netdev - [PATCH linux-next] xfrm: Remove duplicate assignment

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Message-Id: <20211104062621.2643-1-luo.penghao@zte.com.cn>
Date:   Thu,  4 Nov 2021 06:26:21 +0000
From:   cgel.zte@...il.com
To:     Steffen Klassert <steffen.klassert@...unet.com>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, luo penghao <luo.penghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] xfrm: Remove duplicate assignment

From: luo penghao <luo.penghao@....com.cn>

The statement in the switch is repeated with the statement at the
beginning of the while loop, so this statement is meaningless.

The clang_analyzer complains as follows:

net/xfrm/xfrm_policy.c:3392:2 warning:

Value stored to 'exthdr' is never read

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: luo penghao <luo.penghao@....com.cn>
---
 net/xfrm/xfrm_policy.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 7f881f5..e8a31b9 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -3389,7 +3389,6 @@ decode_session6(struct sk_buff *skb, struct flowi *fl, bool reverse)
 		case NEXTHDR_DEST:
 			offset += ipv6_optlen(exthdr);
 			nexthdr = exthdr->nexthdr;
-			exthdr = (struct ipv6_opt_hdr *)(nh + offset);
 			break;
 		case IPPROTO_UDP:
 		case IPPROTO_UDPLITE:
-- 
2.15.2