Fix ->set_msix() to take BIR and offset as arguments PCI: pci-epf-test: Add support to defer core initialization PCI: endpoint: Add notification for core init completion PCI: endpoint: Add core init notifying feature PCI: endpoint: Assign function number for each PF in EPC core PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex PCI: endpoint: Replace spinlock with mutex PCI: endpoint: Use notification chain mechanism to notify EPC events to EPF tools: PCI: Fix fd leakage tools: PCI: Exit with error code when test fails PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address PCI: endpoint: Fix clearing start entry in configfs PCI: endpoint: Cast the page number to phys_addr_t PCI: endpoint: Clear BAR before freeing its space PCI: endpoint: Skip odd BAR when skipping 64bit BAR PCI: endpoint: Allocate enough space for fixed size BAR PCI: endpoint: Set endpoint controller pointer to NULL PCI: endpoint: Add support to specify alignment for buffers allocated to BARs PCI: endpoint: Fix a potential NULL pointer dereference PCI: endpoint: Remove features member in struct pci_epc PCI: designware-plat: Remove setting epc->features in Designware plat EP driver PCI: rockchip: Remove pci_epf_linkup() from Rockchip EP driver PCI: cadence: Remove pci_epf_linkup() from Cadence EP driver PCI: pci-epf-test: Use pci_epc_get_features() to get EPC features PCI: pci-epf-test: Do not allocate next BARs memory if current BAR is 64Bit PCI: pci-epf-test: Remove setting epf_bar flags in function driver PCI: endpoint: Fix pci_epf_alloc_space() to set correct MEM TYPE flags PCI: endpoint: Add helper to get first unreserved BAR PCI: cadence: Populate ->get_features() cdns_pcie_epc_ops PCI: rockchip: Populate ->get_features() dw_pcie_ep_ops PCI: pci-dra7xx: Populate ->get_features() dw_pcie_ep_ops PCI: designware-plat: Populate ->get_features() dw_pcie_ep_ops PCI: dwc: Add ->get_features() callback function to dw_pcie_ep_ops PCI: endpoint: Add new pci_epc_ops to get EPC features CIP: Bump version suffix to -cip36 after merge from stable with ravb fix Revert "ravb: Fixed to be able to unload modules" CIP: Bump version suffix to -cip35 after merge from stable CIP: Bump version suffix to -cip34 after merge from stable arm64: dts: renesas: Fix SD Card/eMMC interface device node names arm64: dts: renesas: r8a774e1: Add RWDT node dt-bindings: watchdog: renesas,wdt: Document r8a774e1 support arm64: dts: renesas: r8a774e1: Add MSIOF nodes spi: renesas,sh-msiof: Add r8a774e1 support arm64: dts: renesas: r8a774e1: Add I2C and IIC-DVFS support dt-bindings: i2c: renesas,iic: Document r8a774e1 support dt-bindings: i2c: renesas,i2c: Document r8a774e1 support arm64: dts: renesas: r8a774e1: Add SDHI nodes mmc: renesas_sdhi_internal_dmac: Add r8a774e1 support arm64: dts: renesas: r8a774e1: Add SCIF and HSCIF nodes arm64: dts: renesas: r8a774e1: Add CAN[FD] support can: rcar_can: Remove unused platform data support arm64: dts: renesas: r8a774e1: Add TMU device nodes arm64: dts: renesas: r8a774e1: Add CMT device nodes arm64: dts: renesas: r8a774e1: Add RZ/G2H thermal support thermal: rcar_gen3_thermal: Add r8a774e1 support thermal/drivers/rcar_gen3: Fix undefined temperature if negative thermal: rcar_gen3_thermal: Generate interrupt when temperature changes thermal: rcar_gen3_thermal: Remove temperature bound arm64: dts: renesas: r8a774e1: Add operating points arm64: dts: renesas: r8a774e1: Add Ethernet AVB node arm64: dts: renesas: r8a774e1: Add GPIO device nodes arm64: dts: renesas: r8a774e1: Add SYS-DMAC device nodes dt-bindings: dma: renesas,rcar-dmac: Document R8A774E1 bindings arm64: dts: renesas: r8a774e1: Add IPMMU device nodes iommu/ipmmu-vmsa: Hook up R8A774E1 DT matching code dt-bindings: iommu: renesas,ipmmu-vmsa: Add r8a774e1 support arm64: dts: renesas: Add HiHope RZ/G2H sub board support arm64: dts: renesas: Add HiHope RZ/G2H main board support dt-bindings: arm: renesas: Add HopeRun RZ/G2H boards arm64: dts: renesas: Initial r8a774e1 SoC device tree pinctrl: sh-pfc: pfc-r8a77951: Add R8A774E1 PFC support dt-bindings: pinctrl: sh-pfc: Document r8a774e1 PFC support pinctrl: sh-pfc: Split R-Car H3 support in two independent drivers pinctrl: sh-pfc: pfc-r8a7795: Fix typo in pinmux macro for SCL3 pinctrl: sh-pfc: pfc-r8a7795-es1: Fix typo in pinmux macro for SCL3 pinctrl: sh-pfc: r8a7795: Use new macros for non-GPIO pins pinctrl: sh-pfc: r8a7795-es1: Use new macros for non-GPIO pins pinctrl: sh-pfc: r8a7795: Add TPU pins, groups and functions pinctrl: sh-pfc: r8a7795-es1: Add TPU pins, groups and functions pinctrl: sh-pfc: rcar-gen3: Rename RTS{0,1,3,4}# pin function definitions pinctrl: sh-pfc: rcar-gen3: Retain TDSELCTRL register across suspend/resume pinctrl: sh-pfc: r8a7795: Deduplicate VIN5 pin definitions pinctrl: sh-pfc: r8a7795: Add I2C{0,3,5} pins, groups and functions pinctrl: sh-pfc: r8a7795-es1: Add I2C{0,3,5} pins, groups and functions pinctrl: sh-pfc: r8a7795: Fix VIN versioned groups pinctrl: sh-pfc: r8a77965: Fix DU_DOTCLKIN3 drive/bias control arm64: defconfig: Enable R8A774E1 SoC clk: renesas: cpg-mssr: Add r8a774e1 support dt-bindings: clock: renesas,cpg-mssr: Document r8a774e1 clk: renesas: rzg2: Mark RWDT clocks as critical clk: renesas: cpg-mssr: Mark clocks as critical only if on at boot clk: renesas: rcar-gen3: Allow changing the RPC[D2] clocks clk: renesas: Add r8a774e1 CPG Core Clock Definitions clk: renesas: rcar-gen3: Add RPC clocks soc: renesas: rcar-rst: Add support for RZ/G2H dt-bindings: reset: rcar-rst: Document r8a774e1 reset module soc: renesas: Identify RZ/G2H dt-bindings: arm: renesas: Document RZ/G2H SoC DT bindings soc: renesas: Add Renesas R8A774E1 config option soc: renesas: rcar-sysc: Add r8a774e1 support dt-bindings: power: renesas,rcar-sysc: Document r8a774e1 SYSC binding dt-bindings: power: Add r8a774e1 SYSC power domain definitions arm64: dts: renesas: r8a774a1: Remove audio port node arm64: dts: renesas: Add HiHope RZ/G2N Rev2.0/3.0/4.0 board with idk-1110wr display arm64: dts: renesas: Add HiHope RZ/G2N Rev.3.0/4.0 sub board support arm64: dts: renesas: Add HiHope RZ/G2N Rev.3.0/4.0 main board support arm64: dts: renesas: Add HiHope RZ/G2M Rev.3.0/4.0 board with idk-1110wr display arm64: dts: renesas: hihope-rzg2-ex: Separate out lvds specific nodes into common file arm64: dts: renesas: Add HiHope RZ/G2M Rev.3.0/4.0 sub board support arm64: dts: renesas: Add HiHope RZ/G2M Rev.3.0/4.0 main board support arm64: dts: renesas: Add HiHope RZ/G2M[N] Rev.3.0/4.0 specific into common file arm64: dts: renesas: hihope-common: Separate out Rev.2.0 specific into hihope-rev2.dtsi file arm64: dts: renesas: r8a774b1-hihope-rzg2n[-ex]: Rename HiHope RZ/G2N boards arm64: dts: renesas: r8a774a1-hihope-rzg2m[-ex/-ex-idk-1110wr]: Rename HiHope RZ/G2M boards CIP: Bump version suffix to -cip33 after merge from stable drm: atomic helper: fix W=1 warnings drm: Add drm_atomic_get_old/new_private_obj_state drm: of: Fix linking when CONFIG_OF is not set CIP: Bump version suffix to -cip32 after merge from stable drm: of: Fix double-free bug CIP: Bump version suffix to -cip31 after merge from stable arm64: dts: renesas: Add EK874 board with idk-2121wr display support dt-bindings: display: Add idk-2121wr binding arm64: dts: renesas: rzg2: Add reset control properties for display arm64: dts: renesas: r8a774c0: Point LVDS0 to its companion LVDS1 drm: rcar-du: lvds: Allow for even and odd pixels swap drm: rcar-du: lvds: Get dual link configuration from DT drm: of: Add drm_of_lvds_get_dual_link_pixel_order drm: rcar-du: lvds: Improve identification of panels drm: rcar-du: lvds: Get mode from state drm: Add atomic variants for bridge enable/disable drm: Add drm_atomic_get_(old|new)_connector_for_encoder() helpers drm: rcar_lvds: Fix dual link mode operations drm: rcar-du: Skip LVDS1 output on Gen3 when using dual-link LVDS mode drm: rcar-du: lvds: Add support for dual-link mode dt-bindings: display: renesas: lvds: Add renesas,companion property drm: bridge: Add dual_link field to the drm_bridge_timings structure drm: rcar-du: lvds: Remove LVDS double-enable checks arm64: defconfig: Enable additional support for Renesas platforms ASoC: rsnd: fixup SSI clock during suspend/resume modes CIP: Bump version suffix to -cip30 after merge from stable CIP: Bump version suffix to -cip29 after merge from stable CIP: Bump version suffix to -cip28 after merge from stable CIP: Bump version suffix to -cip27 after merge from stable CIP: Bump version suffix to -cip26 after merge from stable CIP: Bump version suffix to -cip25 after merge from stable arm64: dts: renesas: Add HiHope RZ/G2M board with idk-1110wr display dt-bindings: display: Add idk-1110wr binding CIP: Bump version suffix to -cip24 after merge from stable CIP: Bump version suffix to -cip23 after merge from stable CIP: Bump version suffix to -cip22 after merge from stable CIP: Bump version suffix to -cip21 after merge from stable arm64: dts: renesas: cat874: Enable usb role switch support arm64: dts: renesas: cat874: Enable USB3.0 host/peripheral device node usb: gadget: udc: renesas_usb3: Enhance role switch support usb: typec: fix an IS_ERR() vs NULL bug in hd3ss3220_probe() usb: typec: hd3ss3220: hd3ss3220_probe() warn: passing zero to 'PTR_ERR' usb: typec: add dependency for TYPEC_HD3SS3220 usb: typec: hd3ss3220_irq() can be static usb: typec: driver for TI HD3SS3220 USB Type-C DRP port controller dt-bindings: usb: renesas_usb3: Document usb role switch support dt-bindings: usb: hd3ss3220 device tree binding document usb: roles: Add fwnode_usb_role_switch_get() function device connection: Add fwnode_connection_find_match() usb: roles: Introduce stubs for the exiting functions in role.h device connection: Find connections also by checking the references device property: Introduce fwnode_find_reference() device connection: Find device connections also from device graphs device connection: Prepare support for firmware described connections usb: typec: Find the ports by also matching against the device node usb: roles: Find the muxes by also matching against the device node usb: typec: mux: Fix unsigned comparison with less than zero usb: typec: mux: Find the muxes by also matching against the device node device connection: Add fwnode member to struct device_connection CIP: Bump version suffix to -cip20 after merge from stable arm64: dts: renesas: r8a774b1: Add USB3.0 device nodes arm64: dts: renesas: r8a774b1: Add USB-DMAC and HSUSB device nodes arm64: dts: renesas: r8a774b1: Add USB2.0 phy and host (EHCI/OHCI) device nodes dt-bindings: usb: renesas_usb3: Document r8a774b1 support dt-bindings: usb: renesas_gen3: Rename bindings documentation file to reflect IP block dt-bindings: usb-xhci: Add r8a774b1 support dt-bindings: rcar-gen3-phy-usb3: Add r8a774b1 support dt-bindings: usb: renesas_usbhs: Add r8a774b1 support dt-bindings: usb: renesas_usbhs: Rename bindings documentation file dt-bindings: dmaengine: usb-dmac: Add binding for r8a774b1 dt-bindings: rcar-gen3-phy-usb2: Add r8a774b1 support arm64: dts: renesas: r8a774b1: Add Sound and Audio DMAC device nodes ASoC: rsnd: Document r8a774b1 bindings arm64: dts: renesas: r8a774a1: Remove audio port node arm64: dts: renesas: Add support for Advantech idk-1110wr LVDS panel arm64: dts: renesas: hihope-rzg2-ex: Add LVDS support drm: rcar-du: lvds: Add r8a774b1 support arm64: dts: renesas: hihope-rzg2-ex: Enable backlight arm64: dts: renesas: r8a774b1: Add PWM device nodes arm64: dts: renesas: r8a774b1: Add FDP1 device nodes arm64: dts: renesas: r8a774b1-hihope-rzg2n: Add display clock properties arm64: dts: renesas: r8a774b1: Add HDMI encoder instance arm64: dts: renesas: r8a774b1: Add DU device to DT drm: rcar-du: Add R8A774B1 support arm64: dts: renesas: hihope-common: Move du clk properties out of common dtsi arm64: dts: renesas: r8a774b1: Connect Ethernet-AVB to IPMMU-DS0 arm64: dts: renesas: r8a774b1: Tie SYS-DMAC to IPMMU-DS0/1 arm64: dts: renesas: r8a774b1: Add VSP instances arm64: dts: renesas: r8a774b1: Add FCPF and FCPV instances arm64: dts: renesas: r8a774b1: Add IPMMU device nodes iommu/ipmmu-vmsa: Hook up r8a774b1 DT matching code dt-bindings: iommu: ipmmu-vmsa: Add r8a774b1 support arm64: dts: renesas: r8a774b1: Add CAN and CAN FD support dt-bindings: can: rcar_canfd: document r8a774b1 support dt-bindings: can: rcar_can: document r8a774b1 support arm64: dts: renesas: r8a774b1: Add TMU device nodes clk: renesas: r8a774b1: Add TMU clock dt-bindings: timer: renesas: tmu: Document r8a774b1 bindings arm64: dts: renesas: r8a774b1: Add CMT device nodes dt-bindings: timer: renesas, cmt: Document r8a774b1 CMT support arm64: dts: renesas: r8a774b1: Add RZ/G2N thermal support thermal: rcar_gen3_thermal: Add r8a774b1 support dt-bindings: thermal: rcar-gen3-thermal: Add r8a774b1 support arm64: dts: renesas: r8a774b1: Add OPPs table for cpu devices arm64: dts: renesas: r8a774b1: Add I2C and IIC-DVFS support dt-bindings: i2c: sh_mobile: Add r8a774b1 support dt-bindings: i2c: sh_mobile: Rename bindings documentation file dt-bindings: i2c: rcar: Add r8a774b1 support dt-bindings: i2c: rcar: Rename bindings documentation file arm64: dts: renesas: r8a774b1-hihope-rzg2n: Enable HS400 mode arm64: dts: renesas: r8a774b1: Add SDHI support mmc: renesas_sdhi_internal_dmac: Add r8a774b1 support dt-bindings: mmc: renesas_sdhi: Add r8a774b1 support arm64: dts: renesas: r8a774b1: Add INTC-EX device node arm64: dts: renesas: hihope-rzg2-ex: Let the board specific DT decide about pciec1 arm64: dts: renesas: r8a774b1: Add PCIe device nodes arm64: dts: renesas: r8a774b1: Add all MSIOF nodes arm64: dts: renesas: r8a774b1: Add RWDT node dt-bindings: watchdog: renesas-wdt: Document r8a774b1 support dt-bindings: watchdog: Rename bindings documentation file dt-bindings: spi: sh-msiof: Add r8a774b1 support arm64: dts: renesas: Add HiHope RZ/G2N sub board support arm64: dts: renesas: r8a774b1: Add Ethernet AVB node dt-bindings: net: ravb: Add support for r8a774b1 SoC arm64: dts: renesas: r8a774b1: Add GPIO device nodes dt-bindings: gpio: rcar: Add DT binding for r8a774b1 arm64: dts: renesas: r8a774b1: Add SCIF and HSCIF nodes arm64: dts: renesas: r8a774b1: Add SYS-DMAC device nodes dt-bindings: dmaengine: rcar-dmac: Document R8A774B1 bindings CIP: Bump version suffix to -cip19 after merge from stable arm64: dts: renesas: r8a774c0: cat874: Sort nodes arm64: dts: renesas: Use ip=on for bootargs arm64: dts: renesas: r8a774c0: cat874: Add definition for 12V regulator arm64: dts: renesas: Update 'vsps' properties for readability arm64: dts: renesas: r8a774c0: Fix register range of display node arm64: dts: renesas: r8a774c0: Add missing assigned-clocks for CAN[01] arm64: dts: renesas: r8a774c0: Clean up CPU compatibles arm64: dts: renesas: r8a774c0: Add dynamic power coefficient arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA thermal: rcar_thermal: update calculation formula for R-Car Gen3 SoCs dt-bindings: can: rcar_can: Complete documentation for RZ/G2[EM] dt-bindings: can: rcar_can: document r8a77965 support CIP: Bump version suffix to -cip18 after merge from stable CIP: Bump version suffix to -cip17 after merge from stable arm64: defconfig: Enable R8A774B1 SoC arm64: dts: renesas: Add HiHope RZ/G2N main board support arm64: dts: renesas: Initial r8a774b1 SoC device tree dt-bindings: serial: sh-sci: Document r8a774b1 bindings pinctrl: sh-pfc: pfc-r8a77965: Fix typo in pinmux macro for SCL3 pinctrl: sh-pfc: r8a77965: Add R8A774B1 PFC support dt-bindings: pinctrl: sh-pfc: Document r8a774b1 PFC support pinctrl: sh-pfc: r8a77965: Use new macros for non-GPIO pins pinctrl: sh-pfc: r8a77965: Add TPU pins, groups and functions pinctrl: sh-pfc: r8a77965: Add I2C{0,3,5} pins, groups and functions pinctrl: sh-pfc: r8a77965: Add DRIF pins, groups and functions pinctrl: sh-pfc: r8a77965: Add TMU pins, groups and functions pinctrl: sh-pfc: r8a77965: Replace DU_DOTCLKIN2 by DU_DOTCLKIN3 pinctrl: sh-pfc: r8a77965: Add CAN FD pins, groups and functions pinctrl: sh-pfc: r8a77965: Add CAN pins, groups and functions pinctrl: sh-pfc: r8a77965: Add VIN[4|5] groups/functions pinctrl: sh-pfc: r8a77965: Add Audio SSI pin support pinctrl: sh-pfc: r8a77965: Add Audio clock pin support pinctrl: sh-pfc: r8a77965: Add SATA pins, groups and functions clk: renesas: cpg-mssr: Add r8a774b1 support dt-bindings: clock: renesas: cpg-mssr: Document r8a774b1 binding dt-bindings: clk: Add r8a774b1 CPG Core Clock Definitions soc: renesas: rcar-rst: Add support for RZ/G2N dt-bindings: reset: rcar-rst: Document r8a774b1 reset module soc: renesas: rcar-sysc: Add r8a774b1 support soc: renesas: r8a774c0-sysc: Fix power request conflicts soc: renesas: r8a77990-sysc: Fix power request conflicts soc: renesas: r8a77980-sysc: Fix power request conflicts soc: renesas: r8a77970-sysc: Fix power request conflicts soc: renesas: r8a77965-sysc: Fix power request conflicts soc: renesas: r8a7796-sysc: Fix power request conflicts soc: renesas: r8a7795-sysc: Fix power request conflicts soc: renesas: rcar-sysc: Prepare for fixing power request conflicts dt-bindings: power: rcar-sysc: Document r8a774b1 sysc dt-bindings: power: Add r8a774b1 SYSC power domain definitions soc: renesas: Identify RZ/G2N soc: renesas: Add Renesas R8A774B1 config option dt-bindings: arm: renesas: Add HopeRun RZ/G2N boards dt-bindings: arm: renesas: Document RZ/G2N SoC DT bindings CIP: Bump version suffix to -cip16 after merge from stable CIP: Bump version suffix to -cip15 after merge from stable gitlab-ci: Use external linux-cip-pipelines repository to define CI arm64: dts: renesas: r8a774a1: Add SSIU support for sound ASoC: rsnd: add SSIU BUSIF support ASoC: rsnd: add .get_id/.get_id_sub ASoC: rsnd: move .get_status under rsnd_mod_ops ASoC: rsnd: merge .nolock_start and .prepare ASoC: rsnd: ssiu: Support to init different BUSIF instance ASoC: rsnd: ssiu: Support BUSIF other than BUSIF0 ASoc: rsnd: dma: Calculate PDMACHCRE with consider of BUSIF ASoc: rsnd: dma: Calculate dma address with consider of BUSIF ASoC: rsnd: ssi: Check runtime channel number rather than hw_params ASoC: rsnd: ssi: Fix issue in dma data address assignment ASoC: rsnd: remove is_play parameter from hw_rule function ASoC: rsnd: add support for 8 bit S8 format ASoC: rsnd: add support for 16/24 bit slot widths ASoC: rsnd: add warning message to rsnd_kctrl_accept_runtime() CIP: Bump version suffix to -cip14 after merge from stable gitlab-ci: Remove test timeout gitlab-ci: Remove unofficial build configurations gitlab-ci: Split tests into separate jobs CIP: Bump version suffix to -cip13 after merge from stable arm64: dts: renesas: hihope-rzg2-ex: Enable CAN interfaces arm64: dts: renesas: r8a774a1: Add CANFD support arm64: dts: renesas: r8a774a1: Add missing assigned-clocks for CAN[01] dt-bindings: can: rcar_canfd: document r8a774a1 support arm64: dts: renesas: hihope-common: Add HDMI audio support arm64: dts: renesas: r8a774a1: Use extended audio dmac registers arm64: dts: renesas: cat874: Add BT support arm64: dts: renesas: cat874: Add WLAN support arm64: dts: renesas: hihope-common: Add WLAN support arm64: dts: renesas: hihope-common: Add BT support arm64: dts: renesas: hihope-common: Add PCA9654 I/O expander CIP: Bump version suffix to -cip12 after merge from stable arm64: dts: renesas: r8a774c0: Add CANFD support dt-bindings: can: rcar_canfd: document r8a774c0 support arm64: dts: renesas: cat874: Add HDMI audio arm64: dts: renesas: cat874: Add HDMI video support arm64: defconfig: Enable TDA19988 arm64: dts: renesas: r8a774c0: Add display output support media: use strscpy() instead of strlcpy() drm: rcar-du: Replace EXT_CTRL_REGS feature flag with generation check drm: rcar-du: Disable unused DPAD outputs drm/rcar-du: Use drm_fbdev_generic_setup() drm: rcar-du: Reject modes that fail CRTC timing requirements drm: rcar-du: Fix external clock error checks drm: rcar-du: Fix vblank initialization drm: rcar-du: Fix the return value in case of error in 'rcar_du_crtc_set_crc_source()' drm/rcar-du: Replace drm_dev_unref with drm_dev_put drm: rcar-du: Enable configurable DPAD0 routing on Gen3 drm: rcar-du: Improve non-DPLL clock selection drm: rcar-du: lvds: Adjust operating frequency for D3 and E3 drm: rcar-du: lvds: Fix post-DLL divider calculation drm: rcar-du: Turn LVDS clock output on/off for DPAD0 output on D3/E3 drm: rcar-du: lvds: Add API to enable/disable clock output drm: rcar-du: lvds: Don't fail probe if output is not connected on D3/E3 drm: rcar-du: Simplify encoder registration drm: rcar-du: Move CRTC outputs bitmask to private CRTC state drm: rcar-du: lvds: add R8A774C0 support drm: rcar-du: Add r8a774c0 device support drm: rcar-du: Use LVDS PLL clock as dot clock when possible drm: rcar-du: Perform the initial CRTC setup from rcar_du_crtc_get() drm: rcar-du: lvds: D3/E3 support dt-bindings: display: renesas: lvds: Document r8a774c0 bindings dt-bindings: display: renesas: lvds: Add EXTAL and DU_DOTCLKIN clocks dt-bindings: display: renesas: du: Document r8a774c0 bindings media: dt-bindings: media: renesas-fcp: Add RZ/G2 support media: vsp1: Add RZ/G support CIP: Bump version suffix to -cip11 after merge from stable gitlab-ci: Always store job artifacts gitlab-ci: Increase test timeout to 60 minutes arm64: dts: renesas: hihope-common: Add HDMI support arm64: dts: renesas: r8a774a1: Add HDMI encoder instance arm64: dts: renesas: r8a774a1: Connect Ethernet-AVB to IPMMU-DS0 arm64: dts: renesas: r8a774a1: Tie Audio-DMAC to IPMMU-MP arm64: dts: renesas: r8a774a1: Tie SYS-DMAC to IPMMU-DS0/1 arm64: dts: renesas: r8a774a1: Add FDP1 instance arm64: dts: renesas: r8a774a1: Add DU device to DT arm64: dts: renesas: r8a774a1: Add VSP instances arm64: dts: renesas: hihope-rzg2-ex: Enable PCIe support arm64: dts: renesas: hihope-common: Declare pcie bus clock arm64: dts: renesas: r8a774a1: Add PCIe device nodes drm: rcar-du: Update framebuffer pitch and alignment limits for Gen3 drm: rcar-du: Store V4L2 fourcc in rcar_du_format_info structure drm: rcar-du: Add support for missing pixel formats drm: rcar-du: Rename and document dpll_ch field drm: rcar-du: Rework clock configuration based on hardware limits drm: rcar-du: Support interlaced video output through vsp1 drm: rcar-du: Don't use TV sync mode when not supported by the hardware drm: rcar-du: Cache DSYSR value to ensure known initial value drm: rcar-du: Add interlaced feature flag drm: rcar-du: Refactor Feature and Quirk definitions drm: rcar-du: dw-hdmi: Reject modes with a too high clock frequency drm: rcar-du: lvds: Add r8a774a1 support drm: rcar-du: Add R8A774A1 support PCI: rcar: Do not shadow the 'irq' variable PCI: rcar: Clean up debug messages PCI: rcar: Replace various variable types with unsigned ones for register values PCI: rcar: Replace unsigned long with u32/unsigned int in register accessors dt-bindings: display: renesas: Add r8a774a1 support dt-bindings: display: renesas: lvds: Document r8a774a1 bindings dt-bindings: display: renesas: du: Document the r8a774a1 bindings dt-bindings: PCI: rcar: Add device tree support for r8a774a1 CIP: Bump version suffix to -cip10 after merge from stable arm64: dts: renesas: hihope-common: Enable USB3.0 arm64: dts: renesas: hihope-common: Add USB 2.0 support arm64: dts: renesas: r8a774a1: Fix USB 2.0 clocks phy: renesas: rcar-gen3-usb2: fix imbalance powered flag arm64: dts: renesas: hihope-common: Remove "label" from LEDs arm64: dts: renesas: hihope-common: Add LEDs support arm64: dts: renesas: hihope-common: Add uSD and eMMC mmc: renesas_sdhi: prevent overflow for max_req_size mmc: tmio: introduce macro for max block size mmc: renesas_sdhi: Change HW adjustment register according to speed mode arm64: dts: renesas: r8a774a1: Add dynamic power coefficient arm64: dts: renesas: r8a774a1: Create thermal zone to support IPA arm64: dts: renesas: r8a774a1: Add CPU capacity-dmips-mhz arm64: dts: renesas: r8a774a1: Add CPU topology on r8a774a1 SoC arm64: dts: renesas: r8a774a1: Add operating points thermal: rcar_gen3_thermal: Update temperature conversion method thermal: rcar_gen3_thermal: Update calculation formula of IRQTEMP thermal: rcar_gen3_thermal: Update value of Tj_1 thermal: rcar_gen3_thermal: Fix to show correct trip points number thermal: rcar_gen3_thermal: fix interrupt type thermal: rcar_gen3_thermal: Fix init value of IRQCTL register thermal: rcar_gen3_thermal: Register hwmon sysfs interface arm64: dts: renesas: r8a774a1: Add TMU device nodes clk: renesas: r8a774a1: Add TMU clock arm64: dts: renesas: r8a774a1: Add CMT device nodes arm64: dts: renesas: hihope-common: Add RWDT support watchdog: renesas_wdt: Add a few cycles delay watchdog: renesas_wdt: Use 'dev' instead of dereferencing it repeatedly watchdog: renesas_wdt: drop superfluous glob pattern watchdog: renesas_wdt: don't keep timer value during suspend/resume watchdog: renesas_wdt: Fix typos watchdog: renesas_wdt: stop when unregistering arm64: dts: renesas: Add HiHope RZ/G2M sub board support arm64: dts: renesas: hihope-common: Add pincontrol support to scif2/scif clock arm64: dts: renesas: Add HiHope RZ/G2M main board support dt-bindings: Add vendor prefix for HopeRun dt-bindings: arm: renesas: Add HopeRun RZ/G2[M] boards gitlab-ci: Start testing the r8a774a1-hihope-rzg2m-ex device arm64: dts: renesas: r8a774a1: Add clkp2 clock to CAN nodes arm64: dts: Remove inconsistent use of 'arm,armv8' compatible string arm64: dts: renesas: r8a774a1: Fix hsusb reg size arm64: dts: renesas: r8a774a1: Enable DMA for SCIF2 arm64: dts: renesas: r8a774a1: Replace clock magic numbers arm64: dts: renesas: r8a774a1: Replace power magic numbers arm64: dts: renesas: r8a774a1: Add CAN nodes arm64: dts: renesas: Remove unneeded status from thermal nodes arm64: dts: renesas: Fix whitespace around assignments arm64: dts: renesas: r8a774a1: Add USB3.0 device nodes arm64: dts: renesas: r8a774a1: Add USB-DMAC and HSUSB device nodes arm64: dts: renesas: r8a774a1: Add USB2.0 phy and host(EHCI/OHCI) device nodes arm64: dts: renesas: r8a774a1: Add FCPF and FCPV instances arm64: dts: renesas: r8a774a1: Add audio support arm64: dts: renesas: r8a774a1: Add PWM device nodes arm64: dts: renesas: r8a774a1: Add Cortex-A53 CPU cores arm64: dts: renesas: r8a774a1: Add all MSIOF nodes arm64: dts: renesas: r8a774a1: Add IPMMU device nodes arm64: dts: renesas: r8a774a1: Add RZ/G2M thermal support arm64: dts: renesas: r8a774a1: Add I2C and IIC-DVFS support arm64: dts: renesas: r8a774a1: Add SDHI nodes arm64: dts: renesas: r8a774a1: Add GPIO device nodes arm64: dts: renesas: r8a774a1: Add pinctrl device node arm64: dts: renesas: r8a774a1: Add RWDT node arm64: dts: renesas: r8a774a1: Add Ethernet AVB node arm64: dts: renesas: r8a774a1: Add INTC-EX device node arm64: dts: renesas: r8a774a1: Add SCIF and HSCIF nodes arm64: dts: renesas: r8a774a1: Add SYS-DMAC controller nodes arm64: dts: renesas: Initial r8a774a1 SoC device tree mmc: renesas_sdhi_internal_dmac: set scatter/gather max segment size ravb: Avoid unsupported internal delay mode for R-Car E3/D3 ravb: remove tx buffer addr 4byte alilgnment restriction for R-Car Gen3 spi: sh-msiof: fix deferred probing dmaengine: rcar-dmac: Update copyright information dmaengine: rcar-dmac: set scatter/gather max segment size serial: sh-sci: Fix fallback to PIO in sci_dma_rx_complete() serial: sh-sci: Extract sci_dma_rx_reenable_irq() serial: sh-sci: Extract sci_dma_rx_chan_invalidate() serial: sh-sci: Fix crash in rx_timer_fn() on PIO fallback soc: renesas: rcar-sysc: Fix power domain control after system resume soc: renesas: rcar-sysc: Merge PM Domain registration and linking soc: renesas: rcar-sysc: Remove rcar_sysc_power_{down,up}() helpers clk: renesas: cpg-mssr: Remove error messages on out-of-memory conditions clk: renesas: cpg-mssr: Use genpd of_node instead of local copy gpio: rcar: Pedantic formatting gpio: rcar: select General Output Register to set output states gpio: rcar: reference device instead of platform device thermal: rcar_gen3_thermal: Add r8a774a1 support dt-bindings: dmaengine: usb-dmac: Add binding for r8a774a1 dt-bindings: thermal: rcar-gen3-thermal: Add r8a774a1 support dt-bindings: usb: renesas_usbhs: Add r8a774a1 support dt-bindings: usb-xhci: Add r8a774c0 support dt-bindings: usb-xhci: Add r8a774a1 support dt-bindings: rcar-gen3-phy-usb3: Add r8a774a1 support dt-bindings: can: rcar_can: Add r8a774c0 support dt-bindings: can: rcar_can: Fix RZ/G2 CAN clocks dt-bindings: can: rcar_can: Add r8a774a1 support pinctrl: sh-pfc: sh73a0: Use new macros for non-GPIO pins pinctrl: sh-pfc: sh73a0: Add missing TO pin to tpu4_to3 group pinctrl: sh-pfc: sh73a0: Fix fsic_spdif pin groups pinctrl: sh-pfc: r8a7791: Fix scifb2_data_c pin group pinctrl: sh-pfc: r8a7791: Fix VIN1 versioned groups pinctrl: sh-pfc: r8a7791: Remove bogus marks from vin1_b_data18 group pinctrl: sh-pfc: r8a7791: Remove bogus ctrl marks from qspi_data4_b group pinctrl: sh-pfc: r8a77995: Remove unused PINMUX_IPSR_{MSEL2,PHYS}() pinctrl: sh-pfc: r8a7740: Add missing LCD0 marks to lcd0_data24_1 group pinctrl: sh-pfc: r8a7740: Add missing REF125CK pin to gether_gmii group pinctrl: sh-pfc: r8a7796: Remove placeholder I2C pin data pinctrl: sh-pfc: r8a7796: Use new macros for non-GPIO pins pinctrl: sh-pfc: r8a7796: Add TPU pins, groups and functions pinctrl: sh-pfc: r8a77990: Use new macros for non-GPIO pins pinctrl: sh-pfc: Move PIN_NONE to shared header file pinctrl: sh-pfc: Add PORT_GP_27 helper macro pinctrl: sh-pfc: rcar-gen3: Rename SEL_NDFC to SEL_NDF pinctrl: sh-pfc: rcar-gen3: Rename RTS{0,1,3,4}# pin function definitions pinctrl: sh-pfc: r8a77990: Fix MOD_SEL1 bit30 when using SSI_SCK2 and SSI_WS2 pinctrl: sh-pfc: r8a77990: Fix MOD_SEL1 bit31 when using SIM0_D pinctrl: sh-pfc: r8a77990: Fix MOD_SEL0 bit16 when using NFALE and NFRB_N pinctrl: sh-pfc: rcar-gen3: Rename SEL_ADG_{A,B,C} to SEL_ADG{A,B,C} pinctrl: sh-pfc: rcar-gen3: Remove CC5_OSCOUT pin pinctrl: sh-pfc: rcar-gen3: Remove HDMI CEC pins, groups, and functions pinctrl: sh-pfc: Add missing #include <linux/errno.h> pinctrl: sh-pfc: rcar-gen3: Retain TDSELCTRL register across suspend/resume pinctrl: sh-pfc: r8a77990: Move CANFD pin groups and functions pinctrl: sh-pfc: r8a77990: Rename IOCTRLx registers pinctrl: sh-pfc: r8a7796: Move CANFD pin groups and functions pinctrl: sh-pfc: r8a7796: Deduplicate VIN5 pin definitions pinctrl: sh-pfc: r8a7796: Add I2C{0,3,5} pins, groups and functions pinctrl: sh-pfc: r8a7796: Fix VIN versioned groups pinctrl: sh-pfc: Validate pin tables at runtime pinctrl: sh-pfc: Add check for empty pinmux groups/functions pinctrl: sh-pfc: Mark run-time debug code __init pinctrl: sh-pfc: Correct printk level of group reference warning pinctrl: sh-pfc: Add new non-GPIO helper macros pinctrl: sh-pfc: Add SH_PFC_PIN_CFG_PULL_UP_DOWN shorthand pinctrl: sh-pfc: Rename 2-parameter CPU_ALL_PORT() variant pinctrl: sh-pfc: Improve PINMUX_IPSR_PHYS() documentation pinctrl: sh-pfc: Validate enum IDs for regs with variable-width fields pinctrl: sh-pfc: Validate enum IDs for regs with fixed-width fields pinctrl: sh-pfc: Absorb enum IDs in PINMUX_DATA_REG() macro pinctrl: sh-pfc: Absorb enum IDs in PINMUX_CFG_REG_VAR() macro pinctrl: sh-pfc: Absorb enum IDs in PINMUX_CFG_REG() macro pinctrl: sh-pfc: Validate fixed-size field widths at build time pinctrl: sh-pfc: Make pinmux_cfg_reg.var_field_width[] variable-length pinctrl: sh-pfc: Validate pins/marks in pin groups at build time pinctrl: sh-pfc: Add physical pin multiplexing helper macros pinctrl: sh-pfc: Validate pinmux tables at runtime when debugging pinctrl: sh-pfc: Print actual field width for variable-width fields CIP: Bump version suffix to -cip9 after merge from stable staging: m57621-mmc: delete driver from the tree. CIP: Bump version suffix to -cip8 after merge from stable Update to run all CIP arm, arm64 and x86 configs Update CI to use the latest linux-cip-ci containers CIP: Bump version suffix to -cip7 after merge from stable arm64: dts: renesas: r8a774c0: sort subnodes of the soc node arm64: dts: renesas: r8a774c0: Remove invalid compatible value for CSI40 arm64: dts: renesas: r8a774c0: Fix SCIF5 DMA channels arm64: dts: renesas: r8a774c0: Enable DMA for SCIF2 arm64: dts: renesas: r8a774c0-cat874: Add RWDT support arm64: dts: renesas: r8a774c0-cat874: Add LEDs support arm64: dts: renesas: r8a774c0-cat874: add RTC support arm64: defconfig: enable RX-8581 config option rtc: rx8581: Add support for Epson rx8571 RTC dt-bindings: rtc: add rx8571 compatible rtc: nvmem: remove nvmem from struct rtc_device rtc: nvmem: use devm_nvmem_register() arm64: dts: renesas: cat874: Add USB-HOST support phy: renesas: rcar-gen3-usb2: enable/disable independent irqs phy: renesas: rcar-gen3-usb2: Use pdev's device pointer on dev_vdbg() phy: rcar-gen3-usb2: Add support for r8a77470 phy: renesas: rcar-gen3-usb2: follow the hardware manual procedure phy: renesas: rcar-gen3-usb2: add is_otg_channel to use "role" sysfs phy: renesas: rcar-gen3-usb2: change a condition "dr_mode" phy: renesas: rcar-gen3-usb2: add conditions for uses_otg_pins == false phy: renesas: rcar-gen3-usb2: unify OBINTEN handling phy: renesas: rcar-gen3-usb2: Check a property to use otg pins phy: renesas: rcar-gen3-usb2: Rename has_otg_pins to uses_otg_pins phy: renesas: rcar-gen3-usb2: fix vbus_ctrl for role sysfs arm64: dts: renesas: cat875: Add CAN support arm64: dts: renesas: r8a774c0: Add clkp2 clock to CAN nodes arm64: dts: renesas: r8a774c0: Add CAN nodes arm64: dts: renesas: r8a774c0: Fix cpu nodes style arm64: dts: renesas: r8a774c0: Add OPPs table for cpu devices clk: renesas: rcar-gen3: Remove unused variable clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate() return value clk: renesas: rcar-gen3: Correct parent clock of Audio-DMAC clk: renesas: rcar-gen3: Correct parent clock of SYS-DMAC clk: renesas: rcar-gen3: Correct parent clock of HS-USB clk: renesas: rcar-gen3: Correct parent clock of EHCI/OHCI clk: renesas: r8a774c0: Add Z2 clock clk: renesas: rcar-gen3: Support Z and Z2 clocks with high frequency parents math64: New DIV64_U64_ROUND_CLOSEST helper clk: renesas: rcar-gen3: Remove CLK_TYPE_GEN3_Z2 clk: renesas: rcar-gen3: Parameterise Z and Z2 clock offset clk: renesas: rcar-gen3: Parameterise Z and Z2 clock fixed divisor clk: renesas: rcar-gen3: Pass name/offset to cpg_sd_clk_register() clk: renesas: r8a774a1: Fix LAST_DT_CORE_CLK clk: renesas: rcar-gen3: Add spinlock clk: renesas: rcar-gen3: Factor out cpg_reg_modify() clk: renesas: r8a774a1: Add missing CANFD clock clk: renesas: Remove usage of CLK_IS_BASIC clk: renesas: rcar-gen3: Add HS400 quirk for SD clock clk: renesas: rcar-gen3: Add documentation for SD clocks clk: renesas: rcar-gen3: Set state when registering SD clocks clk: renesas: r8a774a1: Add CPEX clock CIP: Bump version suffix to -cip6 after merge from stable Add gitlab-ci.yaml CIP: Bump version suffix to -cip5 after merge from stable CIP: Bump version suffix to -cip4 after merge from stable CIP: Bump version suffix to -cip3 after merge from stable dt-bindings: Add vendor prefix for Silicon Linux. CIP: Bump version suffix to -cip2 after Renesas patches arm64: defconfig: Enable R-Car thermal driver arm64: dts: renesas: r8a774c0: Add thermal support dt-bindings: thermal: rcar-thermal: add R8A774C0 support thermal: rcar_thermal: add R8A774C0 support arm64: dts: renesas: r8a774c0: Connect RZ/G2E Audio-DMAC to IPMMU arm64: dts: renesas: r8a774c0: Connect RZ/G2E AVB to IPMMU arm64: dts: renesas: r8a774c0: Connect RZ/G2E SYS-DMAC to IPMMU arm64: dts: renesas: r8a774c0: Add PWM support dt-bindings: pwm: rcar: Add r8a774c0 support dt-bindings: pwm: rcar: Add r8a774a1 support arm64: dts: renesas: r8a774c0: Add audio support ASoC: rsnd: Add r8a774c0 support ASoC: rsnd: Add r8a774a1 support arm64: dts: renesas: r8a774c0: Add VIN and CSI-2 device nodes media: dt-bindings: rcar-csi2: Add r8a774c0 media: dt-bindings: rcar-vin: Add R8A774C0 support media: rcar-csi2: Add support for RZ/G2E media: rcar-csi2: Fix PHTW table values for E3/V3M media: rcar-csi2: Handle per-SoC number of channels media: rcar: rcar-csi2: Update V3M/E3 PHTW tables media: rcar-csi2: Add R8A77990 support media: rcar-vin: Add support for RZ/G2E media: rcar-vin: Add support for R-Car R8A77990 arm64: dts: renesas: r8a774c0: Add IPMMU device nodes dt-bindings: iommu: ipmmu-vmsa: Add r8a774c0 support dt-bindings: iommu: ipmmu-vmsa: Add r8a774a1 support iommu/ipmmu-vmsa: Hook up r8a774c0 DT matching code iommu/ipmmu-vmsa: Modify ipmmu_slave_whitelist() to check SoC revisions iommu/ipmmu-vmsa: Hook up R8A774A1 DT maching code arm64: dts: renesas: r8a774c0: Add USB3.0 device nodes usb: gadget: udc: renesas_usb3: Add bindings for r8a774c0 usb: gadget: udc: renesas_usb3: Add r8a774a1 support usb: gadget: udc: renesas_usb3: add support for r8a774c0 usb: gadget: udc: renesas_usb3: add a safety connection way for forced_b_device usb: gadget: udc: renesas_usb3: add support for r8a77990 arm64: dts: renesas: r8a774c0: Add USB-DMAC and HSUSB device nodes dt-bindings: dmaengine: usb-dmac: Add binding for r8a774c0 dt-bindings: usb: renesas_usbhs: Add r8a774c0 support dt-bindings: usb: renesas_usbhs: add clock-names property Revert "usb: renesas_usbhs: add extcon notifier to set mode for non-otg channel" usb: renesas_usbhs: Add multiple clocks management usb: renesas_usbhs: Add reset_control usb: renesas_usbhs: add support for RZ/G2E arm64: dts: renesas: r8a774c0: Add USB2.0 phy and host device nodes dt-bindings: rcar-gen3-phy-usb2: Add r8a774c0 support dt-bindings: rcar-gen3-phy-usb2: Add r8a774a1 support arm64: renesas: Enable GPIOLIB to allow GPIO driver selection arm64: enable CMT/TMU support for Renesas SoC clocksource/drivers/sh_tmu: Convert to SPDX identifiers arm64: dts: renesas: r8a774c0: Add TMU device nodes dt-bindings: timer: renesas: tmu: Document r8a774c0 bindings clk: renesas: r8a774c0: Fix LAST_DT_CORE_CLK clk: renesas: r8a774c0: Add TMU clock clk: renesas: r8a774c0: Correct parent clock of DU clk: renesas: r8a774c0: Add missing CANFD clock arm64: dts: renesas: r8a774c0: Add CMT device nodes dt-bindings: timer: renesas, cmt: Document r8a774c0 CMT support dt-bindings: timer: renesas, cmt: Document r8a774a1 CMT support clocksource/drivers/sh_cmt: Add R-Car gen3 support dt-bindings: timer: renesas: cmt: document R-Car gen3 support clocksource/drivers/sh_cmt: Properly line-wrap sh_cmt_of_table[] initializer clocksource/drivers/sh_cmt: Fix clocksource width for 32-bit machines clocksource/drivers/sh_cmt: Fixup for 64-bit machines clocksource/drivers/sh_cmt: Convert to SPDX identifiers pinctrl: sh-pfc: r8a77990: Add DRIF pins, groups and functions pinctrl: sh-pfc: r8a77990: Add TMU pins, groups and functions pinctrl: sh-pfc: r8a77990: GP6_9 does not have pull-down capability pinctrl: sh-pfc: r8a77990: Fix MOD_SEL bit numbering pinctrl: sh-pfc: r8a77990: Fix MOD_SEL0 bit2 when using RX2, TX2 and SCK2 pinctrl: sh-pfc: r8a77990: Fix MOD_SEL0 bit3 when using TX0 pinctrl: sh-pfc: r8a77990: Fix MOD_SEL0 SEL_I2C1 field width pinctrl: sh-pfc: r8a77990: Fix IOCTRL reg state after s2ram on R-Car E3 pinctrl: sh-pfc: r8a77990: Add CAN FD pins, groups and functions pinctrl: sh-pfc: r8a77990: Add CAN pins, groups and functions arm64: dts: renesas: cat875: Enable PCIe support arm64: dts: renesas: r8a774c0-cat874: Add pciec0 support arm64: dts: renesas: r8a774c0: Add PCIe device node dt-bindings: PCI: rcar: Add device tree support for r8a774c0 arm64: dts: renesas: r8a774c0: Add MSIOF nodes spi: sh-msiof: Add r8a774c0 support spi: sh-msiof: Add r8a774a1 support arm64: dts: renesas: r8a774c0: Add I2C and IIC-DVFS support dt-bindings: i2c: rcar: Add r8a774c0 support i2c: sh_mobile: Add support for r8a774c0 (RZ/G2E) i2c: sh_mobile: add support for r8a77990 (R-Car E3) dt-bindings: i2c: sh_mobile: Add r8a774c0 support i2c: sh_mobile: document support for r8a77990 (R-Car E3) pinctrl: sh-pfc: r8a77990: Add HSCIF pins, groups, and functions pinctrl: sh-pfc: r8a77990: Add VIN[4|5] groups/functions pinctrl: sh-pfc: Add optional arg to VIN_DATA_PIN_GROUP pinctrl: sh-pfc: Reduce kernel size for narrow VIN channels arm64: dts: renesas: r8a774c0: Add watchdog support dt-bindings: watchdog: renesas-wdt: Document r8a774c0 support arm64: dts: renesas: cat875: Add ethernet support arm64: dts: renesas: r8a774c0: Add Ethernet AVB node dt-bindings: net: ravb: Add support for r8a774c0 SoC arm64: dts: renesas: r8a774c0-cat874: Add uSD support arm64: dts: renesas: r8a774c0: Add SDHI nodes mmc: renesas_sdhi_internal_dmac: Whitelist r8a774c0 dt-bindings: mmc: renesas_sdhi: Add r8a774c0 support dt-bindings: mmc: renesas_sdhi: Add r8a77470 support mmc: renesas_sdhi_internal_dmac: Whitelist r8a774a1 mmc: renesas_sdhi: Add r8a774a1 support pinctrl: sh-pfc: r8a77990: Add voltage switch operations for SDHI pinctrl: sh-pfc: r8a77990: Add SDHI pins, groups and functions pinctrl: sh-pfc: r8a77990: Add Audio SSI pins, groups and functions pinctrl: sh-pfc: r8a77990: Add Audio clock pins, groups and functions arm64: dts: renesas: r8a774c0-cat874: Add pincontrol support to scif2 arm64: dts: renesas: r8a774c0: Add GPIO device nodes dt-bindings: gpio: rcar: Add r8a774c0 (RZ/G2E) support dt-bindings: gpio: rcar: Add r8a774a1 (RZ/G2M) support arm64: dts: renesas: r8a774c0: Add PFC support arm64: dts: renesas: r8a774c0: Add INTC-EX device node pinctrl: sh-pfc: r8a77990: Add INTC-EX pins, groups and function pinctrl: sh-pfc: rcar: Rename automotive-only arrays to automotive arm64: dts: renesas: r8a774c0: Add secondary CA53 CPU core clk: renesas: cpg-mssr: Add r8a774c0 support dt-bindings: clock: renesas: cpg-mssr: Document r8a774c0 clk: renesas: cpg-mssr: Add r8a774a1 support clk: renesas: rcar-gen3: Add support for mode pin clock selection clk: renesas: rcar-gen3: Add support for RCKSEL clock selection clk: renesas: cpg-mssr: Add support for fixed rate clocks clk: renesas: rcar-gen3: Add support for OSC EXTAL predivider clk: renesas: Add r8a774a1 CPG Core Clock Definitions clk: renesas: Add r8a774c0 CPG Core Clock Definitions arm64: dts: renesas: r8a774c0: Add SCIF and HSCIF nodes dt-bindings: serial: sh-sci: Document r8a774c0 bindings dt-bindings: serial: sh-sci: Document r8a774a1 bindings arm64: dts: renesas: r8a774c0: Add SYS-DMAC controller nodes dmaengine: rcar-dmac: Document R8A774C0 bindings dmaengine: rcar-dmac: Document R8A774A1 bindings arm64: dts: renesas: Add Si-Linux EK874 board support arm64: dts: renesas: Add Si-Linux CAT874 board support arm64: dts: renesas: Initial device tree for r8a774c0 dt-bindings: arm: Add si-linux cat87[45] boards ARM: dts: socfpga: Rename socfpga_cyclone5_de0_{sockit, nano_soc} dt-bindings: irqchip: renesas-irqc: Document r8a774c0 support soc: renesas: rcar-rst: Add support for RZ/G2E dt-bindings: reset: rcar-rst: Document r8a774c0 rst soc: renesas: rcar-rst: Add support for RZ/G2M soc: renesas: rcar-sysc: Add r8a774c0 support dt-bindings: power: rcar-sysc: Document r8a774c0 sysc soc: renesas: rcar-sysc: Add r8a774a1 support dt-bindings: power: Add r8a774c0 SYSC power domain definitions dt-bindings: power: Add r8a774a1 SYSC power domain definitions arm64: defconfig: enable R8A774C0 SoC arm64: defconfig: enable R8A774A1 SoC arm64: Add Renesas R8A774C0 support arm64: Add Renesas R8A774A1 support soc: renesas: Identify RZ/G2E soc: renesas: Identify RZ/G2M dt-bindings: arm: Fix RZ/G2E part number dt-bindings: arm: Document RZ/G2E SoC DT bindings dt-bindings: arm: Document RZ/G2M SoC DT bindings pinctrl: sh-pfc: r8a77990: Add R8A774C0 PFC support pinctrl: sh-pfc: r8a77990: Add MSIOF pins, groups and functions pinctrl: sh-pfc: r8a77990: Add DU pins, groups and function pinctrl: sh-pfc: r8a77990: Add PWM pins, groups and functions dt-bindings: pinctrl: sh-pfc: Document r8a774c0 PFC support pinctrl: sh-pfc: r8a7796: Add R8A774A1 PFC support dt-bindings: pinctrl: sh-pfc: Document r8a774a1 PFC support CIP: Add a number to the version suffix Conflicts: Documentation/devicetree/bindings/i2c/i2c-rcar.txt Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt Documentation/devicetree/bindings/usb/renesas_usb3.txt Documentation/devicetree/bindings/usb/renesas_usbhs.txt Documentation/devicetree/bindings/watchdog/renesas-wdt.txt arch/arm64/boot/dts/vendor/bindings/display/panel/advantech,idk-1110wr.txt arch/arm64/boot/dts/vendor/bindings/display/panel/advantech,idk-2121wr.yaml arch/arm64/boot/dts/vendor/bindings/i2c/i2c-rcar.txt arch/arm64/boot/dts/vendor/bindings/i2c/i2c-sh_mobile.txt arch/arm64/boot/dts/vendor/bindings/i2c/renesas,i2c.txt arch/arm64/boot/dts/vendor/bindings/i2c/renesas,iic.txt arch/arm64/boot/dts/vendor/bindings/media/i2c/imx219.yaml arch/arm64/boot/dts/vendor/bindings/memory-controllers/renesas,rpc-if.yaml arch/arm64/boot/dts/vendor/bindings/pci/rcar-pci-ep.yaml arch/arm64/boot/dts/vendor/bindings/usb/renesas,usb3-peri.txt arch/arm64/boot/dts/vendor/bindings/usb/renesas,usbhs.txt arch/arm64/boot/dts/vendor/bindings/usb/renesas_usb3.txt arch/arm64/boot/dts/vendor/bindings/usb/renesas_usbhs.txt arch/arm64/boot/dts/vendor/bindings/usb/ti,hd3ss3220.txt arch/arm64/boot/dts/vendor/bindings/watchdog/renesas,wdt.txt arch/arm64/boot/dts/vendor/bindings/watchdog/renesas-wdt.txt drivers/clk/qcom/clk-alpha-pll.c drivers/hid/hid-ids.h drivers/irqchip/irq-gic-v3.c drivers/media/platform/qcom/venus/hfi_parser.c drivers/mmc/host/sdhci.h drivers/platform/x86/intel_cht_int33fe.c drivers/slimbus/messaging.c drivers/usb/dwc3/core.c drivers/usb/dwc3/gadget.c drivers/usb/gadget/function/f_fs.c drivers/usb/typec/mux.c fs/ext4/dir.c kernel/time/posix-timers.c mm/oom_kill.c Change-Id: I6ccf7ce22c6636030db6245952c67bfa54aef5a4	2025-09-02 08:35:50 +00:00
Tao Chen	31be882fdb	perf/ring_buffer: Allow the EPOLLRDNORM flag for poll ... [ Upstream commit c96fff391c095c11dc87dab35be72dee7d217cde ] The poll man page says POLLRDNORM is equivalent to POLLIN. For poll(), it seems that if user sets pollfd with POLLRDNORM in userspace, perf_poll will not return until timeout even if perf_output_wakeup called, whereas POLLIN returns. Fixes: 76369139ce ("perf: Split up buffer handling from core code") Signed-off-by: Tao Chen <chen.dylane@linux.dev> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/r/20250314030036.2543180-1-chen.dylane@linux.dev Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ulrich Hecht <uli@kernel.org>	2025-05-08 11:55:41 +02:00
Namhyung Kim	ece0857258	perf/core: Add a new read format to get a number of lost samples ... [ Upstream commit 119a784c81270eb88e573174ed2209225d646656 ] Sometimes we want to know an accurate number of samples even if it's lost. Currenlty PERF_RECORD_LOST is generated for a ring-buffer which might be shared with other events. So it's hard to know per-event lost count. Add event->lost_samples field and PERF_FORMAT_LOST to retrieve it from userspace. Original-patch-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20220616180623.1358843-1-namhyung@kernel.org Stable-dep-of: 382c27f4ed28 ("perf: Fix perf_event_validate_size()") Signed-off-by: Sasha Levin <sashal@kernel.org>	2023-12-13 17:42:19 +01:00
Shuai Xue	8c504f615d	perf/core: Bail out early if the request AUX area is out of bound ... [ Upstream commit 54aee5f15b83437f23b2b2469bcf21bdd9823916 ] When perf-record with a large AUX area, e.g 4GB, it fails with: #perf record -C 0 -m ,4G -e arm_spe_0// -- sleep 1 failed to mmap with 12 (Cannot allocate memory) and it reveals a WARNING with __alloc_pages(): ------------[ cut here ]------------ WARNING: CPU: 44 PID: 17573 at mm/page_alloc.c:5568 __alloc_pages+0x1ec/0x248 Call trace: __alloc_pages+0x1ec/0x248 __kmalloc_large_node+0xc0/0x1f8 __kmalloc_node+0x134/0x1e8 rb_alloc_aux+0xe0/0x298 perf_mmap+0x440/0x660 mmap_region+0x308/0x8a8 do_mmap+0x3c0/0x528 vm_mmap_pgoff+0xf4/0x1b8 ksys_mmap_pgoff+0x18c/0x218 __arm64_sys_mmap+0x38/0x58 invoke_syscall+0x50/0x128 el0_svc_common.constprop.0+0x58/0x188 do_el0_svc+0x34/0x50 el0_svc+0x34/0x108 el0t_64_sync_handler+0xb8/0xc0 el0t_64_sync+0x1a4/0x1a8 'rb->aux_pages' allocated by kcalloc() is a pointer array which is used to maintains AUX trace pages. The allocated page for this array is physically contiguous (and virtually contiguous) with an order of 0..MAX_ORDER. If the size of pointer array crosses the limitation set by MAX_ORDER, it reveals a WARNING. So bail out early with -ENOMEM if the request AUX area is out of bound, e.g.: #perf record -C 0 -m ,4G -e arm_spe_0// -- sleep 1 failed to mmap with 12 (Cannot allocate memory) Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>	2023-11-28 16:46:30 +00:00
Peter Zijlstra	991ea848a5	perf/ring-buffer: Always use {READ,WRITE}_ONCE() for rb->user_page data ... [ Upstream commit 4d839dd9e4356bbacf3eb0ab13a549b83b008c21 ] We must use {READ,WRITE}_ONCE() on rb->user_page data such that concurrent usage will see whole values. A few key sites were missing this. Suggested-by: Yabin Cui <yabinc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: acme@kernel.org Cc: mark.rutland@arm.com Cc: namhyung@kernel.org Fixes: 7b732a7504 ("perf_counter: new output ABI - part 1") Link: http://lkml.kernel.org/r/20190517115418.394192145@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>	2019-06-22 08:15:16 +02:00
Peter Zijlstra	c133c9db23	perf/ring_buffer: Add ordering to rb->nest increment ... [ Upstream commit 3f9fbe9bd86c534eba2faf5d840fd44c6049f50e ] Similar to how decrementing rb->next too early can cause data_head to (temporarily) be observed to go backward, so too can this happen when we increment too late. This barrier() ensures the rb->head load happens after the increment, both the one in the 'goto again' path, as the one from perf_output_get_handle() -- albeit very unlikely to matter for the latter. Suggested-by: Yabin Cui <yabinc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: acme@kernel.org Cc: mark.rutland@arm.com Cc: namhyung@kernel.org Fixes: ef60777c9a ("perf: Optimize the perf_output() path by removing IRQ-disables") Link: http://lkml.kernel.org/r/20190517115418.309516009@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>	2019-06-22 08:15:16 +02:00
Yabin Cui	cca19ab29a	perf/ring_buffer: Fix exposing a temporarily decreased data_head ... [ Upstream commit 1b038c6e05ff70a1e66e3e571c2e6106bdb75f53 ] In perf_output_put_handle(), an IRQ/NMI can happen in below location and write records to the same ring buffer: ... local_dec_and_test(&rb->nest) ... <-- an IRQ/NMI can happen here rb->user_page->data_head = head; ... In this case, a value A is written to data_head in the IRQ, then a value B is written to data_head after the IRQ. And A > B. As a result, data_head is temporarily decreased from A to B. And a reader may see data_head < data_tail if it read the buffer frequently enough, which creates unexpected behaviors. This can be fixed by moving dec(&rb->nest) to after updating data_head, which prevents the IRQ/NMI above from updating data_head. [ Split up by peterz. ] Signed-off-by: Yabin Cui <yabinc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: mark.rutland@arm.com Fixes: ef60777c9a ("perf: Optimize the perf_output() path by removing IRQ-disables") Link: http://lkml.kernel.org/r/20190517115418.224478157@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>	2019-06-22 08:15:16 +02:00
Peter Zijlstra	42638d6aae	perf/core: Fix perf_event_disable_inatomic() race ... [ Upstream commit 1d54ad944074010609562da5c89e4f5df2f4e5db ] Thomas-Mich Richter reported he triggered a WARN()ing from event_function_local() on his s390. The problem boils down to: CPU-A CPU-B perf_event_overflow() perf_event_disable_inatomic() @pending_disable = 1 irq_work_queue(); sched-out event_sched_out() @pending_disable = 0 sched-in perf_event_overflow() perf_event_disable_inatomic() @pending_disable = 1; irq_work_queue(); // FAILS irq_work_run() perf_pending_event() if (@pending_disable) perf_event_disable_local(); // WHOOPS The problem exists in generic, but s390 is particularly sensitive because it doesn't implement arch_irq_work_raise(), nor does it call irq_work_run() from it's PMU interrupt handler (nor would that be sufficient in this case, because s390 also generates perf_event_overflow() from pmu::stop). Add to that the fact that s390 is a virtual architecture and (virtual) CPU-A can stall long enough for the above race to happen, even if it would self-IPI. Adding a irq_work_sync() to event_sched_in() would work for all hardare PMUs that properly use irq_work_run() but fails for software PMUs. Instead encode the CPU number in @pending_disable, such that we can tell which CPU requested the disable. This then allows us to detect the above scenario and even redirect the IPI to make up for the failed queue. Reported-by: Thomas-Mich Richter <tmricht@linux.ibm.com> Tested-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Hendrik Brueckner <brueckner@linux.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>	2019-05-10 17:54:09 +02:00
Mathieu Poirier	efd85d83ac	perf/aux: Make perf_event accessible to setup_aux() ... [ Upstream commit 840018668ce2d96783356204ff282d6c9b0e5f66 ] When pmu::setup_aux() is called the coresight PMU needs to know which sink to use for the session by looking up the information in the event's attr::config2 field. As such simply replace the cpu information by the complete perf_event structure and change all affected customers. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Suzuki Poulouse <suzuki.poulose@arm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-s390@vger.kernel.org Link: http://lkml.kernel.org/r/20190131184714.20388-2-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>	2019-04-05 22:33:11 +02:00
Ingo Molnar	d10e77c260	perf/core: Fix impossible ring-buffer sizes warning ... commit 528871b456026e6127d95b1b2bd8e3a003dc1614 upstream. The following commit: 9dff0aa95a32 ("perf/core: Don't WARN() for impossible ring-buffer sizes") results in perf recording failures with larger mmap areas: root@skl:/tmp# perf record -g -a failed to mmap with 12 (Cannot allocate memory) The root cause is that the following condition is buggy: if (order_base_2(size) >= MAX_ORDER) goto fail; The problem is that @size is in bytes and MAX_ORDER is in pages, so the right test is: if (order_base_2(size) >= PAGE_SHIFT+MAX_ORDER) goto fail; Fix it. Reported-by: "Jin, Yao" <yao.jin@linux.intel.com> Bisected-by: Borislav Petkov <bp@alien8.de> Analyzed-by: Peter Zijlstra <peterz@infradead.org> Cc: Julien Thierry <julien.thierry@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: <stable@vger.kernel.org> Fixes: 9dff0aa95a32 ("perf/core: Don't WARN() for impossible ring-buffer sizes") Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2019-02-20 10:25:44 +01:00
Mark Rutland	1aeeb17668	perf/core: Don't WARN() for impossible ring-buffer sizes ... commit 9dff0aa95a324e262ffb03f425d00e4751f3294e upstream. The perf tool uses /proc/sys/kernel/perf_event_mlock_kb to determine how large its ringbuffer mmap should be. This can be configured to arbitrary values, which can be larger than the maximum possible allocation from kmalloc. When this is configured to a suitably large value (e.g. thanks to the perf fuzzer), attempting to use perf record triggers a WARN_ON_ONCE() in __alloc_pages_nodemask(): WARNING: CPU: 2 PID: 5666 at mm/page_alloc.c:4511 __alloc_pages_nodemask+0x3f8/0xbc8 Let's avoid this by checking that the requested allocation is possible before calling kzalloc. Reported-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@vger.kernel.org> Link: https://lkml.kernel.org/r/20190110142745.25495-1-mark.rutland@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2019-02-12 19:47:26 +01:00
Linus Torvalds	c81b995f00	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ... Pull perf fixes from Thomas Gleixner: "A pile of perf updates: Kernel side: - Remove an incorrect warning in uprobe_init_insn() when insn_get_length() fails. The error return code is handled at the call site. - Move the inline keyword to the right place in the perf ringbuffer code to address a W=1 build warning. Tooling: perf stat: - Fix metric column header display alignment - Improve error messages for default attributes, providing better output for error in command line. - Add --interval-clear option, to provide a 'watch' like printing perf script: - Show hw-cache events too perf c2c: - Fix data dependency problem in layout of 'struct c2c_hist_entry' Core: - Do not blindly assume that 'struct perf_evsel' can be obtained via a straight forward container_of() as there are call sites which hand in a plain 'struct hist' which is not part of a container. - Fix error index in the PMU event parser, so that error messages can point to the problematic token" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Move the inline keyword at the beginning of the function declaration uprobes/x86: Remove incorrect WARN_ON() in uprobe_init_insn() perf script: Show hw-cache events perf c2c: Keep struct hist_entry at the end of struct c2c_hist_entry perf stat: Add event parsing error handling to add_default_attributes perf stat: Allow to specify specific metric column len perf stat: Fix metric column header display alignment perf stat: Use only color_fprintf call in print_metric_only perf stat: Add --interval-clear option perf tools: Fix error index for pmu event parser perf hists: Reimplement hists__has_callchains() perf hists browser gtk: Use hist_entry__has_callchains() perf hists: Make hist_entry__has_callchains() work with 'perf c2c' perf hists: Save the callchain_size in struct hist_entry	2018-06-24 20:29:15 +08:00
Mathieu Malaterre	57d6a7938a	perf/core: Move the inline keyword at the beginning of the function declaration ... When building perf with W=1 the following warning triggers: CC kernel/events/ring_buffer.o kernel/events/ring_buffer.c:105:1: warning: ‘inline’ is not at beginning of declaration [-Wold-style-declaration] static bool __always_inline ^~~~~~ ... Move the inline keyword to the beginning of the function declaration. Signed-off-by: Mathieu Malaterre <malat@debian.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: trival@kernel.org Link: http://lkml.kernel.org/r/20180308202856.9378-1-malat@debian.org Signed-off-by: Ingo Molnar <mingo@kernel.org>	2018-06-22 11:07:47 +02:00
Kees Cook	590b5b7d86	treewide: kzalloc_node() -> kcalloc_node() ... The kzalloc_node() function has a 2-factor argument form, kcalloc_node(). This patch replaces cases of: kzalloc_node(a * b, gfp, node) with: kcalloc_node(a * b, gfp, node) as well as handling cases of: kzalloc_node(a * b * c, gfp, node) with: kzalloc_node(array3_size(a, b, c), gfp, node) as it's slightly less ugly than: kcalloc_node(array_size(a, b), c, gfp, node) This does, however, attempt to ignore constant size factors like: kzalloc_node(4 * 1024, gfp, node) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc_node( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc_node( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc_node( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc_node( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc_node( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc_node( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc_node( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc_node( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc_node( - sizeof(char) * COUNT + COUNT , ...) | kzalloc_node( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc_node + kcalloc_node ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc_node + kcalloc_node ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc_node( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc_node( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc_node( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc_node( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc_node( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc_node( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc_node( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc_node( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc_node( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc_node( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc_node( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc_node( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc_node( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc_node( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc_node( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc_node( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc_node( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc_node( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc_node( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc_node( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc_node( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc_node( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc_node(C1 * C2 * C3, ...) | kzalloc_node( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc_node( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc_node( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc_node( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc_node(sizeof(THING) * C2, ...) | kzalloc_node(sizeof(TYPE) * C2, ...) | kzalloc_node(C1 * C2 * C3, ...) | kzalloc_node(C1 * C2, ...) | - kzalloc_node + kcalloc_node ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc_node + kcalloc_node ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc_node + kcalloc_node ( - (E1) * E2 + E1, E2 , ...) | - kzalloc_node + kcalloc_node ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc_node + kcalloc_node ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>	2018-06-12 16:19:22 -07:00
Peter Zijlstra	4411ec1d19	perf/core: Fix possible Spectre-v1 indexing for ->aux_pages[] ... > kernel/events/ring_buffer.c:871 perf_mmap_to_page() warn: potential spectre issue 'rb->aux_pages' Userspace controls @pgoff through the fault address. Sanitize the array index before doing the array dereference. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <stable@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Ingo Molnar <mingo@kernel.org>	2018-05-05 08:37:27 +02:00
Linus Torvalds	a9a08845e9	vfs: do bulk POLL* -> EPOLL* replacement ... This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2018-02-11 14:34:03 -08:00
Linus Torvalds	c9b012e5f4	Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux ... Pull arm64 updates from Will Deacon: "The big highlight is support for the Scalable Vector Extension (SVE) which required extensive ABI work to ensure we don't break existing applications by blowing away their signal stack with the rather large new vector context (<= 2 kbit per vector register). There's further work to be done optimising things like exception return, but the ABI is solid now. Much of the line count comes from some new PMU drivers we have, but they're pretty self-contained and I suspect we'll have more of them in future. Plenty of acronym soup here: - initial support for the Scalable Vector Extension (SVE) - improved handling for SError interrupts (required to handle RAS events) - enable GCC support for 128-bit integer types - remove kernel text addresses from backtraces and register dumps - use of WFE to implement long delay()s - ACPI IORT updates from Lorenzo Pieralisi - perf PMU driver for the Statistical Profiling Extension (SPE) - perf PMU driver for Hisilicon's system PMUs - misc cleanups and non-critical fixes" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (97 commits) arm64: Make ARMV8_DEPRECATED depend on SYSCTL arm64: Implement __lshrti3 library function arm64: support __int128 on gcc 5+ arm64/sve: Add documentation arm64/sve: Detect SVE and activate runtime support arm64/sve: KVM: Hide SVE from CPU features exposed to guests arm64/sve: KVM: Treat guest SVE use as undefined instruction execution arm64/sve: KVM: Prevent guests from using SVE arm64/sve: Add sysctl to set the default vector length for new processes arm64/sve: Add prctl controls for userspace vector length management arm64/sve: ptrace and ELF coredump support arm64/sve: Preserve SVE registers around EFI runtime service calls arm64/sve: Preserve SVE registers around kernel-mode NEON use arm64/sve: Probe SVE capabilities and usable vector lengths arm64: cpufeature: Move sys_caps_initialised declarations arm64/sve: Backend logic for setting the vector length arm64/sve: Signal handling support arm64/sve: Support vector length resetting for new processes arm64/sve: Core task context handling arm64/sve: Low-level CPU setup ...	2017-11-15 10:56:56 -08:00
Mark Rutland	6aa7de0591	locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() ... Please do not apply this to mainline directly, instead please re-run the coccinelle script shown below and apply its output. For several reasons, it is desirable to use {READ,WRITE}_ONCE() in preference to ACCESS_ONCE(), and new code is expected to use one of the former. So far, there's been no reason to change most existing uses of ACCESS_ONCE(), as these aren't harmful, and changing them results in churn. However, for some features, the read/write distinction is critical to correct operation. To distinguish these cases, separate read/write accessors must be used. This patch migrates (most) remaining ACCESS_ONCE() instances to {READ,WRITE}_ONCE(), using the following coccinelle script: ---- // Convert trivial ACCESS_ONCE() uses to equivalent READ_ONCE() and // WRITE_ONCE() // $ make coccicheck COCCI=/home/mark/once.cocci SPFLAGS="--include-headers" MODE=patch virtual patch @ depends on patch @ expression E1, E2; @@ - ACCESS_ONCE(E1) = E2 + WRITE_ONCE(E1, E2) @ depends on patch @ expression E; @@ - ACCESS_ONCE(E) + READ_ONCE(E) ---- Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: davem@davemloft.net Cc: linux-arch@vger.kernel.org Cc: mpe@ellerman.id.au Cc: shuah@kernel.org Cc: snitzer@redhat.com Cc: thor.thayer@linux.intel.com Cc: tj@kernel.org Cc: viro@zeniv.linux.org.uk Cc: will.deacon@arm.com Link: http://lkml.kernel.org/r/1508792849-3115-19-git-send-email-paulmck@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2017-10-25 11:01:08 +02:00
Will Deacon	bc1d202023	perf/core: Export AUX buffer helpers to modules ... Perf PMU drivers using AUX buffers cannot be built as modules unless the AUX helpers are exported. This patch exports perf_aux_output_{begin,end,skip} and perf_get_aux to modules. Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Will Deacon <will.deacon@arm.com>	2017-10-18 12:53:30 +01:00
Alexander Shishkin	441430eb54	perf/aux: Only update ->aux_wakeup in non-overwrite mode ... The following commit: d9a50b0256 ("perf/aux: Ensure aux_wakeup represents most recent wakeup index") changed the AUX wakeup position calculation to rounddown(), which causes a division-by-zero in AUX overwrite mode (aka "snapshot mode"). The zero denominator results from the fact that perf record doesn't set aux_watermark to anything, in which case the kernel will set it to half the AUX buffer size, but only for non-overwrite mode. In the overwrite mode aux_watermark stays zero. The good news is that, AUX overwrite mode, wakeups don't happen and related bookkeeping is not relevant, so we can simply forego the whole wakeup updates. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: will.deacon@arm.com Link: http://lkml.kernel.org/r/20170906160811.16510-1-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2017-09-29 10:06:45 +02:00
Will Deacon	d9a50b0256	perf/aux: Ensure aux_wakeup represents most recent wakeup index ... The aux_watermark member of struct ring_buffer represents the period (in terms of bytes) at which wakeup events should be generated when data is written to the aux buffer in non-snapshot mode. On hardware that cannot generate an interrupt when the aux_head reaches an arbitrary wakeup index (such as ARM SPE), the aux_head sampled from handle->head in perf_aux_output_{skip,end} may in fact be past the wakeup index. This can lead to wakeup slowly falling behind the head. For example, consider the case where hardware can only generate an interrupt on a page-boundary and the aux buffer is initialised as follows: // Buffer size is 2 * PAGE_SIZE rb->aux_head = rb->aux_wakeup = 0 rb->aux_watermark = PAGE_SIZE / 2 following the first perf_aux_output_begin call, the handle is initialised with: handle->head = 0 handle->size = 2 * PAGE_SIZE handle->wakeup = PAGE_SIZE / 2 and the hardware will be programmed to generate an interrupt at PAGE_SIZE. When the interrupt is raised, the hardware head will be at PAGE_SIZE, so calling perf_aux_output_end(handle, PAGE_SIZE) puts the ring buffer into the following state: rb->aux_head = PAGE_SIZE rb->aux_wakeup = PAGE_SIZE / 2 rb->aux_watermark = PAGE_SIZE / 2 and then the next call to perf_aux_output_begin will result in: handle->head = handle->wakeup = PAGE_SIZE for which the semantics are unclear and, for a smaller aux_watermark (e.g. PAGE_SIZE / 4), then the wakeup would in fact be behind head at this point. This patch fixes the problem by rounding down the aux_head (as sampled from the handle) to the nearest aux_watermark boundary when updating rb->aux_wakeup, therefore taking into account any overruns by the hardware. Reported-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1502900297-21839-2-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2017-08-25 11:04:16 +02:00
Will Deacon	2ab346cfb0	perf/aux: Make aux_{head,wakeup} ring_buffer members long ... The aux_head and aux_wakeup members of struct ring_buffer are defined using the local_t type, despite the fact that they are only accessed via the perf_aux_output_*() functions, which cannot race with each other for a given ring buffer. This patch changes the type of the members to long, so we can avoid using the local_*() API where it isn't needed. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1502900297-21839-1-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2017-08-25 11:04:15 +02:00
Hendrik Brueckner	8a1898db51	perf/aux: Correct return code of rb_alloc_aux() if !has_aux(ev) ... If the event for which an AUX area is about to be allocated, does not support setting up an AUX area, rb_alloc_aux() return -ENOTSUPP. This error condition is being returned unfiltered to the user space, and, for example, the perf tools fails with: failed to mmap with 524 (INTERNAL ERROR: strerror_r(524, 0x3fff497a1c8, 512)=22) This error can be easily seen with "perf record -m 128,256 -e cpu-clock". The 524 error code maps to -ENOTSUPP (in rb_alloc_aux()). The -ENOTSUPP error code shall be only used within the kernel. So the correct error code would then be -EOPNOTSUPP. With this commit, the perf tool then reports: failed to mmap with 95 (Operation not supported) which is more clear. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Pu Hou <bjhoupu@linux.vnet.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Cc: acme@kernel.org Cc: linux-s390@vger.kernel.org Link: http://lkml.kernel.org/r/1497954399-6355-1-git-send-email-brueckner@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2017-06-21 11:58:30 +02:00
Alexander Shishkin	ae0c2d995d	perf/core: Add a flag for partial AUX records ... The Intel PT driver needs to be able to communicate partial AUX transactions, that is, transactions with gaps in data for reasons other than no room left in the buffer (i.e. truncated transactions). Therefore, this condition does not imply a wakeup for the consumer. To this end, add a new "partial" AUX flag. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: vince@deater.net Link: http://lkml.kernel.org/r/20170220133352.17995-4-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2017-03-16 09:51:11 +01:00
Will Deacon	f4c0b0aa58	perf/core: Keep AUX flags in the output handle ... In preparation for adding more flags to perf AUX records, introduce a separate API for setting the flags for a session, rather than appending more bool arguments to perf_aux_output_end. This allows to set each flag at the time a corresponding condition is detected, instead of tracking it in each driver's private state. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: vince@deater.net Link: http://lkml.kernel.org/r/20170220133352.17995-3-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2017-03-16 09:51:10 +01:00
Alexander Shishkin	b79ccadd6b	perf/core: Fix aux_mmap_count vs aux_refcount order ... The order of accesses to ring buffer's aux_mmap_count and aux_refcount has to be preserved across the users, namely perf_mmap_close() and perf_aux_output_begin(), otherwise the inversion can result in the latter holding the last reference to the aux buffer and subsequently free'ing it in atomic context, triggering a warning. > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 257 at kernel/events/ring_buffer.c:541 __rb_free_aux+0x11a/0x130 > CPU: 0 PID: 257 Comm: stopbug Not tainted 4.8.0-rc1+ #2596 > Call Trace: > [<ffffffff810f3e0b>] __warn+0xcb/0xf0 > [<ffffffff810f3f3d>] warn_slowpath_null+0x1d/0x20 > [<ffffffff8121182a>] __rb_free_aux+0x11a/0x130 > [<ffffffff812127a8>] rb_free_aux+0x18/0x20 > [<ffffffff81212913>] perf_aux_output_begin+0x163/0x1e0 > [<ffffffff8100c33a>] bts_event_start+0x3a/0xd0 > [<ffffffff8100c42d>] bts_event_add+0x5d/0x80 > [<ffffffff81203646>] event_sched_in.isra.104+0xf6/0x2f0 > [<ffffffff8120652e>] group_sched_in+0x6e/0x190 > [<ffffffff8120694e>] ctx_sched_in+0x2fe/0x5f0 > [<ffffffff81206ca0>] perf_event_sched_in+0x60/0x80 > [<ffffffff81206d1b>] ctx_resched+0x5b/0x90 > [<ffffffff81207281>] __perf_event_enable+0x1e1/0x240 > [<ffffffff81200639>] event_function+0xa9/0x180 > [<ffffffff81202000>] ? perf_cgroup_attach+0x70/0x70 > [<ffffffff8120203f>] remote_function+0x3f/0x50 > [<ffffffff811971f3>] flush_smp_call_function_queue+0x83/0x150 > [<ffffffff81197bd3>] generic_smp_call_function_single_interrupt+0x13/0x60 > [<ffffffff810a6477>] smp_call_function_single_interrupt+0x27/0x40 > [<ffffffff81a26ea9>] call_function_single_interrupt+0x89/0x90 > [<ffffffff81120056>] finish_task_switch+0xa6/0x210 > [<ffffffff81120017>] ? finish_task_switch+0x67/0x210 > [<ffffffff81a1e83d>] __schedule+0x3dd/0xb50 > [<ffffffff81a1efe5>] schedule+0x35/0x80 > [<ffffffff81128031>] sys_sched_yield+0x61/0x70 > [<ffffffff81a25be5>] entry_SYSCALL_64_fastpath+0x18/0xa8 > ---[ end trace 6235f556f5ea83a9 ]--- This patch puts the checks in perf_aux_output_begin() in the same order as that of perf_mmap_close(). Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: vince@deater.net Link: http://lkml.kernel.org/r/20160906132353.19887-3-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-09-10 11:15:36 +02:00
Alexander Shishkin	3f56e687a1	perf/core: Disable the event on a truncated AUX record ... When the PMU driver reports a truncated AUX record, it effectively means that there is no more usable room in the event's AUX buffer (even though there may still be some room, so that perf_aux_output_begin() doesn't take action). At this point the consumer still has to be woken up and the event has to be disabled, otherwise the event will just keep spinning between perf_aux_output_begin() and perf_aux_output_end() until its context gets unscheduled. Again, for cpu-wide events this means never, so once in this condition, they will be forever losing data. Fix this by disabling the event and waking up the consumer in case of a truncated AUX record. Reported-by: Markus Metzger <markus.t.metzger@intel.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: vince@deater.net Link: http://lkml.kernel.org/r/1462886313-13660-3-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-05-12 10:14:55 +02:00
Wang Nan	9ecda41acb	perf/core: Add ::write_backward attribute to perf event ... This patch introduces 'write_backward' bit to perf_event_attr, which controls the direction of a ring buffer. After set, the corresponding ring buffer is written from end to beginning. This feature is design to support reading from overwritable ring buffer. Ring buffer can be created by mapping a perf event fd. Kernel puts event records into ring buffer, user tooling like perf fetch them from address returned by mmap(). To prevent racing between kernel and tooling, they communicate to each other through 'head' and 'tail' pointers. Kernel maintains 'head' pointer, points it to the next free area (tail of the last record). Tooling maintains 'tail' pointer, points it to the tail of last consumed record (record has already been fetched). Kernel determines the available space in a ring buffer using these two pointers to avoid overwrite unfetched records. By mapping without 'PROT_WRITE', an overwritable ring buffer is created. Different from normal ring buffer, tooling is unable to maintain 'tail' pointer because writing is forbidden. Therefore, for this type of ring buffers, kernel overwrite old records unconditionally, works like flight recorder. This feature would be useful if reading from overwritable ring buffer were as easy as reading from normal ring buffer. However, there's an obscure problem. The following figure demonstrates a full overwritable ring buffer. In this figure, the 'head' pointer points to the end of last record, and a long record 'E' is pending. For a normal ring buffer, a 'tail' pointer would have pointed to position (X), so kernel knows there's no more space in the ring buffer. However, for an overwritable ring buffer, kernel ignore the 'tail' pointer. (X) head . | . V +------+-------+----------+------+---+ |A....A|B.....B|C........C|D....D| | +------+-------+----------+------+---+ Record 'A' is overwritten by event 'E': head | V +--+---+-------+----------+------+---+ |.E|..A|B.....B|C........C|D....D|E..| +--+---+-------+----------+------+---+ Now tooling decides to read from this ring buffer. However, none of these two natural positions, 'head' and the start of this ring buffer, are pointing to the head of a record. Even the full ring buffer can be accessed by tooling, it is unable to find a position to start decoding. The first attempt tries to solve this problem AFAIK can be found from [1]. It makes kernel to maintain 'tail' pointer: updates it when ring buffer is half full. However, this approach introduces overhead to fast path. Test result shows a 1% overhead [2]. In addition, this method utilizes no more tham 50% records. Another attempt can be found from [3], which allows putting the size of an event at the end of each record. This approach allows tooling to find records in a backward manner from 'head' pointer by reading size of a record from its tail. However, because of alignment requirement, it needs 8 bytes to record the size of a record, which is a huge waste. Its performance is also not good, because more data need to be written. This approach also introduces some extra branch instructions to fast path. 'write_backward' is a better solution to this problem. Following figure demonstrates the state of the overwritable ring buffer when 'write_backward' is set before overwriting: head | V +---+------+----------+-------+------+ | |D....D|C........C|B.....B|A....A| +---+------+----------+-------+------+ and after overwriting: head | V +---+------+----------+-------+---+--+ |..E|D....D|C........C|B.....B|A..|E.| +---+------+----------+-------+---+--+ In each situation, 'head' points to the beginning of the newest record. From this record, tooling can iterate over the full ring buffer and fetch records one by one. The only limitation that needs to be considered is back-to-back reading. Due to the non-deterministic of user programs, it is impossible to ensure the ring buffer keeps stable during reading. Consider an extreme situation: tooling is scheduled out after reading record 'D', then a burst of events come, eat up the whole ring buffer (one or multiple rounds). When the tooling process comes back, reading after 'D' is incorrect now. To prevent this problem, we need to find a way to ensure the ring buffer is stable during reading. ioctl(PERF_EVENT_IOC_PAUSE_OUTPUT) is suggested because its overhead is lower than ioctl(PERF_EVENT_IOC_ENABLE). By carefully verifying 'header' pointer, reader can avoid pausing the ring-buffer. For example: /* A union of all possible events */ union perf_event event; p = head = perf_mmap__read_head(); while (true) { /* copy header of next event */ fetch(&event.header, p, sizeof(event.header)); /* read 'head' pointer */ head = perf_mmap__read_head(); /* check overwritten: is the header good? */ if (!verify(sizeof(event.header), p, head)) break; /* copy the whole event */ fetch(&event, p, event.header.size); /* read 'head' pointer again */ head = perf_mmap__read_head(); /* is the whole event good? */ if (!verify(event.header.size, p, head)) break; p += event.header.size; } However, the overhead is high because: a) In-place decoding is not safe. Copying-verifying-decoding is required. b) Fetching 'head' pointer requires additional synchronization. (From Alexei Starovoitov: Even when this trick works, pause is needed for more than stability of reading. When we collect the events into overwrite buffer we're waiting for some other trigger (like all cpu utilization spike or just one cpu running and all others are idle) and when it happens the buffer has valuable info from the past. At this point new events are no longer interesting and buffer should be paused, events read and unpaused until next trigger comes.) This patch utilizes event's default overflow_handler introduced previously. perf_event_output_backward() is created as the default overflow handler for backward ring buffers. To avoid extra overhead to fast path, original perf_event_output() becomes __perf_event_output() and marked '__always_inline'. In theory, there's no extra overhead introduced to fast path. Performance testing: Calling 3000000 times of 'close(-1)', use gettimeofday() to check duration. Use 'perf record -o /dev/null -e raw_syscalls:*' to capture system calls. In ns. Testing environment: CPU : Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz Kernel : v4.5.0 MEAN STDVAR BASE 800214.950 2853.083 PRE1 2253846.700 9997.014 PRE2 2257495.540 8516.293 POST 2250896.100 8933.921 Where 'BASE' is pure performance without capturing. 'PRE1' is test result of pure 'v4.5.0' kernel. 'PRE2' is test result before this patch. 'POST' is test result after this patch. See [4] for the detailed experimental setup. Considering the stdvar, this patch doesn't introduce performance overhead to the fast path. [1] http://lkml.iu.edu/hypermail/linux/kernel/1304.1/04584.html [2] http://lkml.iu.edu/hypermail/linux/kernel/1307.1/00535.html [3] http://lkml.iu.edu/hypermail/linux/kernel/1512.0/01265.html [4] http://lkml.kernel.org/g/56F89DCD.1040202@huawei.com Signed-off-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: <acme@kernel.org> Cc: <pi3orama@163.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/r/1459865478-53413-1-git-send-email-wangnan0@huawei.com [ Fixed the changelog some more. ] Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-04-23 14:12:39 +02:00
