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Hi Yingnan,
kernel test robot noticed the following build errors:
[auto build test ERROR on net/main]
url:
https://github.com/intel-lab-lkp/linux/commits/Yingnan-Zhang/ipvs-fix-MTU-check-for-GSO-packets-in-tunnel-mode/20260407-141549
base: net/main
patch link:
https://lore.kernel.org/r/tencent_CA2C1C219C99D315086BE55E8654AF7E6009%40qq.com
patch subject: [PATCH net v2] ipvs: fix MTU check for GSO packets in tunnel mode
config: x86_64-rhel-9.4-ltp
(https://download.01.org/0day-ci/archive/20260407/202604071309.RskiawHA-lkp@xxxxxxxxx/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build):
(https://download.01.org/0day-ci/archive/20260407/202604071309.RskiawHA-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes:
https://lore.kernel.org/oe-kbuild-all/202604071309.RskiawHA-lkp@xxxxxxxxx/
All error/warnings (new ones prefixed by >>):
>> net/netfilter/ipvs/ip_vs_xmit.c:115:11: error: expected identifier or '('
>> before 'else'
115 | } else if (skb->len > mtu &&
| ^~~~
>> net/netfilter/ipvs/ip_vs_xmit.c:119:9: error: expected identifier or '('
>> before 'return'
119 | return false;
| ^~~~~~
>> net/netfilter/ipvs/ip_vs_xmit.c:120:1: error: expected identifier or '('
>> before '}' token
120 | }
| ^
net/netfilter/ipvs/ip_vs_xmit.c: In function '__mtu_check_toobig_v6':
>> net/netfilter/ipvs/ip_vs_xmit.c:115:9: warning: control reaches end of
>> non-void function [-Wreturn-type]
115 | } else if (skb->len > mtu &&
| ^
vim +115 net/netfilter/ipvs/ip_vs_xmit.c
104
105 static inline bool
106 __mtu_check_toobig_v6(const struct sk_buff *skb, u32 mtu)
107 {
108 if (IP6CB(skb)->frag_max_size) {
109 /* frag_max_size tell us that, this packet have been
110 * defragmented by netfilter IPv6 conntrack module.
111 */
112 if (IP6CB(skb)->frag_max_size > mtu)
113 return true; /* largest fragment violate MTU */
114 }
> 115 } else if (skb->len > mtu &&
116 !(skb_is_gso(skb) &&
skb_gso_validate_network_len(skb, mtu))) {
117 return true; /* Packet size violate MTU size */
118 }
> 119 return false;
> 120 }
121
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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