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X-CSE-ConnectionGUID: wDhAKlKRRgqQLN/nOKohHw== X-CSE-MsgGUID: Ba3J0/SXR16yN63nwPVffg== X-IronPort-AV: E=McAfee;i="6800,10657,11882"; a="113441186" X-IronPort-AV: E=Sophos;i="6.25,235,1779174000"; d="scan'208";a="113441186" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Aug 2026 14:49:12 -0700 X-CSE-ConnectionGUID: EkvgDv9ORUyEzBC9ZDfUfg== X-CSE-MsgGUID: a9/hsZLLQ669ZjXHf11Q2g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,235,1779174000"; d="scan'208";a="264685473" Received: from lkp-server01.sh.intel.com (HELO 6eda058d650d) ([10.239.97.150]) by orviesa006.jf.intel.com with ESMTP; 21 Aug 2026 14:49:11 -0700 Received: from kbuild by 6eda058d650d with local (Exim 4.98.2) (envelope-from ) id 1wxX6q-00000000qVJ-3z76; Fri, 21 Aug 2026 21:49:08 +0000 Date: Sat, 22 Aug 2026 05:48:52 +0800 From: kernel test robot To: cros-kernel-buildreports@googlegroups.com Cc: oe-kbuild-all@lists.linux.dev Subject: [android-common:android14-6.1 0/8] arch/x86/xen/enlighten_pv.c:650:24: warning: no previous prototype for function 'xen_pv_evtchn_do_upcall' Message-ID: <202608220519.3LglqRHS-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: Hi Brian, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://android.googlesource.com/kernel/common android14-6.1 head: 9fd3e1d56be51348e5fa5a1633a82a3e82987954 commit: 67d749f3e3516c7343ea6c7fdd38fd3dbfa05936 [0/8] x86/xen: Move Xen upcall handler config: x86_64-randconfig-004-20260822 (https://download.01.org/0day-ci/archive/20260822/202608220519.3LglqRHS-lkp@intel.com/config) compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260822/202608220519.3LglqRHS-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/202608220519.3LglqRHS-lkp@intel.com/ Note: functions only called from assembly code should be annotated with the asmlinkage attribute All warnings (new ones prefixed by >>): >> arch/x86/xen/enlighten_pv.c:650:24: warning: no previous prototype for function 'xen_pv_evtchn_do_upcall' [-Wmissing-prototypes] 650 | __visible noinstr void xen_pv_evtchn_do_upcall(struct pt_regs *regs) | ^ arch/x86/xen/enlighten_pv.c:650:19: note: declare 'static' if the function is not intended to be used outside of this translation unit 650 | __visible noinstr void xen_pv_evtchn_do_upcall(struct pt_regs *regs) | ^ | static arch/x86/xen/enlighten_pv.c:1301:34: warning: no previous prototype for function 'xen_start_kernel' [-Wmissing-prototypes] 1301 | asmlinkage __visible void __init xen_start_kernel(struct start_info *si) | ^ arch/x86/xen/enlighten_pv.c:1301:22: note: declare 'static' if the function is not intended to be used outside of this translation unit 1301 | asmlinkage __visible void __init xen_start_kernel(struct start_info *si) | ^ | static 2 warnings generated. vim +/xen_pv_evtchn_do_upcall +650 arch/x86/xen/enlighten_pv.c 649 > 650 __visible noinstr void xen_pv_evtchn_do_upcall(struct pt_regs *regs) 651 { 652 irqentry_state_t state = irqentry_enter(regs); 653 bool inhcall; 654 655 instrumentation_begin(); 656 run_sysvec_on_irqstack_cond(__xen_pv_evtchn_do_upcall, regs); 657 658 inhcall = get_and_clear_inhcall(); 659 if (inhcall && !WARN_ON_ONCE(state.exit_rcu)) { 660 irqentry_exit_cond_resched(); 661 instrumentation_end(); 662 restore_inhcall(inhcall); 663 } else { 664 instrumentation_end(); 665 irqentry_exit(regs, state); 666 } 667 } 668 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki