From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A888B191 for ; Sat, 20 Sep 2025 00:46:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758329213; cv=none; b=EY2UsR3vIOFXoLqwvgGnfb3vgTEu6zie4HtP0Lh+FXpMzGpvKNPcFOd4m/Owm0O/CiEmY6hJ7BFaeJe/r78sovB8thkxinUs00aFWK05eo3ehbhNO7WBbx+FU1TtMiY32KV16T84G8OAdu7m7RaMqFsdUI3vPR0+CmF5g95I4zQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758329213; c=relaxed/simple; bh=IZK4QCUIsmSsq8uucHTLaXbe91586eFSYBj7chNzAMA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=gQEXPZoJcEhPvAY2IseCS8dNGp5nF3t6cK9sqLKhDLIjoXM6QMaSaTqTysviQrCzD/w9XjEeI0hBUJPe6g+EeBvC1Kln57bgpPhbZ0htHr1vQMnmgbanVm2p8kD/DIjQJXcb5qVV1KVc4bULZ5zHAdr6mfWAmmPO+bSCORzKQyk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=bUvf98IH; arc=none smtp.client-ip=198.175.65.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="bUvf98IH" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1758329212; x=1789865212; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=IZK4QCUIsmSsq8uucHTLaXbe91586eFSYBj7chNzAMA=; b=bUvf98IHZ1WyGSygboeY8b2y0p1trooOvSXR02PpdQRWjdezNRMCnehH deVUEP60NAScAezSZjMgOGXg3SAW5ErsYLSjMwkvYSF+o++mO8ehibxG2 OgewJ4osFn2tMIQLYQ18i5j0pMLXVG3Og6OwhqAwvCoMWmRK8ot/7I6oE 8m2Vt6b2P6MA10G0uqErN3KGJGctofTJBsn3bg3jhfID2/Dy8lUU8TaiP aWU1lVumTmwnGDP+8EKJELbrTThy3XaPIoXXKMU5gAumXnjFmOxhgBzWY IwQdpcUvLY1pVNEI3hDDJ7M0N5OEmtROo4kWFjzoXebiixHrzxdBH21/H A==; X-CSE-ConnectionGUID: raGi1TtLQ3iNLoT+8zBUSw== X-CSE-MsgGUID: ukwQy8AST7q97KxHvpjtjQ== X-IronPort-AV: E=McAfee;i="6800,10657,11558"; a="71784982" X-IronPort-AV: E=Sophos;i="6.18,279,1751266800"; d="scan'208";a="71784982" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Sep 2025 17:46:52 -0700 X-CSE-ConnectionGUID: WoInC2IWSW6olGkG7QTKqg== X-CSE-MsgGUID: A9mArTNKQlujZhm4auirVA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,279,1751266800"; d="scan'208";a="181223585" Received: from lkp-server01.sh.intel.com (HELO 84a20bd60769) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 19 Sep 2025 17:46:48 -0700 Received: from kbuild by 84a20bd60769 with local (Exim 4.96) (envelope-from ) id 1uzlkT-0004vr-3D; Sat, 20 Sep 2025 00:46:46 +0000 Date: Sat, 20 Sep 2025 08:46:11 +0800 From: kernel test robot To: Adrian =?utf-8?Q?Barna=C5=9B?= , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, Adrian =?utf-8?Q?Barna=C5=9B?= , Catalin Marinas , Will Deacon , Ard Biesheuvel , Dylan Hatch , Mark Rutland , Fanqin Cui Subject: Re: [PATCH 2/2] arch: arm64: Reject modules with internal alternative callbacks Message-ID: <202509200821.Qy7LYrJP-lkp@intel.com> References: <20250919122321.946462-3-abarnas@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250919122321.946462-3-abarnas@google.com> Hi Adrian, kernel test robot noticed the following build warnings: [auto build test WARNING on arm/for-next] [also build test WARNING on arm/fixes kvmarm/next soc/for-next linus/master v6.17-rc6 next-20250919] [cannot apply to arm64/for-next/core] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Adrian-Barna/arch-arm64-Fail-module-loading-if-dynamic-SCS-patching-fails/20250919-202643 base: git://git.armlinux.org.uk/~rmk/linux-arm.git for-next patch link: https://lore.kernel.org/r/20250919122321.946462-3-abarnas%40google.com patch subject: [PATCH 2/2] arch: arm64: Reject modules with internal alternative callbacks config: arm64-allnoconfig (https://download.01.org/0day-ci/archive/20250920/202509200821.Qy7LYrJP-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250920/202509200821.Qy7LYrJP-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/202509200821.Qy7LYrJP-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/arm64/include/asm/sysreg.h:1111, from arch/arm64/include/asm/cputype.h:250, from arch/arm64/include/asm/cache.h:43, from include/vdso/cache.h:5, from include/linux/cache.h:6, from include/linux/slab.h:15, from include/linux/resource_ext.h:11, from include/linux/acpi.h:13, from include/acpi/apei.h:9, from include/acpi/ghes.h:5, from include/linux/arm_sdei.h:8, from arch/arm64/kernel/asm-offsets.c:10: arch/arm64/include/asm/alternative.h: In function 'apply_alternatives_module': >> arch/arm64/include/asm/alternative.h:31:1: warning: no return statement in function returning non-void [-Wreturn-type] 31 | static inline int apply_alternatives_module(void *start, size_t length) { } | ^~~~~~ -- In file included from arch/arm64/include/asm/sysreg.h:1111, from arch/arm64/include/asm/memory.h:223, from arch/arm64/include/asm/thread_info.h:17, from include/linux/thread_info.h:60, from arch/arm64/include/asm/preempt.h:6, from include/linux/preempt.h:79, from include/linux/spinlock.h:56, from include/linux/wait.h:9, from include/linux/wait_bit.h:8, from include/linux/fs.h:7, from arch/arm64/kernel/sys.c:11: arch/arm64/include/asm/alternative.h: In function 'apply_alternatives_module': >> arch/arm64/include/asm/alternative.h:31:1: warning: no return statement in function returning non-void [-Wreturn-type] 31 | static inline int apply_alternatives_module(void *start, size_t length) { } | ^~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h: At top level: arch/arm64/kernel/sys.c:58:40: warning: initialized field overwritten [-Woverride-init] 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ arch/arm64/kernel/sys.c:51:52: note: in expansion of macro '__SYSCALL' 51 | #define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native) | ^~~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:1:1: note: in expansion of macro '__SYSCALL_WITH_COMPAT' 1 | __SYSCALL_WITH_COMPAT(0, sys_io_setup, compat_sys_io_setup) | ^~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/sys.c:58:40: note: (near initialization for 'sys_call_table[0]') 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ arch/arm64/kernel/sys.c:51:52: note: in expansion of macro '__SYSCALL' 51 | #define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native) | ^~~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:1:1: note: in expansion of macro '__SYSCALL_WITH_COMPAT' 1 | __SYSCALL_WITH_COMPAT(0, sys_io_setup, compat_sys_io_setup) | ^~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/sys.c:58:40: warning: initialized field overwritten [-Woverride-init] 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:2:1: note: in expansion of macro '__SYSCALL' 2 | __SYSCALL(1, sys_io_destroy) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: note: (near initialization for 'sys_call_table[1]') 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:2:1: note: in expansion of macro '__SYSCALL' 2 | __SYSCALL(1, sys_io_destroy) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: warning: initialized field overwritten [-Woverride-init] 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ arch/arm64/kernel/sys.c:51:52: note: in expansion of macro '__SYSCALL' 51 | #define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native) | ^~~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:3:1: note: in expansion of macro '__SYSCALL_WITH_COMPAT' 3 | __SYSCALL_WITH_COMPAT(2, sys_io_submit, compat_sys_io_submit) | ^~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/sys.c:58:40: note: (near initialization for 'sys_call_table[2]') 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ arch/arm64/kernel/sys.c:51:52: note: in expansion of macro '__SYSCALL' 51 | #define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native) | ^~~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:3:1: note: in expansion of macro '__SYSCALL_WITH_COMPAT' 3 | __SYSCALL_WITH_COMPAT(2, sys_io_submit, compat_sys_io_submit) | ^~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/sys.c:58:40: warning: initialized field overwritten [-Woverride-init] 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:4:1: note: in expansion of macro '__SYSCALL' 4 | __SYSCALL(3, sys_io_cancel) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: note: (near initialization for 'sys_call_table[3]') 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:4:1: note: in expansion of macro '__SYSCALL' 4 | __SYSCALL(3, sys_io_cancel) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: warning: initialized field overwritten [-Woverride-init] 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:5:1: note: in expansion of macro '__SYSCALL' 5 | __SYSCALL(4, sys_io_getevents) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: note: (near initialization for 'sys_call_table[4]') 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:5:1: note: in expansion of macro '__SYSCALL' 5 | __SYSCALL(4, sys_io_getevents) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: warning: initialized field overwritten [-Woverride-init] 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:6:1: note: in expansion of macro '__SYSCALL' 6 | __SYSCALL(5, sys_setxattr) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: note: (near initialization for 'sys_call_table[5]') 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:6:1: note: in expansion of macro '__SYSCALL' 6 | __SYSCALL(5, sys_setxattr) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: warning: initialized field overwritten [-Woverride-init] 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:7:1: note: in expansion of macro '__SYSCALL' 7 | __SYSCALL(6, sys_lsetxattr) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: note: (near initialization for 'sys_call_table[6]') 58 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ ./arch/arm64/include/generated/asm/syscall_table_64.h:7:1: note: in expansion of macro '__SYSCALL' 7 | __SYSCALL(6, sys_lsetxattr) | ^~~~~~~~~ arch/arm64/kernel/sys.c:58:40: warning: initialized field overwritten [-Woverride-init] -- In file included from arch/arm64/include/asm/sysreg.h:1111, from arch/arm64/include/asm/cputype.h:250, from arch/arm64/include/asm/cache.h:43, from include/vdso/cache.h:5, from include/linux/cache.h:6, from arch/arm64/include/asm/processor.h:29, from include/linux/sched.h:13, from include/linux/context_tracking.h:5, from arch/arm64/kernel/traps.c:10: arch/arm64/include/asm/alternative.h: In function 'apply_alternatives_module': >> arch/arm64/include/asm/alternative.h:31:1: warning: no return statement in function returning non-void [-Wreturn-type] 31 | static inline int apply_alternatives_module(void *start, size_t length) { } | ^~~~~~ arch/arm64/kernel/traps.c: At top level: arch/arm64/kernel/traps.c:831:43: warning: initialized field overwritten [-Woverride-init] 831 | [ESR_ELx_EC_UNKNOWN] = "Unknown/Uncategorized", | ^~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:831:43: note: (near initialization for 'esr_class_str[0]') arch/arm64/kernel/traps.c:832:43: warning: initialized field overwritten [-Woverride-init] 832 | [ESR_ELx_EC_WFx] = "WFI/WFE", | ^~~~~~~~~ arch/arm64/kernel/traps.c:832:43: note: (near initialization for 'esr_class_str[1]') arch/arm64/kernel/traps.c:833:43: warning: initialized field overwritten [-Woverride-init] 833 | [ESR_ELx_EC_CP15_32] = "CP15 MCR/MRC", | ^~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:833:43: note: (near initialization for 'esr_class_str[3]') arch/arm64/kernel/traps.c:834:43: warning: initialized field overwritten [-Woverride-init] 834 | [ESR_ELx_EC_CP15_64] = "CP15 MCRR/MRRC", | ^~~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:834:43: note: (near initialization for 'esr_class_str[4]') arch/arm64/kernel/traps.c:835:43: warning: initialized field overwritten [-Woverride-init] 835 | [ESR_ELx_EC_CP14_MR] = "CP14 MCR/MRC", | ^~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:835:43: note: (near initialization for 'esr_class_str[5]') arch/arm64/kernel/traps.c:836:43: warning: initialized field overwritten [-Woverride-init] 836 | [ESR_ELx_EC_CP14_LS] = "CP14 LDC/STC", | ^~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:836:43: note: (near initialization for 'esr_class_str[6]') arch/arm64/kernel/traps.c:837:43: warning: initialized field overwritten [-Woverride-init] 837 | [ESR_ELx_EC_FP_ASIMD] = "ASIMD", | ^~~~~~~ arch/arm64/kernel/traps.c:837:43: note: (near initialization for 'esr_class_str[7]') arch/arm64/kernel/traps.c:838:43: warning: initialized field overwritten [-Woverride-init] 838 | [ESR_ELx_EC_CP10_ID] = "CP10 MRC/VMRS", | ^~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:838:43: note: (near initialization for 'esr_class_str[8]') arch/arm64/kernel/traps.c:839:43: warning: initialized field overwritten [-Woverride-init] 839 | [ESR_ELx_EC_PAC] = "PAC", | ^~~~~ arch/arm64/kernel/traps.c:839:43: note: (near initialization for 'esr_class_str[9]') arch/arm64/kernel/traps.c:840:43: warning: initialized field overwritten [-Woverride-init] 840 | [ESR_ELx_EC_CP14_64] = "CP14 MCRR/MRRC", | ^~~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:840:43: note: (near initialization for 'esr_class_str[12]') arch/arm64/kernel/traps.c:841:43: warning: initialized field overwritten [-Woverride-init] 841 | [ESR_ELx_EC_BTI] = "BTI", | ^~~~~ arch/arm64/kernel/traps.c:841:43: note: (near initialization for 'esr_class_str[13]') arch/arm64/kernel/traps.c:842:43: warning: initialized field overwritten [-Woverride-init] 842 | [ESR_ELx_EC_ILL] = "PSTATE.IL", | ^~~~~~~~~~~ arch/arm64/kernel/traps.c:842:43: note: (near initialization for 'esr_class_str[14]') arch/arm64/kernel/traps.c:843:43: warning: initialized field overwritten [-Woverride-init] 843 | [ESR_ELx_EC_SVC32] = "SVC (AArch32)", | ^~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:843:43: note: (near initialization for 'esr_class_str[17]') arch/arm64/kernel/traps.c:844:43: warning: initialized field overwritten [-Woverride-init] 844 | [ESR_ELx_EC_HVC32] = "HVC (AArch32)", | ^~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:844:43: note: (near initialization for 'esr_class_str[18]') arch/arm64/kernel/traps.c:845:43: warning: initialized field overwritten [-Woverride-init] 845 | [ESR_ELx_EC_SMC32] = "SMC (AArch32)", | ^~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:845:43: note: (near initialization for 'esr_class_str[19]') arch/arm64/kernel/traps.c:846:43: warning: initialized field overwritten [-Woverride-init] 846 | [ESR_ELx_EC_SVC64] = "SVC (AArch64)", | ^~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:846:43: note: (near initialization for 'esr_class_str[21]') arch/arm64/kernel/traps.c:847:43: warning: initialized field overwritten [-Woverride-init] 847 | [ESR_ELx_EC_HVC64] = "HVC (AArch64)", | ^~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:847:43: note: (near initialization for 'esr_class_str[22]') arch/arm64/kernel/traps.c:848:43: warning: initialized field overwritten [-Woverride-init] 848 | [ESR_ELx_EC_SMC64] = "SMC (AArch64)", | ^~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:848:43: note: (near initialization for 'esr_class_str[23]') arch/arm64/kernel/traps.c:849:43: warning: initialized field overwritten [-Woverride-init] 849 | [ESR_ELx_EC_SYS64] = "MSR/MRS (AArch64)", | ^~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:849:43: note: (near initialization for 'esr_class_str[24]') arch/arm64/kernel/traps.c:850:43: warning: initialized field overwritten [-Woverride-init] 850 | [ESR_ELx_EC_SVE] = "SVE", | ^~~~~ arch/arm64/kernel/traps.c:850:43: note: (near initialization for 'esr_class_str[25]') arch/arm64/kernel/traps.c:851:43: warning: initialized field overwritten [-Woverride-init] 851 | [ESR_ELx_EC_ERET] = "ERET/ERETAA/ERETAB", | ^~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:851:43: note: (near initialization for 'esr_class_str[26]') arch/arm64/kernel/traps.c:852:43: warning: initialized field overwritten [-Woverride-init] 852 | [ESR_ELx_EC_FPAC] = "FPAC", | ^~~~~~ arch/arm64/kernel/traps.c:852:43: note: (near initialization for 'esr_class_str[28]') arch/arm64/kernel/traps.c:853:43: warning: initialized field overwritten [-Woverride-init] 853 | [ESR_ELx_EC_SME] = "SME", | ^~~~~ arch/arm64/kernel/traps.c:853:43: note: (near initialization for 'esr_class_str[29]') arch/arm64/kernel/traps.c:854:43: warning: initialized field overwritten [-Woverride-init] 854 | [ESR_ELx_EC_IMP_DEF] = "EL3 IMP DEF", | ^~~~~~~~~~~~~ arch/arm64/kernel/traps.c:854:43: note: (near initialization for 'esr_class_str[31]') arch/arm64/kernel/traps.c:855:43: warning: initialized field overwritten [-Woverride-init] -- In file included from arch/arm64/include/asm/sysreg.h:1111, from arch/arm64/include/asm/cputype.h:250, from arch/arm64/include/asm/cache.h:43, from include/vdso/cache.h:5, from include/linux/cache.h:6, from include/linux/slab.h:15, from include/linux/resource_ext.h:11, from include/linux/acpi.h:13, from include/acpi/apei.h:9, from include/acpi/ghes.h:5, from include/linux/arm_sdei.h:8, from arch/arm64/kernel/asm-offsets.c:10: arch/arm64/include/asm/alternative.h: In function 'apply_alternatives_module': >> arch/arm64/include/asm/alternative.h:31:1: warning: no return statement in function returning non-void [-Wreturn-type] 31 | static inline int apply_alternatives_module(void *start, size_t length) { } | ^~~~~~ In file included from arch/arm64/include/asm/vdso/gettimeofday.h:10, from include/vdso/datapage.h:197, from lib/vdso/gettimeofday.c:5, from : arch/arm64/include/asm/alternative.h: In function 'apply_alternatives_module': >> arch/arm64/include/asm/alternative.h:31:1: warning: no return statement in function returning non-void [-Wreturn-type] 31 | static inline int apply_alternatives_module(void *start, size_t length) { } | ^~~~~~ In file included from arch/arm64/include/asm/vdso/gettimeofday.h:10, from include/vdso/datapage.h:197, from lib/vdso/getrandom.c:8, from : arch/arm64/include/asm/alternative.h: In function 'apply_alternatives_module': >> arch/arm64/include/asm/alternative.h:31:1: warning: no return statement in function returning non-void [-Wreturn-type] 31 | static inline int apply_alternatives_module(void *start, size_t length) { } | ^~~~~~ vim +31 arch/arm64/include/asm/alternative.h 27 28 #ifdef CONFIG_MODULES 29 int apply_alternatives_module(void *start, size_t length); 30 #else > 31 static inline int apply_alternatives_module(void *start, size_t length) { } 32 #endif 33 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki