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X-CSE-ConnectionGUID: iTVXhCZQTkeM/2f6LnwJCA== X-CSE-MsgGUID: pdFGoz5ORDKCCimJF7XvqQ== X-IronPort-AV: E=McAfee;i="6800,10657,11922"; a="108020350" X-IronPort-AV: E=Sophos;i="6.27,134,1787036400"; d="scan'208";a="108020350" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Oct 2026 09:59:08 -0700 X-CSE-ConnectionGUID: rYRZyl/1QFGIOBt9VDJHPg== X-CSE-MsgGUID: reHRoPHbS7iOMJxqdTXEIQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,134,1787036400"; d="scan'208";a="279344887" Received: from igk-lkp-server01.igk.intel.com (HELO 3fb566d470b1) ([10.211.93.152]) by orviesa004.jf.intel.com with ESMTP; 01 Oct 2026 09:59:07 -0700 Received: from kbuild by 3fb566d470b1 with local (Exim 4.98.2) (envelope-from ) id 1xCK7a-0000000009L-0P4T; Thu, 01 Oct 2026 16:59:02 +0000 Date: Thu, 01 Oct 2026 18:58:14 +0200 From: kernel test robot To: Fernando Fernandez Mancera Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, 0day robot Subject: include/net/route.h:176:63: warning: omitting the parameter name in a function definition is a C2x extension Message-ID: <202610011836.LY2TSmkY-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/intel-lab-lkp/linux/commits/Fernando-Fernandez-Mancera/ipv4-introduce-CONFIG_IPV4-to-decouple-the-IPv4-stack/20260928-212957 head: 9699ec4e92ef081fbb0e1a4247538ba53e5b17bf commit: 809c9f483b87854f5b7ede3ce9ac6e372855169c net: core: add IPv4 fallback stubs and guards for CONFIG_IPV4=n date: 3 days ago config: um-randconfig-2000-20261001 (https://download.01.org/0day-ci/archive/20261001/202610011836.LY2TSmkY-lkp@intel.com/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261001/202610011836.LY2TSmkY-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202610011836.LY2TSmkY-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from fs/eventpoll.c:23: In file included from include/linux/syscalls.h:95: In file included from include/trace/syscall.h:7: In file included from include/linux/trace_events.h:9: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:24: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1209 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from fs/eventpoll.c:42: In file included from include/net/busy_poll.h:18: In file included from include/net/ip.h:30: >> include/net/route.h:176:63: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions] 176 | static inline struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp, | ^ 2 warnings generated. vim +176 include/net/route.h 171 172 #if IS_ENABLED(CONFIG_IPV4) 173 struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp, 174 const struct sock *sk); 175 #else > 176 static inline struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp, 177 const struct sock *sk) 178 { 179 return ERR_PTR(-EAFNOSUPPORT); 180 } 181 #endif 182 struct dst_entry *ipv4_blackhole_route(struct net *net, 183 struct dst_entry *dst_orig); 184 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki