RE: [PATCH 5/8] scsi: ufs: Try harder to change the power mode

Avri Altman
2022-09-27T10:41:26Z

> 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@acm.org>
> ---
> drivers/ufs/core/ufshcd.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index 02e73208b921..e8c0504e9e83 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -8784,9 +8784,9 @@ 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,
> START_STOP_TIMEOUT, 0, 0, RQF_PM, NULL);
> - if (!scsi_status_is_check_condition(ret) ||
> - !scsi_sense_valid(&sshdr) ||
> - sshdr.sense_key != UNIT_ATTENTION)
> + if (ret < 0)
> + break;
continue?

Thanks,
Avri
> + if (host_byte(ret) == 0 && scsi_status_is_good(ret))
> break;
> }
> if (ret) {