anierin/msm-5.15
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

FROMGIT: scsi: ufs: Try harder to change the power mode

Browse Source 
Instead of only retrying the START STOP UNIT command if a unit attention is
reported, repeat it if any SCSI error is reported by the device or if the
command timed out.

Change-Id: I231b641942239cbcfba31058137a41e0277380a6
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20221018202958.1902564-8-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 258234315
(cherry picked from commit 579a4e9dbd53978cad8df88dc612837cdd210ce0 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
This commit is contained in:
Bart Van Assche
2022-10-18 13:29:55 -07:00
committed by Bart Van Assche
parent cfc314cd6f
commit 18eaf71786
1 changed files with 5 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/scsi/ufs/ufshcd.c
View File

@@ -8696,9 +8696,11 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
for (retries = 3; retries > 0; --retries) {
ret = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, &sshdr,
HZ, 0, 0, RQF_PM, NULL);
if (!scsi_status_is_check_condition(ret) ||
!scsi_sense_valid(&sshdr) ||
sshdr.sense_key != UNIT_ATTENTION)
/*
* scsi_execute() only returns a negative value if the request
* queue is dying.
*/
if (ret <= 0)
break;
}
if (ret) {