linux/drivers/ufs
Peter Wang 93e6c0e19d scsi: ufs: core: Clear cmd if abort succeeds in MCQ mode
In MCQ mode, if cmd is pending in device and abort succeeds, response will
not be returned by device. So we need clear the cmd, otherwise timeout will
happen and next time we use same tag we will get a WARN_ON(lrbp->cmd).

Below is error log:

  <3>[ 2277.447611][T21376] ufshcd-mtk 112b0000.ufshci: ufshcd_try_to_abort_task: cmd pending in the device. tag = 7
  <3>[ 2277.476954][T21376] ufshcd-mtk 112b0000.ufshci: Aborting tag 7 / CDB 0x2a succeeded
  <6>[ 2307.551263][T30974] ufshcd-mtk 112b0000.ufshci: ufshcd_abort: Device abort task at tag 7
  <4>[ 2307.623264][  T327] WARNING: CPU: 5 PID: 327 at source/drivers/ufs/core/ufshcd.c:3021 ufshcd_queuecommand+0x66c/0xe34

Fixes: ab248643d3 ("scsi: ufs: core: Add error handling for MCQ mode")
Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20231115131024.15829-1-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-11-24 20:35:24 -05:00
..
core scsi: ufs: core: Clear cmd if abort succeeds in MCQ mode 2023-11-24 20:35:24 -05:00
host scsi: ufs: core: Add support for parsing OPP 2023-10-16 20:59:21 -04:00
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