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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-08-05 18:45:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-08-05 18:45:18 -0700 |
| commit | fb0d91991cedb51bc604c6b3915df75d8a59a4a3 (patch) | |
| tree | 7009374c28773354322e825620867412fbbdd8e0 | |
| parent | f6a691685962637e53371788fe2a72b171aedc68 (diff) | |
| parent | 0a8589055936d8feb56477123a8373ac634018fa (diff) | |
| download | kvm-s390-vfio-fb0d91991cedb51bc604c6b3915df75d8a59a4a3.tar.gz | |
Merge tag 'ata-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata fix from Damien Le Moal:
- Prevent the scsi disk driver from issuing a START STOP UNIT command
for ATA devices during system resume as this causes various issues
reported by multiple users.
* tag 'ata-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata,scsi: do not issue START STOP UNIT on resume
| -rw-r--r-- | drivers/ata/libata-scsi.c | 7 | ||||
| -rw-r--r-- | drivers/scsi/sd.c | 9 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 1 |
3 files changed, 14 insertions, 3 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 370d18aca71e87..c6ece32de8e31b 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1100,7 +1100,14 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev) } } else { sdev->sector_size = ata_id_logical_sector_size(dev->id); + /* + * Stop the drive on suspend but do not issue START STOP UNIT + * on resume as this is not necessary and may fail: the device + * will be woken up by ata_port_pm_resume() with a port reset + * and device revalidation. + */ sdev->manage_start_stop = 1; + sdev->no_start_on_resume = 1; } /* diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 68b12afa07219a..3c668cfb146d39 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3876,7 +3876,7 @@ static int sd_suspend_runtime(struct device *dev) static int sd_resume(struct device *dev) { struct scsi_disk *sdkp = dev_get_drvdata(dev); - int ret; + int ret = 0; if (!sdkp) /* E.g.: runtime resume at the start of sd_probe() */ return 0; @@ -3884,8 +3884,11 @@ static int sd_resume(struct device *dev) if (!sdkp->device->manage_start_stop) return 0; - sd_printk(KERN_NOTICE, sdkp, "Starting disk\n"); - ret = sd_start_stop_device(sdkp, 1); + if (!sdkp->device->no_start_on_resume) { + sd_printk(KERN_NOTICE, sdkp, "Starting disk\n"); + ret = sd_start_stop_device(sdkp, 1); + } + if (!ret) opal_unlock_from_suspend(sdkp->opal_dev); return ret; diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 75b2235b99e217..b9230b6add041d 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -194,6 +194,7 @@ struct scsi_device { unsigned no_start_on_add:1; /* do not issue start on add */ unsigned allow_restart:1; /* issue START_UNIT in error handler */ unsigned manage_start_stop:1; /* Let HLD (sd) manage start/stop */ + unsigned no_start_on_resume:1; /* Do not issue START_STOP_UNIT on resume */ unsigned start_stop_pwr_cond:1; /* Set power cond. in START_STOP_UNIT */ unsigned no_uld_attach:1; /* disable connecting to upper level drivers */ unsigned select_no_atn:1; |