Wang Nan	d1b26c7024	perf/ring_buffer: Prepare writing into the ring-buffer from the end ... Convert perf_output_begin() to __perf_output_begin() and make the later function able to write records from the end of the ring-buffer. Following commits will utilize the 'backward' flag. This is the core patch to support writing to the ring-buffer backwards, which will be introduced by upcoming patches to support reading from overwritable ring-buffers. In theory, this patch should not introduce any extra performance overhead since we use always_inline, but it does not hurt to double check that assumption: When CONFIG_OPTIMIZE_INLINING is disabled, the output object is nearly identical to original one. See: http://lkml.kernel.org/g/56F52E83.70409@huawei.com When CONFIG_OPTIMIZE_INLINING is enabled, the resuling object file becomes smaller: $ size kernel/events/ring_buffer.o* text data bss dec hex filename 4641 4 8 4653 122d kernel/events/ring_buffer.o.old 4545 4 8 4557 11cd kernel/events/ring_buffer.o.new Performance testing results: Calling 3000000 times of 'close(-1)', use gettimeofday() to check duration. Use 'perf record -o /dev/null -e raw_syscalls:*' to capture system calls. In ns. Testing environment: CPU : Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz Kernel : v4.5.0 MEAN STDVAR BASE 800214.950 2853.083 PRE 2253846.700 9997.014 POST 2257495.540 8516.293 Where 'BASE' is pure performance without capturing. 'PRE' is test result of pure 'v4.5.0' kernel. 'POST' is test result after this patch. Considering the stdvar, this patch doesn't hurt performance, within noise margin. For testing details, see: http://lkml.kernel.org/g/56F89DCD.1040202@huawei.com Signed-off-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <pi3orama@163.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/r/1459147292-239310-4-git-send-email-wangnan0@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-03-31 10:30:49 +02:00
Wang Nan	86e7972f69	perf/ring_buffer: Introduce new ioctl options to pause and resume the ring-buffer ... Add new ioctl() to pause/resume ring-buffer output. In some situations we want to read from the ring-buffer only when we ensure nothing can write to the ring-buffer during reading. Without this patch we have to turn off all events attached to this ring-buffer to achieve this. This patch is a prerequisite to enable overwrite support for the perf ring-buffer support. Following commits will introduce new methods support reading from overwrite ring buffer. Before reading, caller must ensure the ring buffer is frozen, or the reading is unreliable. Signed-off-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <pi3orama@163.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/r/1459147292-239310-2-git-send-email-wangnan0@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-03-31 10:30:45 +02:00
Alexander Shishkin	af5bb4ed12	perf/ring_buffer: Document AUX API usage ... In order to ensure safe AUX buffer management, we rely on the assumption that pmu::stop() stops its ongoing AUX transaction and not just the hw. This patch documents this requirement for the perf_aux_output_{begin,end}() APIs. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: vince@deater.net Link: http://lkml.kernel.org/r/1457098969-21595-4-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-03-31 10:30:43 +02:00
Alexander Shishkin	95ff4ca26c	perf/core: Free AUX pages in unmap path ... Now that we can ensure that when ring buffer's AUX area is on the way to getting unmapped new transactions won't start, we only need to stop all events that can potentially be writing aux data to our ring buffer. Having done that, we can safely free the AUX pages and corresponding PMU data, as this time it is guaranteed to be the last aux reference holder. This partially reverts: 57ffc5ca67 ("perf: Fix AUX buffer refcounting") ... which was made to defer deallocation that was otherwise possible from an NMI context. Now it is no longer the case; the last call to rb_free_aux() that drops the last AUX reference has to happen in perf_mmap_close() on that AUX area. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: vince@deater.net Link: http://lkml.kernel.org/r/87d1qtz23d.fsf@ashishki-desk.ger.corp.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-03-31 10:30:42 +02:00
Alexander Shishkin	dcb10a967c	perf/ring_buffer: Refuse to begin AUX transaction after rb->aux_mmap_count drops ... When ring buffer's AUX area is unmapped and rb->aux_mmap_count drops to zero, new AUX transactions into this buffer can still be started, even though the buffer in en route to deallocation. This patch adds a check to perf_aux_output_begin() for rb->aux_mmap_count being zero, in which case there is no point starting new transactions, in other words, the ring buffers that pass a certain point in perf_mmap_close will not have their events sending new data, which clears path for freeing those buffers' pages right there and then, provided that no active transactions are holding the AUX reference. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: vince@deater.net Link: http://lkml.kernel.org/r/1457098969-21595-2-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-03-31 10:30:41 +02:00
Peter Zijlstra	8184059e93	perf/core: Fix Undefined behaviour in rb_alloc() ... Sasha reported: [ 3494.030114] UBSAN: Undefined behaviour in kernel/events/ring_buffer.c:685:22 [ 3494.030647] shift exponent -1 is negative Andrey spotted that this is because: It happens if nr_pages = 0: rb->page_order = ilog2(nr_pages); Fix it by making both assignments conditional on nr_pages; since otherwise they should both be 0 anyway, and will be because of the kzalloc() used to allocate the structure. Reported-by: Sasha Levin <sasha.levin@oracle.com> Reported-by: Andrey Ryabinin <ryabinin.a.a@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: http://lkml.kernel.org/r/20160129141751.GA407@worktop Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-03-21 09:08:18 +01:00
Alexander Shishkin	45c815f06b	perf: Synchronously free aux pages in case of allocation failure ... We are currently using asynchronous deallocation in the error path in AUX mmap code, which is unnecessary and also presents a problem for users that wish to probe for the biggest possible buffer size they can get: they'll get -EINVAL on all subsequent attemts to allocate a smaller buffer before the asynchronous deallocation callback frees up the pages from the previous unsuccessful attempt. Currently, gdb does that for allocating AUX buffers for Intel PT traces. More specifically, overwrite mode of AUX pmus that don't support hardware sg (some implementations of Intel PT, for instance) is limited to only one contiguous high order allocation for its buffer and there is no way of knowing its size without trying. This patch changes error path freeing to be synchronous as there won't be any contenders for the AUX pages at that point. Reported-by: Markus Metzger <markus.t.metzger@intel.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: vince@deater.net Link: http://lkml.kernel.org/r/1453216469-9509-1-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2016-01-21 18:54:27 +01:00
Peter Zijlstra	90eec103b9	treewide: Remove old email address ... There were still a number of references to my old Red Hat email address in the kernel source. Remove these while keeping the Red Hat copyright notices intact. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-11-23 09:44:58 +01:00
Linus Torvalds	105ff3cbf2	atomic: remove all traces of READ_ONCE_CTRL() and atomic*_read_ctrl() ... This seems to be a mis-reading of how alpha memory ordering works, and is not backed up by the alpha architecture manual. The helper functions don't do anything special on any other architectures, and the arguments that support them being safe on other architectures also argue that they are safe on alpha. Basically, the "control dependency" is between a previous read and a subsequent write that is dependent on the value read. Even if the subsequent write is actually done speculatively, there is no way that such a speculative write could be made visible to other cpu's until it has been committed, which requires validating the speculation. Note that most weakely ordered architectures (very much including alpha) do not guarantee any ordering relationship between two loads that depend on each other on a control dependency: read A if (val == 1) read B because the conditional may be predicted, and the "read B" may be speculatively moved up to before reading the value A. So we require the user to insert a smp_rmb() between the two accesses to be correct: read A; if (A == 1) smp_rmb() read B Alpha is further special in that it can break that ordering even if the *address* of B depends on the read of A, because the cacheline that is read later may be stale unless you have a memory barrier in between the pointer read and the read of the value behind a pointer: read ptr read offset(ptr) whereas all other weakly ordered architectures guarantee that the data dependency (as opposed to just a control dependency) will order the two accesses. As a result, alpha needs a "smp_read_barrier_depends()" in between those two reads for them to be ordered. The coontrol dependency that "READ_ONCE_CTRL()" and "atomic_read_ctrl()" had was a control dependency to a subsequent *write*, however, and nobody can finalize such a subsequent write without having actually done the read. And were you to write such a value to a "stale" cacheline (the way the unordered reads came to be), that would seem to lose the write entirely. So the things that make alpha able to re-order reads even more aggressively than other weak architectures do not seem to be relevant for a subsequent write. Alpha memory ordering may be strange, but there's no real indication that it is *that* strange. Also, the alpha architecture reference manual very explicitly talks about the definition of "Dependence Constraints" in section 5.6.1.7, where a preceding read dominates a subsequent write. Such a dependence constraint admittedly does not impose a BEFORE (alpha architecture term for globally visible ordering), but it does guarantee that there can be no "causal loop". I don't see how you could avoid such a loop if another cpu could see the stored value and then impact the value of the first read. Put another way: the read and the write could not be seen as being out of order wrt other cpus. So I do not see how these "x_ctrl()" functions can currently be necessary. I may have to eat my words at some point, but in the absense of clear proof that alpha actually needs this, or indeed even an explanation of how alpha could _possibly_ need it, I do not believe these functions are called for. And if it turns out that alpha really _does_ need a barrier for this case, that barrier still should not be "smp_read_barrier_depends()". We'd have to make up some new speciality barrier just for alpha, along with the documentation for why it really is necessary. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul E McKenney <paulmck@us.ibm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2015-11-03 17:22:17 -08:00
Alexander Shishkin	c2ad6b51ef	perf/ring-buffer: Clarify the use of page::private for high-order AUX allocations ... A question [1] was raised about the use of page::private in AUX buffer allocations, so let's add a clarification about its intended use. The private field and flag are used by perf's rb_alloc_aux() path to tell the pmu driver the size of each high-order allocation, so that the driver can program those appropriately into its hardware. This only matters for PMUs that don't support hardware scatter tables. Otherwise, every page in the buffer is just a page. This patch adds a comment about the private field to the AUX buffer allocation path. [1] http://marc.info/?l=linux-kernel&m=143803696607968 Reported-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1438063204-665-1-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-08-12 11:43:20 +02:00
Ben Hutchings	ee9397a6fb	perf: Fix double-free of the AUX buffer ... If rb->aux_refcount is decremented to zero before rb->refcount, __rb_free_aux() may be called twice resulting in a double free of rb->aux_pages. Fix this by adding a check to __rb_free_aux(). Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Fixes: 57ffc5ca67 ("perf: Fix AUX buffer refcounting") Link: http://lkml.kernel.org/r/1437953468.12842.17.camel@decadent.org.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-08-12 11:37:21 +02:00
Peter Zijlstra	57ffc5ca67	perf: Fix AUX buffer refcounting ... Its currently possible to drop the last refcount to the aux buffer from NMI context, which results in the expected fireworks. The refcounting needs a bigger overhaul, but to cure the immediate problem, delay the freeing by using an irq_work. Reviewed-and-tested-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20150618103249.GK19282@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-07-06 14:08:30 +02:00
Linus Torvalds	fc934d4017	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ... Pull RCU updates from Ingo Molnar: - Continued initialization/Kconfig updates: hide most Kconfig options from unsuspecting users. There's now a single high level configuration option: * * RCU Subsystem * Make expert-level adjustments to RCU configuration (RCU_EXPERT) [N/y/?] (NEW) Which if answered in the negative, leaves us with a single interactive configuration option: Offload RCU callback processing from boot-selected CPUs (RCU_NOCB_CPU) [N/y/?] (NEW) All the rest of the RCU options are configured automatically. Later on we'll remove this single leftover configuration option as well. - Remove all uses of RCU-protected array indexes: replace the rcu_[access|dereference]_index_check() APIs with READ_ONCE() and rcu_lockdep_assert() - RCU CPU-hotplug cleanups - Updates to Tiny RCU: a race fix and further code shrinkage. - RCU torture-testing updates: fixes, speedups, cleanups and documentation updates. - Miscellaneous fixes - Documentation updates * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits) rcutorture: Allow repetition factors in Kconfig-fragment lists rcutorture: Display "make oldconfig" errors rcutorture: Update TREE_RCU-kconfig.txt rcutorture: Make rcutorture scripts force RCU_EXPERT rcutorture: Update configuration fragments for rcutree.rcu_fanout_exact rcutorture: TASKS_RCU set directly, so don't explicitly set it rcutorture: Test SRCU cleanup code path rcutorture: Replace barriers with smp_store_release() and smp_load_acquire() locktorture: Change longdelay_us to longdelay_ms rcutorture: Allow negative values of nreaders to oversubscribe rcutorture: Exchange TREE03 and TREE08 NR_CPUS, speed up CPU hotplug rcutorture: Exchange TREE03 and TREE04 geometries locktorture: fix deadlock in 'rw_lock_irq' type rcu: Correctly handle non-empty Tiny RCU callback list with none ready rcutorture: Test both RCU-sched and RCU-bh for Tiny RCU rcu: Further shrink Tiny RCU by making empty functions static inlines rcu: Conditionally compile RCU's eqs warnings rcu: Remove prompt for RCU implementation rcu: Make RCU able to tolerate undefined CONFIG_RCU_KTHREAD_PRIO rcu: Make RCU able to tolerate undefined CONFIG_RCU_FANOUT_LEAF ...	2015-06-22 14:01:01 -07:00
Paul E. McKenney	5af4692a75	smp: Make control dependencies work on Alpha, improve documentation ... The current formulation of control dependencies fails on DEC Alpha, which does not respect dependencies of any kind unless an explicit memory barrier is provided. This means that the current fomulation of control dependencies fails on Alpha. This commit therefore creates a READ_ONCE_CTRL() that has the same overhead on non-Alpha systems, but causes Alpha to produce the needed ordering. This commit also applies READ_ONCE_CTRL() to the one known use of control dependencies. Use of READ_ONCE_CTRL() also has the beneficial effect of adding a bit of self-documentation to control dependencies. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>	2015-05-27 12:58:02 -07:00
Alexander Shishkin	aa319bcd36	perf: Disallow sparse AUX allocations for non-SG PMUs in overwrite mode ... PMUs that don't support hardware scatter tables require big contiguous chunks of memory and a PMI to switch between them. However, in overwrite using a PMI for this purpose adds extra overhead that the users would like to avoid. Thus, in overwrite mode for such PMUs we can only allow one contiguous chunk for the entire requested buffer. This patch changes the behavior accordingly, so that if the buddy allocator fails to come up with a single high-order chunk for the entire requested buffer, the allocation will fail. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@infradead.org Cc: adrian.hunter@intel.com Cc: hpa@zytor.com Link: http://lkml.kernel.org/r/1432308626-18845-2-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-05-27 09:16:20 +02:00
Alexander Shishkin	1a59413124	perf: Add wakeup watermark control to the AUX area ... When AUX area gets a certain amount of new data, we want to wake up userspace to collect it. This adds a new control to specify how much data will cause a wakeup. This is then passed down to pmu drivers via output handle's "wakeup" field, so that the driver can find the nearest point where it can generate an interrupt. We repurpose __reserved_2 in the event attribute for this, even though it was never checked to be zero before, aux_watermark will only matter for new AUX-aware code, so the old code should still be fine. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kaixu Xia <kaixu.xia@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Robert Richter <rric@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@infradead.org Cc: adrian.hunter@intel.com Cc: kan.liang@intel.com Cc: markus.t.metzger@intel.com Cc: mathieu.poirier@linaro.org Link: http://lkml.kernel.org/r/1421237903-181015-10-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-04-02 17:14:16 +02:00
Alexander Shishkin	2023a0d282	perf: Support overwrite mode for the AUX area ... This adds support for overwrite mode in the AUX area, which means "keep collecting data till you're stopped", turning AUX area into a circular buffer, where new data overwrites old data. It does not depend on data buffer's overwrite mode, so that it doesn't lose sideband data that is instrumental for processing AUX data. Overwrite mode is enabled at mapping AUX area read only. Even though aux_tail in the buffer's user page might be user writable, it will be ignored in this mode. A PERF_RECORD_AUX with PERF_AUX_FLAG_OVERWRITE set is written to the perf data stream every time an event writes new data to the AUX area. The pmu driver might not be able to infer the exact beginning of the new data in each snapshot, some drivers will only provide the tail, which is aux_offset + aux_size in the AUX record. Consumer has to be able to tell the new data from the old one, for example, by means of time stamps if such are provided in the trace. Consumer is also responsible for disabling any events that might write to the AUX area (thus potentially racing with the consumer) before collecting the data. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kaixu Xia <kaixu.xia@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Robert Richter <rric@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@infradead.org Cc: adrian.hunter@intel.com Cc: kan.liang@intel.com Cc: markus.t.metzger@intel.com Cc: mathieu.poirier@linaro.org Link: http://lkml.kernel.org/r/1421237903-181015-9-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-04-02 17:14:15 +02:00
Alexander Shishkin	fdc2670666	perf: Add API for PMUs to write to the AUX area ... For pmus that wish to write data to ring buffer's AUX area, provide perf_aux_output_{begin,end}() calls to initiate/commit data writes, similarly to perf_output_{begin,end}. These also use the same output handle structure. Also, similarly to software counterparts, these will direct inherited events' output to parents' ring buffers. After the perf_aux_output_begin() returns successfully, handle->size is set to the maximum amount of data that can be written wrt aux_tail pointer, so that no data that the user hasn't seen will be overwritten, therefore this should always be called before hardware writing is enabled. On success, this will return the pointer to pmu driver's private structure allocated for this aux area by pmu::setup_aux. Same pointer can also be retrieved using perf_get_aux() while hardware writing is enabled. PMU driver should pass the actual amount of data written as a parameter to perf_aux_output_end(). All hardware writes should be completed and visible before this one is called. Additionally, perf_aux_output_skip() will adjust output handle and aux_head in case some part of the buffer has to be skipped over to maintain hardware's alignment constraints. Nested writers are forbidden and guards are in place to catch such attempts. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kaixu Xia <kaixu.xia@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Robert Richter <rric@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@infradead.org Cc: adrian.hunter@intel.com Cc: kan.liang@intel.com Cc: markus.t.metzger@intel.com Cc: mathieu.poirier@linaro.org Link: http://lkml.kernel.org/r/1421237903-181015-8-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-04-02 17:14:13 +02:00
Alexander Shishkin	6a27923039	perf: Add a capability for AUX_NO_SG pmus to do software double buffering ... For pmus that don't support scatter-gather for AUX data in hardware, it might still make sense to implement software double buffering to avoid losing data while the user is reading data out. For this purpose, add a pmu capability that guarantees multiple high-order chunks for AUX buffer, so that the pmu driver can do switchover tricks. To make use of this feature, add PERF_PMU_CAP_AUX_SW_DOUBLEBUF to your pmu's capability mask. This will make the ring buffer AUX allocation code ensure that the biggest high order allocation for the aux buffer pages is no bigger than half of the total requested buffer size, thus making sure that the buffer has at least two high order allocations. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kaixu Xia <kaixu.xia@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Robert Richter <rric@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@infradead.org Cc: adrian.hunter@intel.com Cc: kan.liang@intel.com Cc: markus.t.metzger@intel.com Cc: mathieu.poirier@linaro.org Link: http://lkml.kernel.org/r/1421237903-181015-5-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-04-02 17:14:10 +02:00
Alexander Shishkin	0a4e38e64f	perf: Support high-order allocations for AUX space ... Some pmus (such as BTS or Intel PT without multiple-entry ToPA capability) don't support scatter-gather and will prefer larger contiguous areas for their output regions. This patch adds a new pmu capability to request higher order allocations. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kaixu Xia <kaixu.xia@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Robert Richter <rric@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@infradead.org Cc: adrian.hunter@intel.com Cc: kan.liang@intel.com Cc: markus.t.metzger@intel.com Cc: mathieu.poirier@linaro.org Link: http://lkml.kernel.org/r/1421237903-181015-4-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-04-02 17:14:08 +02:00
Peter Zijlstra	45bfb2e504	perf: Add AUX area to ring buffer for raw data streams ... This patch introduces "AUX space" in the perf mmap buffer, intended for exporting high bandwidth data streams to userspace, such as instruction flow traces. AUX space is a ring buffer, defined by aux_{offset,size} fields in the user_page structure, and read/write pointers aux_{head,tail}, which abide by the same rules as data_* counterparts of the main perf buffer. In order to allocate/mmap AUX, userspace needs to set up aux_offset to such an offset that will be greater than data_offset+data_size and aux_size to be the desired buffer size. Both need to be page aligned. Then, same aux_offset and aux_size should be passed to mmap() call and if everything adds up, you should have an AUX buffer as a result. Pages that are mapped into this buffer also come out of user's mlock rlimit plus perf_event_mlock_kb allowance. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kaixu Xia <kaixu.xia@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Robert Richter <rric@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@infradead.org Cc: adrian.hunter@intel.com Cc: kan.liang@intel.com Cc: markus.t.metzger@intel.com Cc: mathieu.poirier@linaro.org Link: http://lkml.kernel.org/r/1421237903-181015-3-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-04-02 17:13:46 +02:00
Jiri Olsa	7c60fc0e02	perf: Use POLLIN instead of POLL_IN for perf poll data in flag ... Currently we flag available data (via poll syscall) on perf fd with POLL_IN macro, which is normally used for SIGIO interface. We've been lucky, because POLLIN (0x1) is subset of POLL_IN (0x20001) and sys_poll (do_pollfd function) cut the extra bit out (0x20000). Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1422467678-22341-1-git-send-email-jolsa@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>	2015-02-04 08:07:13 +01:00