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X-CSE-ConnectionGUID: mq58M6+OSCO+62Sf13WCgA== X-CSE-MsgGUID: 6CxX+N6JQlGG21F8kiVMIA== X-IronPort-AV: E=McAfee;i="6800,10657,11928"; a="296968" X-IronPort-AV: E=Sophos;i="6.27,145,1787036400"; d="scan'208";a="296968" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2026 15:49:42 -0700 X-CSE-ConnectionGUID: L9+aKnaVRpygoRgwHCN0mQ== X-CSE-MsgGUID: EChRErJETs+p90TBrYaC1A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,145,1787036400"; d="scan'208";a="285511510" Received: from igk-lkp-server01.igk.intel.com (HELO d0de6c2a75a7) ([10.211.93.152]) by fmviesa003.fm.intel.com with ESMTP; 07 Oct 2026 15:49:40 -0700 Received: from kbuild by d0de6c2a75a7 with local (Exim 4.98.2) (envelope-from ) id 1xEaSA-000000004DJ-2ryT; Wed, 07 Oct 2026 22:49:38 +0000 Date: Thu, 08 Oct 2026 00:48:53 +0200 From: kernel test robot To: Kumar Kartikeya Dwivedi Cc: oe-kbuild-all@lists.linux.dev Subject: [kkdwivedi:mlp 58/59] fs/eventpoll.c:2166:undefined reference to `sock_from_file' Message-ID: <202610080055.22iqebug-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/kkdwivedi/linux mlp head: cb749145988a07c430f0cc8004d3d40b4227fe1f commit: 54493c2a59093e36a0f02fec2073203cd83bfb10 [58/59] epoll: Prefetch the ready items' files, sockets and socks ahead of delivery config: powerpc-randconfig-r2104-20261007 (https://download.01.org/0day-ci/archive/20261008/202610080055.22iqebug-lkp@intel.com/config) compiler: powerpc-linux-gcc (GCC) 13.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261008/202610080055.22iqebug-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/202610080055.22iqebug-lkp@intel.com/ All errors (new ones prefixed by >>): powerpc-linux-ld: fs/eventpoll.o: in function `ep_send_lookahead_step': >> fs/eventpoll.c:2166:(.text+0xebc): undefined reference to `sock_from_file' vim +2166 fs/eventpoll.c 2141 2142 static void ep_send_lookahead_step(struct ep_send_lookahead *la, 2143 const struct list_head *head) 2144 { 2145 struct epitem *next; 2146 struct sock *sk; 2147 2148 if (la->sock) { 2149 sk = READ_ONCE(la->sock->sk); 2150 if (sk) { 2151 /* what sock_poll and tcp_poll read: the state and 2152 * error, the receive queue and sequence numbers, the 2153 * wait queue, the send space 2154 */ 2155 prefetch(sk); 2156 prefetch(&sk->__cacheline_group_begin__sock_write_rx); 2157 prefetch(&sk->__cacheline_group_begin__sock_read_rx); 2158 prefetch(&sk->__cacheline_group_begin__sock_write_rxtx); 2159 prefetch(&sk->__cacheline_group_begin__sock_write_tx); 2160 prefetch(&sk->__cacheline_group_begin__sock_read_tx); 2161 prefetch(&tcp_sk(sk)->rcv_nxt); 2162 } 2163 la->sock = NULL; 2164 } 2165 if (la->file) { > 2166 la->sock = sock_from_file(la->file); 2167 if (la->sock) 2168 prefetch(la->sock); 2169 la->file = NULL; 2170 } 2171 if (la->item) { 2172 la->file = la->item->ffd.file; 2173 prefetch(la->file); 2174 next = list_next_entry(la->item, rdllink); 2175 la->item = &next->rdllink != head ? next : NULL; 2176 if (la->item) 2177 prefetch(la->item); 2178 } 2179 } 2180 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki