linux-kernel - [PATCH] esp: Simplify the calculation of variables

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Message-Id: <1612320270-873-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Wed,  3 Feb 2021 10:44:30 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     steffen.klassert@...unet.com
Cc:     herbert@...dor.apana.org.au, davem@...emloft.net,
        yoshfuji@...ux-ipv6.org, dsahern@...nel.org, kuba@...nel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] esp: Simplify the calculation of variables

Fix the following coccicheck warnings:

./net/ipv6/esp6.c:791:16-18: WARNING !A || A && B is equivalent
to !A || B.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 net/ipv6/esp6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 2b804fc..153ad10 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -788,7 +788,7 @@ int esp6_input_done2(struct sk_buff *skb, int err)
 	int hlen = sizeof(struct ip_esp_hdr) + crypto_aead_ivsize(aead);
 	int hdr_len = skb_network_header_len(skb);
 
-	if (!xo || (xo && !(xo->flags & CRYPTO_DONE)))
+	if (!xo || !(xo->flags & CRYPTO_DONE))
 		kfree(ESP_SKB_CB(skb)->tmp);
 
 	if (unlikely(err))
-- 
1.8.3.1