On Thu, Dec 16, 2021 at 12:07:49PM +0200, Adrian Hunter wrote:
> From: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
>
> commit af21c3fd5b3ec540a97b367a70b26616ff7e0c55 upstream.
>
> Note for stable: This patch is required if commit edc0596cc04bf ("scsi:
> ufs: core: Stop clearing UNIT ATTENTIONS") has been cherry-picked.
>
> Commit 57d104c153d3 ("ufs: add UFS power management support") made the UFS
> driver submit a REQUEST SENSE command before submitting a power management
> command to a WLUN to clear the POWER ON unit attention. Instead of
> submitting a REQUEST SENSE command before submitting a power management
> command, retry the power management command until it succeeds.
>
> This is the preparation to get rid of all UNIT ATTENTION code which should
> be handled by users.
>
> Link: https://lore.kernel.org/r/20211001182015.1347587-2-jaegeuk@xxxxxxxxxx
> Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
> [Adrian: For stable]
> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> drivers/scsi/ufs/ufshcd.c | 12 +++++++++---
> 1 file changed, 9 insertions(+), 3 deletions(-)
Now queued up, thanks.
greg k-h
