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scsi: ufs: core: Remove redundant host_lock calls around UTRLCLR.

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There is no need to serialize single read/write calls to the host
controller registers. Remove the redundant host_lock calls that protect
access to the request list cLear register: UTRLCLR.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20241024075033.562562-4-avri.altman@wdc.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Avri Altman 2024-10-24 10:50:33 +03:00 committed by Martin K. Petersen
parent 5824e18b3d
commit 2a330f16ad
1 changed files with 0 additions and 3 deletions
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3
drivers/ufs/core/ufshcd.c
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@ -3062,7 +3062,6 @@ bool ufshcd_cmd_inflight(struct scsi_cmnd *cmd)
static int ufshcd_clear_cmd(struct ufs_hba *hba, u32 task_tag)
{
u32 mask;
unsigned long flags;
int err;
if (hba->mcq_enabled) {
@ -3082,9 +3081,7 @@ static int ufshcd_clear_cmd(struct ufs_hba *hba, u32 task_tag)
mask = 1U << task_tag;
/* clear outstanding transaction before retry */
spin_lock_irqsave(hba->host->host_lock, flags);
ufshcd_utrl_clear(hba, mask);
spin_unlock_irqrestore(hba->host->host_lock, flags);
/*
* wait for h/w to clear corresponding bit in door-bell.