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FROMGIT: scsi: ufs: Remove a redundant command completion logic in error handler

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ufshcd_host_reset_and_restore() anyways completes all pending requests
before starts re-probing, so there is no need to complete the command on
the highest bit in tr_doorbell in advance.

Link: https://lore.kernel.org/r/1621845419-14194-2-git-send-email-cang@codeaurora.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Bug: 190637035
(cherry picked from commit 1cca0c3fdc91db15bbcd58c4dc49b7b97d0891fe
 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 5.14/scsi-staging)
Change-Id: Iabcf44f49119de956016e25c2be2f58324fac240
Signed-off-by: Can Guo <cang@codeaurora.org>
This commit is contained in:
Can Guo
2021-05-24 01:36:56 -07:00
committed by Sandeep Patil
parent 53fa86c571
commit a0679e6b5c
1 changed files with 0 additions and 13 deletions
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13
drivers/scsi/ufs/ufshcd.c
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@@ -6084,19 +6084,6 @@ lock_skip_pending_xfer_clear:
do_reset:
/* Fatal errors need reset */
if (needs_reset) {
unsigned long max_doorbells = (1UL << hba->nutrs) - 1;
/*
* ufshcd_reset_and_restore() does the link reinitialization
* which will need atleast one empty doorbell slot to send the
* device management commands (NOP and query commands).
* If there is no slot empty at this moment then free up last
* slot forcefully.
*/
if (hba->outstanding_reqs == max_doorbells)
__ufshcd_transfer_req_compl(hba,
(1UL << (hba->nutrs - 1)));
hba->force_reset = false;
spin_unlock_irqrestore(hba->host->host_lock, flags);
err = ufshcd_reset_and_restore(hba);