linux-kernel - [PATCH] aoe: remove redundant assignment on variable n

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Date:   Thu, 13 Jan 2022 00:05:45 +0000
From:   Colin Ian King <colin.i.king@...il.com>
To:     Justin Sanders <justin@...aid.com>, Jens Axboe <axboe@...nel.dk>,
        linux-block@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: [PATCH] aoe: remove redundant assignment on variable n

The variable n is being bit-wise or'd with a value and reassigned
before being returned. The update of n is redundant, replace
the |= operator with | instead. Cleans up clang scan warning:

drivers/block/aoe/aoecmd.c:125:9: warning: Although the value stored
to 'n' is used in the enclosing expression, the value is never
actually read from 'n' [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/block/aoe/aoecmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 588889bea7c3..6af111f568e4 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -122,7 +122,7 @@ newtag(struct aoedev *d)
 	register ulong n;
 
 	n = jiffies & 0xffff;
-	return n |= (++d->lasttag & 0x7fff) << 16;
+	return n | (++d->lasttag & 0x7fff) << 16;
 }
 
 static u32
-- 
2.33.1