linux-kernel - [PATCH] scsi: target: sbp_target: Remove redundant assignment to pg

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Date:   Thu, 13 May 2021 18:49:37 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     bootc@...tc.net
Cc:     martin.petersen@...cle.com, linux-scsi@...r.kernel.org,
        target-devel@...r.kernel.org,
        linux1394-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] scsi: target: sbp_target: Remove redundant assignment to pg_size

Variable pg_size is set to '0x100 << pg_size', but this value is
never read as it is not used later on, hence it is a redundant
assignment and can be removed.

Clean up the following clang-analyzer warning:

drivers/target/sbp/sbp_target.c:1264:3: warning: Value stored to
'pg_size' is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/target/sbp/sbp_target.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
index ce84f93..4d3ceee 100644
--- a/drivers/target/sbp/sbp_target.c
+++ b/drivers/target/sbp/sbp_target.c
@@ -1261,7 +1261,6 @@ static int sbp_rw_data(struct sbp_target_request *req)
 	pg_size = CMDBLK_ORB_PG_SIZE(be32_to_cpu(req->orb.misc));
 	if (pg_size) {
 		pr_err("sbp_run_transaction: page size ignored\n");
-		pg_size = 0x100 << pg_size;
 	}
 
 	spin_lock_bh(&sess->lock);
-- 
1.8.3.1