[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20241022074319.512127-3-avri.altman@wdc.com>
Date: Tue, 22 Oct 2024 10:43:18 +0300
From: Avri Altman <avri.altman@....com>
To: "Martin K . Petersen" <martin.petersen@...cle.com>
Cc: linux-scsi@...r.kernel.org,
linux-kernel@...r.kernel.org,
Bart Van Assche <bvanassche@....org>,
Avri Altman <avri.altman@....com>
Subject: [PATCH v2 2/3] scsi: ufs: core: Remove redundant host_lock calls around UTMRLCLR
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 task management request List cLear register: UTMRLCLR.
Signed-off-by: Avri Altman <avri.altman@....com>
---
drivers/ufs/core/ufshcd.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 29f1cd3375bd..ca6b6df797fd 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -7012,14 +7012,11 @@ static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag)
{
int err = 0;
u32 mask = 1 << tag;
- unsigned long flags;
if (!test_bit(tag, &hba->outstanding_tasks))
goto out;
- spin_lock_irqsave(hba->host->host_lock, flags);
ufshcd_utmrl_clear(hba, tag);
- spin_unlock_irqrestore(hba->host->host_lock, flags);
/* poll for max. 1 sec to clear door bell register by h/w */
err = ufshcd_wait_for_register(hba,
--
2.25.1
Powered by blists - more mailing lists