[ammarfaizi2-block:stable/linux-stable-rc/queue/5.19 369/1034] net/ipv6/raw.c:338:40: warning: variable 'daddr' set but not used

From: kernel test robot
Date: Sat Aug 13 2022 - 19:47:04 EST


tree: https://github.com/ammarfaizi2/linux-block stable/linux-stable-rc/queue/5.19
head: a93eab25d54766b1d89d7fa7dd315b3fc268d0b5
commit: 097153d36084aaae5c40688aa5a424ac8d9cca5f [369/1034] raw: use more conventional iterators
config: i386-defconfig (https://download.01.org/0day-ci/archive/20220814/202208140715.Z91crNte-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/ammarfaizi2/linux-block/commit/097153d36084aaae5c40688aa5a424ac8d9cca5f
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block stable/linux-stable-rc/queue/5.19
git checkout 097153d36084aaae5c40688aa5a424ac8d9cca5f
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash net/ipv6/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

net/ipv6/raw.c: In function 'raw6_icmp_error':
>> net/ipv6/raw.c:338:40: warning: variable 'daddr' set but not used [-Wunused-but-set-variable]
338 | const struct in6_addr *saddr, *daddr;
| ^~~~~
>> net/ipv6/raw.c:338:32: warning: variable 'saddr' set but not used [-Wunused-but-set-variable]
338 | const struct in6_addr *saddr, *daddr;
| ^~~~~


vim +/daddr +338 net/ipv6/raw.c

334
335 void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
336 u8 type, u8 code, int inner_offset, __be32 info)
337 {
> 338 const struct in6_addr *saddr, *daddr;
339 struct net *net = dev_net(skb->dev);
340 struct hlist_head *head;
341 struct sock *sk;
342 int hash;
343
344 hash = nexthdr & (RAW_HTABLE_SIZE - 1);
345 head = &raw_v6_hashinfo.ht[hash];
346 read_lock(&raw_v6_hashinfo.lock);
347 sk_for_each(sk, head) {
348 /* Note: ipv6_hdr(skb) != skb->data */
349 const struct ipv6hdr *ip6h = (const struct ipv6hdr *)skb->data;
350 saddr = &ip6h->saddr;
351 daddr = &ip6h->daddr;
352
353 if (!raw_v6_match(net, sk, nexthdr, &ip6h->saddr, &ip6h->daddr,
354 inet6_iif(skb), inet6_iif(skb)))
355 continue;
356 rawv6_err(sk, skb, NULL, type, code, inner_offset, info);
357 }
358 read_unlock(&raw_v6_hashinfo.lock);
359 }
360

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0-DAY CI Kernel Test Service
https://01.org/lkp