linux-kernel - [PATCH] crypto: mediatek: remove redundant bitwise-or

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Message-Id: <20191023114824.30509-1-colin.king@canonical.com>
Date:   Wed, 23 Oct 2019 12:48:24 +0100
From:   Colin King <colin.king@...onical.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Vic Wu <vic.wu@...iatek.com>,
        Ryder Lee <ryder.lee@...iatek.com>,
        linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] crypto: mediatek: remove redundant bitwise-or

From: Colin Ian King <colin.king@...onical.com>

Bitwise-or'ing 0xffffffff with the u32 variable ctr is the same result
as assigning the value to ctr.  Remove the redundant bitwise-or and
just use an assignment.

Addresses-Coverity: ("Suspicious &= or |= constant expression")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/crypto/mediatek/mtk-aes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c
index 90c9644fb8a8..d43410259113 100644
--- a/drivers/crypto/mediatek/mtk-aes.c
+++ b/drivers/crypto/mediatek/mtk-aes.c
@@ -591,7 +591,7 @@ static int mtk_aes_ctr_transfer(struct mtk_cryp *cryp, struct mtk_aes_rec *aes)
 	start = ctr;
 	end = start + blocks - 1;
 	if (end < start) {
-		ctr |= 0xffffffff;
+		ctr = 0xffffffff;
 		datalen = AES_BLOCK_SIZE * -start;
 		fragmented = true;
 	}
-- 
2.20.1