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X-CSE-ConnectionGUID: L8RySGo5TTGj2Pb8poVrhg== X-CSE-MsgGUID: kGP0aFi9R3SWyPWKOuM+4A== X-IronPort-AV: E=McAfee;i="6800,10657,11889"; a="99072130" X-IronPort-AV: E=Sophos;i="6.25,249,1779174000"; d="scan'208";a="99072130" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2026 17:38:30 -0700 X-CSE-ConnectionGUID: tGX1rakUS3Oe04r4ysFlPA== X-CSE-MsgGUID: ytN9OGygRsWC2IWJvtjSkw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,249,1779174000"; d="scan'208";a="267750579" Received: from lkp-server01.sh.intel.com (HELO 3532383e6126) ([10.239.97.150]) by orviesa008.jf.intel.com with ESMTP; 28 Aug 2026 17:38:29 -0700 Received: from kbuild by 3532383e6126 with local (Exim 4.98.2) (envelope-from ) id 1x075W-00000000CAw-3HUb; Sat, 29 Aug 2026 00:38:26 +0000 Date: Sat, 29 Aug 2026 08:37:41 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: include/linux/rseq_entry.h:880:3: error: call to undeclared function 'rseq_clear_one_shot_events'; ISO C99 and later do not support implicit function declarations Message-ID: <202608290830.9A528I8Q-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: :::::: :::::: Manual check reason: "bisect to a FBC not belonging to original linux-review patches: branch: linux-review/odion-efficios-com/rseq-uapi-add-rseq-operation-definitions/20260828-113339, commit: b48f8aaf42196bb53259f19916fd2afcd82ac10c" :::::: BCC: lkp@intel.com CC: llvm@lists.linux.dev CC: oe-kbuild-all@lists.linux.dev TO: Olivier Dion CC: 0day robot tree: https://github.com/intel-lab-lkp/linux/commits/odion-efficios-com/rseq-uapi-add-rseq-operation-definitions/20260828-113339 head: 6442a4dd9f55ba8a0f39522b330200e1b8548bd5 commit: b48f8aaf42196bb53259f19916fd2afcd82ac10c rseq: apply operations on exit to user space date: 9 hours ago :::::: branch date: 9 hours ago :::::: commit date: 9 hours ago config: arm-allnoconfig (https://download.01.org/0day-ci/archive/20260829/202608290830.9A528I8Q-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/20260829/202608290830.9A528I8Q-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/r/202608290830.9A528I8Q-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from kernel/rseq.c:78: >> include/linux/rseq_entry.h:880:3: error: call to undeclared function 'rseq_clear_one_shot_events'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 880 | rseq_clear_one_shot_events(ev); | ^ include/linux/rseq_entry.h:897:2: error: call to undeclared function 'rseq_clear_one_shot_events'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 897 | rseq_clear_one_shot_events(ev); | ^ 2 errors generated. vim +/rseq_clear_one_shot_events +880 include/linux/rseq_entry.h 05b44aef709cae5 Thomas Gleixner 2025-10-27 870 7a5201ea1907534 Thomas Gleixner 2025-10-27 871 static __always_inline void rseq_syscall_exit_to_user_mode(void) 7a5201ea1907534 Thomas Gleixner 2025-10-27 872 { 7a5201ea1907534 Thomas Gleixner 2025-10-27 873 struct rseq_event *ev = ¤t->rseq.event; 7a5201ea1907534 Thomas Gleixner 2025-10-27 874 7a5201ea1907534 Thomas Gleixner 2025-10-27 875 rseq_stat_inc(rseq_stats.exit); 7a5201ea1907534 Thomas Gleixner 2025-10-27 876 7a5201ea1907534 Thomas Gleixner 2025-10-27 877 /* Needed to remove the store for the !lockdep case */ 7a5201ea1907534 Thomas Gleixner 2025-10-27 878 if (IS_ENABLED(CONFIG_LOCKDEP)) { 7a5201ea1907534 Thomas Gleixner 2025-10-27 879 WARN_ON_ONCE(ev->sched_switch); b48f8aaf42196bb Olivier Dion 2026-08-28 @880 rseq_clear_one_shot_events(ev); 7a5201ea1907534 Thomas Gleixner 2025-10-27 881 } 7a5201ea1907534 Thomas Gleixner 2025-10-27 882 } 7a5201ea1907534 Thomas Gleixner 2025-10-27 883 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki