From: luo penghao <luo.penghao@zte.com.cn>
Date: Thu, 4 Nov 2021 06:26:21 +0000 (+0000)
Subject: xfrm: Remove duplicate assignment
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2e1809208a4a52e883527c288b4fca61a90100b2;p=linux.git

xfrm: Remove duplicate assignment

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@zte.com.cn>
Signed-off-by: luo penghao <luo.penghao@zte.com.cn>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 1a06585022abb..edc673e78114f 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -3392,7 +3392,6 @@ 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: