linux-kernel - [PATCH][next] raw: remove redundant pointers saddr and daddr

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Date:   Wed, 22 Jun 2022 12:49:12 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] raw: remove redundant pointers saddr and daddr

Pointers saddr and daddr are being assigned and are never used. The
pointers are redundant and can be removed.

Cleans up clang scan-build warnings:
net/ipv6/raw.c:348:3: warning: Value stored to 'saddr' is never read
net/ipv6/raw.c:349:3: warning: Value stored to 'daddr' is never read

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 net/ipv6/raw.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 46b560aacc11..722de9dd0ff7 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -332,7 +332,6 @@ static void rawv6_err(struct sock *sk, struct sk_buff *skb,
 void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
 		u8 type, u8 code, int inner_offset, __be32 info)
 {
-	const struct in6_addr *saddr, *daddr;
 	struct net *net = dev_net(skb->dev);
 	struct hlist_nulls_head *hlist;
 	struct hlist_nulls_node *hnode;
@@ -345,8 +344,6 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
 	sk_nulls_for_each(sk, hnode, hlist) {
 		/* Note: ipv6_hdr(skb) != skb->data */
 		const struct ipv6hdr *ip6h = (const struct ipv6hdr *)skb->data;
-		saddr = &ip6h->saddr;
-		daddr = &ip6h->daddr;
 
 		if (!raw_v6_match(net, sk, nexthdr, &ip6h->saddr, &ip6h->daddr,
 				  inet6_iif(skb), inet6_iif(skb)))
-- 
2.35.3