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/[email protected]/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/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ 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
