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Date: Thu, 21 Apr 2022 14:41:51 +0800
From: kernel test robot <lkp@...el.com>
To: Ingo Molnar <mingo@...nel.org>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [mingo-tip:sched/headers 2360/2579] include/linux/signal.h:97:11:
error: array index 3 is past the end of the array (which contains 2
elements)
tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
head: 49e1ec6c70a6eb4b7de9250a455b8b63eb42afbe
commit: e43870d97c8fb5c656b4592457df87ac2ee05f7a [2360/2579] headers/deps: mm: Optimize <linux/mm_api.h> dependencies, remove <linux/mmzone_api.h> dependency
config: i386-randconfig-a002 (https://download.01.org/0day-ci/archive/20220421/202204210229.ZtiUn30E-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project bac6cd5bf85669e3376610cfc4c4f9ca015e7b9b)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=e43870d97c8fb5c656b4592457df87ac2ee05f7a
git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git
git fetch --no-tags mingo-tip sched/headers
git checkout e43870d97c8fb5c656b4592457df87ac2ee05f7a
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kvm/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from arch/x86/kvm/vmx/nested.c:9:
In file included from include/linux/pgtable_api.h:15:
In file included from include/linux/mmzone_api.h:33:
In file included from arch/x86/include/asm/highmem.h:26:
In file included from arch/x86/include/asm/tlbflush.h:5:
In file included from include/linux/mm_api.h:393:
include/linux/huge_mm.h:207:10: error: implicit declaration of function 'pmd_none' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
return !pmd_none(pmd) && !pmd_present(pmd);
^
include/linux/huge_mm.h:207:28: error: implicit declaration of function 'pmd_present' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
return !pmd_none(pmd) && !pmd_present(pmd);
^
include/linux/huge_mm.h:214:27: error: implicit declaration of function 'pmd_trans_huge' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
if (is_swap_pmd(*pmd) || pmd_trans_huge(*pmd) || pmd_devmap(*pmd))
^
include/linux/huge_mm.h:214:51: error: implicit declaration of function 'pmd_devmap' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
if (is_swap_pmd(*pmd) || pmd_trans_huge(*pmd) || pmd_devmap(*pmd))
^
include/linux/huge_mm.h:222:6: error: implicit declaration of function 'pud_trans_huge' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
if (pud_trans_huge(*pud) || pud_devmap(*pud))
^
include/linux/huge_mm.h:222:30: error: implicit declaration of function 'pud_devmap' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
if (pud_trans_huge(*pud) || pud_devmap(*pud))
^
include/linux/huge_mm.h:254:37: error: implicit declaration of function 'pmd_pfn' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
return READ_ONCE(huge_zero_pfn) == pmd_pfn(pmd) && pmd_present(pmd);
^
include/linux/huge_mm.h:254:53: error: implicit declaration of function 'pmd_present' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
return READ_ONCE(huge_zero_pfn) == pmd_pfn(pmd) && pmd_present(pmd);
^
In file included from arch/x86/kvm/vmx/nested.c:9:
In file included from include/linux/pgtable_api.h:19:
arch/x86/include/asm/pgtable.h:209:29: error: static declaration of 'pmd_pfn' follows non-static declaration
static inline unsigned long pmd_pfn(pmd_t pmd)
^
include/linux/huge_mm.h:254:37: note: previous implicit declaration is here
return READ_ONCE(huge_zero_pfn) == pmd_pfn(pmd) && pmd_present(pmd);
^
In file included from arch/x86/kvm/vmx/nested.c:9:
In file included from include/linux/pgtable_api.h:19:
arch/x86/include/asm/pgtable.h:250:19: error: static declaration of 'pmd_trans_huge' follows non-static declaration
static inline int pmd_trans_huge(pmd_t pmd)
^
include/linux/huge_mm.h:214:27: note: previous implicit declaration is here
if (is_swap_pmd(*pmd) || pmd_trans_huge(*pmd) || pmd_devmap(*pmd))
^
In file included from arch/x86/kvm/vmx/nested.c:9:
In file included from include/linux/pgtable_api.h:19:
arch/x86/include/asm/pgtable.h:744:19: error: static declaration of 'pmd_present' follows non-static declaration
static inline int pmd_present(pmd_t pmd)
^
include/linux/huge_mm.h:207:28: note: previous implicit declaration is here
return !pmd_none(pmd) && !pmd_present(pmd);
^
In file included from arch/x86/kvm/vmx/nested.c:9:
In file included from include/linux/pgtable_api.h:19:
arch/x86/include/asm/pgtable.h:773:19: error: static declaration of 'pmd_none' follows non-static declaration
static inline int pmd_none(pmd_t pmd)
^
include/linux/huge_mm.h:207:10: note: previous implicit declaration is here
return !pmd_none(pmd) && !pmd_present(pmd);
^
In file included from arch/x86/kvm/vmx/nested.c:9:
include/linux/pgtable_api.h:1201:19: error: static declaration of 'pmd_devmap' follows non-static declaration
static inline int pmd_devmap(pmd_t pmd)
^
include/linux/huge_mm.h:214:51: note: previous implicit declaration is here
if (is_swap_pmd(*pmd) || pmd_trans_huge(*pmd) || pmd_devmap(*pmd))
^
In file included from arch/x86/kvm/vmx/nested.c:9:
include/linux/pgtable_api.h:1205:19: error: static declaration of 'pud_devmap' follows non-static declaration
static inline int pud_devmap(pud_t pud)
^
include/linux/huge_mm.h:222:30: note: previous implicit declaration is here
if (pud_trans_huge(*pud) || pud_devmap(*pud))
^
In file included from arch/x86/kvm/vmx/nested.c:9:
include/linux/pgtable_api.h:1218:19: error: static declaration of 'pud_trans_huge' follows non-static declaration
static inline int pud_trans_huge(pud_t pud)
^
include/linux/huge_mm.h:222:6: note: previous implicit declaration is here
if (pud_trans_huge(*pud) || pud_devmap(*pud))
^
In file included from arch/x86/kvm/vmx/nested.c:25:
In file included from arch/x86/kvm/cpuid.h:5:
In file included from arch/x86/kvm/x86.h:5:
In file included from include/linux/kvm_host.h:17:
>> include/linux/signal.h:97:11: error: array index 3 is past the end of the array (which contains 2 elements) [-Werror,-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kvm/vmx/nested.c:25:
In file included from arch/x86/kvm/cpuid.h:5:
In file included from arch/x86/kvm/x86.h:5:
In file included from include/linux/kvm_host.h:17:
include/linux/signal.h:97:25: error: array index 2 is past the end of the array (which contains 2 elements) [-Werror,-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kvm/vmx/nested.c:25:
In file included from arch/x86/kvm/cpuid.h:5:
In file included from arch/x86/kvm/x86.h:5:
In file included from include/linux/kvm_host.h:17:
include/linux/signal.h:113:11: error: array index 3 is past the end of the array (which contains 2 elements) [-Werror,-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kvm/vmx/nested.c:25:
In file included from arch/x86/kvm/cpuid.h:5:
In file included from arch/x86/kvm/x86.h:5:
In file included from include/linux/kvm_host.h:17:
include/linux/signal.h:113:27: error: array index 3 is past the end of the array (which contains 2 elements) [-Werror,-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
vim +97 include/linux/signal.h
^1da177e4c3f41 Linus Torvalds 2005-04-16 92
71fabd5e483530 George Anzinger 2006-01-08 93 static inline int sigisemptyset(sigset_t *set)
71fabd5e483530 George Anzinger 2006-01-08 94 {
71fabd5e483530 George Anzinger 2006-01-08 95 switch (_NSIG_WORDS) {
71fabd5e483530 George Anzinger 2006-01-08 96 case 4:
71fabd5e483530 George Anzinger 2006-01-08 @97 return (set->sig[3] | set->sig[2] |
71fabd5e483530 George Anzinger 2006-01-08 98 set->sig[1] | set->sig[0]) == 0;
71fabd5e483530 George Anzinger 2006-01-08 99 case 2:
71fabd5e483530 George Anzinger 2006-01-08 100 return (set->sig[1] | set->sig[0]) == 0;
71fabd5e483530 George Anzinger 2006-01-08 101 case 1:
71fabd5e483530 George Anzinger 2006-01-08 102 return set->sig[0] == 0;
71fabd5e483530 George Anzinger 2006-01-08 103 default:
1c3bea0e71892e Oleg Nesterov 2014-10-13 104 BUILD_BUG();
71fabd5e483530 George Anzinger 2006-01-08 105 return 0;
71fabd5e483530 George Anzinger 2006-01-08 106 }
71fabd5e483530 George Anzinger 2006-01-08 107 }
71fabd5e483530 George Anzinger 2006-01-08 108
:::::: The code at line 97 was first introduced by commit
:::::: 71fabd5e4835309b4feca6209122ce56c595c461 [PATCH] sigaction should clear all signals on SIG_IGN, not just < 32
:::::: TO: George Anzinger <george@...sta.com>
:::::: CC: Linus Torvalds <torvalds@...osdl.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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