linux-kernel - [PATCH] crypto: hisilicon/hpre - use swap() to make code cleaner

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Message-Id: <20211028110444.15287-1-deng.changcheng@zte.com.cn>
Date:   Thu, 28 Oct 2021 11:04:44 +0000
From:   cgel.zte@...il.com
To:     herbert@...dor.apana.org.au
Cc:     davem@...emloft.net, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Changcheng Deng <deng.changcheng@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] crypto: hisilicon/hpre - use swap() to make code cleaner

From: Changcheng Deng <deng.changcheng@....com.cn>

Use swap() in order to make code cleaner. Issue found by coccinelle.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Changcheng Deng <deng.changcheng@....com.cn>
---
 drivers/crypto/hisilicon/hpre/hpre_crypto.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/crypto/hisilicon/hpre/hpre_crypto.c b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
index a032c192ef1d..f7957197ef10 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_crypto.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
@@ -1177,13 +1177,10 @@ static void hpre_rsa_exit_tfm(struct crypto_akcipher *tfm)
 static void hpre_key_to_big_end(u8 *data, int len)
 {
 	int i, j;
-	u8 tmp;
 
 	for (i = 0; i < len / 2; i++) {
 		j = len - i - 1;
-		tmp = data[j];
-		data[j] = data[i];
-		data[i] = tmp;
+		swap(data[i], data[j]);
 	}
 }
 
-- 
2.25.1