From: kernel test robot <lkp@intel.com>
To: "Thomas Weißschuh " <thomas.weissschuh@linutronix.de>
Cc: oe-kbuild-all@lists.linux.dev
Subject: [thomas-weissschuh:b4/hrtimer-header-dependencies 6/11] include/linux/irqflags.h:44:22: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int
Date: Mon, 29 Jun 2026 23:15:57 +0800 [thread overview]
Message-ID: <202606292348.gUm6aNCM-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/linux.git b4/hrtimer-header-dependencies
head: e7540d8e6298bea30315e7fd29f5da9400aa6e9b
commit: d24aaca1864c88c09969af091d9e73559f47f5dd [6/11] percpu
config: x86_64-randconfig-122-20260629 (https://download.01.org/0day-ci/archive/20260629/202606292348.gUm6aNCM-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260629/202606292348.gUm6aNCM-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202606292348.gUm6aNCM-lkp@intel.com/
All errors (new ones prefixed by >>):
WARN /zdci/src/lkp/lib/log.sh:131:in `log_warn': /opt/cross/rustc-1.96.0-bindgen-0.72.1 doesn't exist
from /zdci/src/kernel-tests/lib/debug.sh:164: kbuild_log_warn
from /zdci/src/kernel-tests/lib/kbuild.sh:3371: export_rust_path
from /zdci/src/kernel-tests/lib/kbuild.sh:3361: export_compiler_path
from /zdci/src/kernel-tests/lib/kbuild.sh:3840: invoke_make
from /zdci/src/kernel-tests/lib/kbuild.sh:4022: make
from /zdci/src/kernel-tests/common.sh:202: redirect_error_to_screen
from /zdci/src/kernel-tests/common.sh:210: redirect_command_errors
from /zdci/src/kernel-tests/lib/kbuild.sh:5680: make_prepare
from /zdci/src/kernel-tests/lib/kbuild.sh:5909: test_kernel_build
from /zdci/src/kernel-tests/lib/builder/base.sh:442: builder_execute_build
from /zdci/src/kernel-tests/lib/kbuild.sh:6419: compile_one_config
from /zdci/src/kernel-tests/lib/builder/base.sh:88: builder_compile
from /zdci/src/kernel-tests/bisect-test-build-error.sh:101: main
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:15:
In file included from include/linux/completion.h:12:
In file included from include/linux/swait.h:7:
In file included from include/linux/spinlock.h:56:
In file included from include/linux/preempt.h:79:
In file included from arch/x86/include/asm/preempt.h:6:
In file included from arch/x86/include/asm/percpu.h:593:
In file included from include/asm-generic/percpu.h:8:
In file included from include/linux/irqflags.h:18:
In file included from arch/x86/include/asm/irqflags.h:9:
>> arch/x86/include/asm/nospec-branch.h:537:23: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
537 | DECLARE_PER_CPU(bool, x86_ibpb_exit_to_user);
| ^
| int
arch/x86/include/asm/nospec-branch.h:537:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
537 | DECLARE_PER_CPU(bool, x86_ibpb_exit_to_user);
| ^
| int
arch/x86/include/asm/nospec-branch.h:548:22: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
548 | DECLARE_PER_CPU(u64, x86_spec_ctrl_current);
| ^
| int
arch/x86/include/asm/nospec-branch.h:548:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
548 | DECLARE_PER_CPU(u64, x86_spec_ctrl_current);
| ^
| int
>> arch/x86/include/asm/nospec-branch.h:548:1: error: conflicting types for 'DECLARE_PER_CPU'
arch/x86/include/asm/nospec-branch.h:537:1: note: previous declaration is here
537 | DECLARE_PER_CPU(bool, x86_ibpb_exit_to_user);
| ^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:15:
In file included from include/linux/completion.h:12:
In file included from include/linux/swait.h:7:
In file included from include/linux/spinlock.h:56:
In file included from include/linux/preempt.h:79:
In file included from arch/x86/include/asm/preempt.h:6:
In file included from arch/x86/include/asm/percpu.h:593:
In file included from include/asm-generic/percpu.h:8:
>> include/linux/irqflags.h:44:22: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
44 | DECLARE_PER_CPU(int, hardirqs_enabled);
| ^
| int
include/linux/irqflags.h:44:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
44 | DECLARE_PER_CPU(int, hardirqs_enabled);
| ^
| int
>> include/linux/irqflags.h:44:1: error: conflicting types for 'DECLARE_PER_CPU'
arch/x86/include/asm/nospec-branch.h:537:1: note: previous declaration is here
537 | DECLARE_PER_CPU(bool, x86_ibpb_exit_to_user);
| ^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:15:
In file included from include/linux/completion.h:12:
In file included from include/linux/swait.h:7:
In file included from include/linux/spinlock.h:56:
In file included from include/linux/preempt.h:79:
In file included from arch/x86/include/asm/preempt.h:6:
In file included from arch/x86/include/asm/percpu.h:593:
In file included from include/asm-generic/percpu.h:8:
include/linux/irqflags.h:45:22: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
45 | DECLARE_PER_CPU(int, hardirq_context);
| ^
| int
include/linux/irqflags.h:45:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
45 | DECLARE_PER_CPU(int, hardirq_context);
| ^
| int
include/linux/irqflags.h:45:1: error: conflicting types for 'DECLARE_PER_CPU'
arch/x86/include/asm/nospec-branch.h:537:1: note: previous declaration is here
537 | DECLARE_PER_CPU(bool, x86_ibpb_exit_to_user);
| ^
In file included from arch/x86/kernel/asm-offsets.c:10:
In file included from include/crypto/aria.h:22:
In file included from include/linux/module.h:20:
In file included from include/linux/elf.h:6:
In file included from arch/x86/include/asm/elf.h:10:
In file included from arch/x86/include/asm/ia32.h:7:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:5:
In file included from include/linux/fs/super.h:5:
In file included from include/linux/fs/super_types.h:13:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:11: warning: array index 3 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
98 | return (set->sig[3] | set->sig[2] |
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from arch/x86/kernel/asm-offsets.c:10:
In file included from include/crypto/aria.h:22:
In file included from include/linux/module.h:20:
In file included from include/linux/elf.h:6:
In file included from arch/x86/include/asm/elf.h:10:
In file included from arch/x86/include/asm/ia32.h:7:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:5:
In file included from include/linux/fs/super.h:5:
In file included from include/linux/fs/super_types.h:13:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:25: warning: array index 2 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
98 | return (set->sig[3] | set->sig[2] |
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from arch/x86/kernel/asm-offsets.c:10:
In file included from include/crypto/aria.h:22:
In file included from include/linux/module.h:20:
In file included from include/linux/elf.h:6:
In file included from arch/x86/include/asm/elf.h:10:
In file included from arch/x86/include/asm/ia32.h:7:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:5:
In file included from include/linux/fs/super.h:5:
In file included from include/linux/fs/super_types.h:13:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:99:4: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
99 | set->sig[1] | set->sig[0]) == 0;
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from arch/x86/kernel/asm-offsets.c:10:
In file included from include/crypto/aria.h:22:
In file included from include/linux/module.h:20:
In file included from include/linux/elf.h:6:
In file included from arch/x86/include/asm/elf.h:10:
In file included from arch/x86/include/asm/ia32.h:7:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:5:
In file included from include/linux/fs/super.h:5:
In file included from include/linux/fs/super_types.h:13:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:101:11: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
101 | return (set->sig[1] | set->sig[0]) == 0;
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
vim +/int +44 include/linux/irqflags.h
a21ee6055c30ce Peter Zijlstra 2020-05-25 43
a21ee6055c30ce Peter Zijlstra 2020-05-25 @44 DECLARE_PER_CPU(int, hardirqs_enabled);
a21ee6055c30ce Peter Zijlstra 2020-05-25 45 DECLARE_PER_CPU(int, hardirq_context);
a21ee6055c30ce Peter Zijlstra 2020-05-25 46
:::::: The code at line 44 was first introduced by commit
:::::: a21ee6055c30ce68c4e201c6496f0ed2a1936230 lockdep: Change hardirq{s_enabled,_context} to per-cpu variables
:::::: TO: Peter Zijlstra <peterz@infradead.org>
:::::: CC: Peter Zijlstra <peterz@infradead.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-06-29 15:16 UTC|newest]
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