From: kernel test robot <lkp@intel.com>
To: Boqun Feng <boqun@kernel.org>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [boqun:rust-sync 9/12] arch/x86/include/asm/preempt.h:126:25: error: expected string literal in 'asm'
Date: Wed, 06 May 2026 07:06:58 +0800 [thread overview]
Message-ID: <202605060617.RUqPcONX-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git rust-sync
head: 082cc4c201e4450ff9456c9bd093fd70d103595a
commit: 40c3e04e2248c0e5d78d23e6767a1c58d5678eac [9/12] preempt: x86: Avoid tracking NMI separately when 64BIT=y
config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20260506/202605060617.RUqPcONX-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260506/202605060617.RUqPcONX-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/202605060617.RUqPcONX-lkp@intel.com/
All errors (new ones prefixed by >>):
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:92:
>> arch/x86/include/asm/preempt.h:126:25: error: expected string literal in 'asm'
126 | return GEN_UNARY_RMWcc(IS_ENABLED(CONFIG_PREEMPT_LONG) ? "decq":
| ^
include/linux/kconfig.h:73:28: note: expanded from macro 'IS_ENABLED'
73 | #define IS_ENABLED(option) __or(IS_BUILTIN(option), IS_MODULE(option))
| ^
include/linux/kconfig.h:24:22: note: expanded from macro '__or'
24 | #define __or(x, y) ___or(x, y)
| ^
include/linux/kconfig.h:25:23: note: expanded from macro '___or'
25 | #define ___or(x, y) ____or(__ARG_PLACEHOLDER_##x, y)
| ^
include/linux/kconfig.h:26:65: note: expanded from macro '____or'
26 | #define ____or(arg1_or_junk, y) __take_second_arg(arg1_or_junk 1, y)
| ^
In file included from arch/x86/kernel/asm-offsets.c:14:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.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:14:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.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:14:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.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:14:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.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];
| ^
In file included from arch/x86/kernel/asm-offsets.c:14:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.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:114:11: warning: array index 3 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
114 | return (set1->sig[3] == set2->sig[3]) &&
| ^ ~
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:14:
vim +/asm +126 arch/x86/include/asm/preempt.h
118
119 /*
120 * Because we keep PREEMPT_NEED_RESCHED set when we do _not_ need to reschedule
121 * a decrement which hits zero means we have no preempt_count and should
122 * reschedule.
123 */
124 static __always_inline bool __preempt_count_dec_and_test(void)
125 {
> 126 return GEN_UNARY_RMWcc(IS_ENABLED(CONFIG_PREEMPT_LONG) ? "decq":
127 "decl", __my_cpu_var(__preempt_count), e,
128 __percpu_arg([var]));
129 }
130
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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