linux-kernel - [PATCH] scsi: 3w-9xxx: remove useless variable

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Message-Id: <1618196604-101870-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Mon, 12 Apr 2021 11:03:24 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     aradford@...il.com
Cc:     jejb@...ux.ibm.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] scsi: 3w-9xxx: remove useless variable

Fix the following gcc warning:

drivers/scsi/3w-9xxx.c:942:24: warning: variable ‘response_que_value’
set but not used [-Wunused-but-set-variable].

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/scsi/3w-9xxx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index b96e82d..1856a99 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -939,13 +939,13 @@ static int twa_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value)
 /* This function will empty the response queue */
 static int twa_empty_response_queue(TW_Device_Extension *tw_dev)
 {
-	u32 status_reg_value, response_que_value;
+	u32 status_reg_value;
 	int count = 0, retval = 1;
 
 	status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
 
 	while (((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) && (count < TW_MAX_RESPONSE_DRAIN)) {
-		response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
+		readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
 		status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
 		count++;
 	}
-- 
1.8.3.1