This is a note to let you know that I've just added the patch titled
scsi: ufs: Try harder to change the power mode
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
scsi-ufs-try-harder-to-change-the-power-mode.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f70636a91569e7c4032dd7baf9647c5f16f044d4
Author: Bart Van Assche <bvanassche@xxxxxxx>
Date: Tue Oct 18 13:29:55 2022 -0700
scsi: ufs: Try harder to change the power mode
[ Upstream commit 579a4e9dbd53978cad8df88dc612837cdd210ce0 ]
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.
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
Link: https://lore.kernel.org/r/20221018202958.1902564-8-bvanassche@xxxxxxx
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Stable-dep-of: fe8637f7708c ("scsi: ufs: core: Increase the START STOP UNIT timeout from one to ten seconds")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 977bd4b9dd0b4..36437d39b93c8 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -8830,9 +8830,11 @@ 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) {
