From 7f3af94cc05abfb87d4eeec13929fecaf02ea3ae Mon Sep 17 00:00:00 2001 From: Niklas Cassel Date: Mon, 24 Nov 2025 14:20:34 -0500 Subject: [PATCH] ata: libata-scsi: Fix system suspend for a security locked drive [ Upstream commit b11890683380a36b8488229f818d5e76e8204587 ] Commit cf3fc037623c ("ata: libata-scsi: Fix ata_to_sense_error() status handling") fixed ata_to_sense_error() to properly generate sense key ABORTED COMMAND (without any additional sense code), instead of the previous bogus sense key ILLEGAL REQUEST with the additional sense code UNALIGNED WRITE COMMAND, for a failed command. However, this broke suspend for Security locked drives (drives that have Security enabled, and have not been Security unlocked by boot firmware). The reason for this is that the SCSI disk driver, for the Synchronize Cache command only, treats any sense data with sense key ILLEGAL REQUEST as a successful command (regardless of ASC / ASCQ). After commit cf3fc037623c ("ata: libata-scsi: Fix ata_to_sense_error() status handling") the code that treats any sense data with sense key ILLEGAL REQUEST as a successful command is no longer applicable, so the command fails, which causes the system suspend to be aborted: sd 1:0:0:0: PM: dpm_run_callback(): scsi_bus_suspend returns -5 sd 1:0:0:0: PM: failed to suspend async: error -5 PM: Some devices failed to suspend, or early wake event detected To make suspend work once again, for a Security locked device only, return sense data LOGICAL UNIT ACCESS NOT AUTHORIZED, the actual sense data which a real SCSI device would have returned if locked. The SCSI disk driver treats this sense data as a successful command. Cc: stable@vger.kernel.org Reported-by: Ilia Baryshnikov Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220704 Fixes: cf3fc037623c ("ata: libata-scsi: Fix ata_to_sense_error() status handling") Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen Reviewed-by: Damien Le Moal Signed-off-by: Niklas Cassel [ Adjust context ] Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ulrich Hecht --- drivers/ata/libata-scsi.c | 8 ++++++++ include/linux/ata.h | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index c4eb56d206de..ab51400e2102 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1194,6 +1194,14 @@ static void ata_gen_ata_sense(struct ata_queued_cmd *qc) ata_scsi_set_sense(dev, cmd, NOT_READY, 0x04, 0x21); return; } + + if (ata_id_is_locked(dev->id)) { + /* Security locked */ + /* LOGICAL UNIT ACCESS NOT AUTHORIZED */ + ata_scsi_set_sense(dev, cmd, DATA_PROTECT, 0x74, 0x71); + return; + } + /* Use ata_to_sense_error() to map status register bits * onto sense key, asc & ascq. */ diff --git a/include/linux/ata.h b/include/linux/ata.h index 981eb1cb7e49..724600a022f9 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -573,6 +573,7 @@ struct ata_bmdma_prd { #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8)) #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) #define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) +#define ata_id_is_locked(id) (((id)[ATA_ID_DLF] & 0x7) == 0x7) #define ata_id_has_atapi_AN(id) \ ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \