* Re: [PATCH net v2] ipvs: fix MTU check for GSO packets in tunnel mode
[not found] <tencent_CA2C1C219C99D315086BE55E8654AF7E6009@qq.com>
@ 2026-04-07 10:38 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-04-07 10:38 UTC (permalink / raw)
To: Yingnan Zhang, horms, ja
Cc: llvm, oe-kbuild-all, pablo, fw, phil, davem, edumazet, kuba,
pabeni, netdev, lvs-devel, netfilter-devel, coreteam,
linux-kernel, Yingnan Zhang
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-rust (https://download.01.org/0day-ci/archive/20260407/202604071825.Sh4Y1fMi-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260407/202604071825.Sh4Y1fMi-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604071825.Sh4Y1fMi-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
>> net/netfilter/ipvs/ip_vs_xmit.c:115:2: warning: non-void function does not return a value in all control paths [-Wreturn-type]
115 | } else if (skb->len > mtu &&
| ^
>> net/netfilter/ipvs/ip_vs_xmit.c:115:4: error: expected identifier or '('
115 | } else if (skb->len > mtu &&
| ^
net/netfilter/ipvs/ip_vs_xmit.c:119:2: error: expected identifier or '('
119 | return false;
| ^
>> net/netfilter/ipvs/ip_vs_xmit.c:120:1: error: extraneous closing brace ('}')
120 | }
| ^
1 warning and 3 errors generated.
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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