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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	linux-scsi@vger.kernel.org,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Can Guo <cang@codeaurora.org>,
	linux-mediatek@lists.infradead.org,
	Stanley Chu <stanley.chu@mediatek.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 4.19 140/172] scsi: ufs: Don't update urgent bkops level when toggling auto bkops
Date: Wed, 17 Jun 2020 21:21:46 -0400	[thread overview]
Message-ID: <20200618012218.607130-140-sashal@kernel.org> (raw)
In-Reply-To: <20200618012218.607130-1-sashal@kernel.org>

From: Can Guo <cang@codeaurora.org>

[ Upstream commit be32acff43800c87dc5c707f5d47cc607b76b653 ]

Urgent bkops level is used to compare against actual bkops status read from
UFS device. Urgent bkops level is set during initialization and might be
updated in exception event handler during runtime. But it should not be
updated to the actual bkops status every time when auto bkops is toggled.
Otherwise, if urgent bkops level is updated to 0, auto bkops shall always
be kept enabled.

Link: https://lore.kernel.org/r/1590632686-17866-1-git-send-email-cang@codeaurora.org
Fixes: 24366c2afbb0 ("scsi: ufs: Recheck bkops level if bkops is disabled")
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ufshcd.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 803d67b3a166..bd21c9cdf818 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5122,7 +5122,6 @@ static int ufshcd_bkops_ctrl(struct ufs_hba *hba,
 		err = ufshcd_enable_auto_bkops(hba);
 	else
 		err = ufshcd_disable_auto_bkops(hba);
-	hba->urgent_bkops_lvl = curr_status;
 out:
 	return err;
 }
-- 
2.25.1


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      parent reply	other threads:[~2020-06-18  1:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200618012218.607130-1-sashal@kernel.org>
2020-06-18  1:19 ` [PATCH AUTOSEL 4.19 024/172] serial: 8250: Fix max baud limit in generic 8250 port Sasha Levin
2020-06-18  1:20 ` [PATCH AUTOSEL 4.19 054/172] arm64: dts: mt8173: fix unit name warnings Sasha Levin
2020-06-18  1:21 ` Sasha Levin [this message]

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