Re: [PATCH V2] locking/atomic: scripts: Increase template priority in order variants

From: kernel test robot
Date: Sat Nov 25 2023 - 04:50:30 EST

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Hi,

kernel test robot noticed the following build errors:

[auto build test ERROR on kees/for-next/pstore]
[also build test ERROR on kees/for-next/kspp]
[cannot apply to linus/master v6.7-rc2 next-20231124]
[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/guoren-kernel-org/locking-atomic-scripts-Increase-template-priority-in-order-variants/20231125-093207
base: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/pstore
patch link: https://lore.kernel.org/r/20231125013025.3620560-1-guoren%40kernel.org
patch subject: [PATCH V2] locking/atomic: scripts: Increase template priority in order variants
config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20231125/202311251758.xmI3qAhf-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231125/202311251758.xmI3qAhf-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311251758.xmI3qAhf-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
>> include/linux/atomic/atomic-arch-fallback.h:3961:9: error: invalid output size for constraint '+q'
return raw_xchg_acquire(&v->counter, new);
^
include/linux/atomic/atomic-arch-fallback.h:27:26: note: expanded from macro 'raw_xchg_acquire'
#define raw_xchg_acquire arch_xchg
^
arch/x86/include/asm/cmpxchg.h:78:27: note: expanded from macro 'arch_xchg'
#define arch_xchg(ptr, v) __xchg_op((ptr), (v), xchg, "")
^
arch/x86/include/asm/cmpxchg.h:48:19: note: expanded from macro '__xchg_op'
: "+q" (__ret), "+m" (*(ptr)) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
include/linux/atomic/atomic-arch-fallback.h:3985:9: error: invalid output size for constraint '+q'
return raw_xchg_release(&v->counter, new);
^
include/linux/atomic/atomic-arch-fallback.h:39:26: note: expanded from macro 'raw_xchg_release'
#define raw_xchg_release arch_xchg
^
arch/x86/include/asm/cmpxchg.h:78:27: note: expanded from macro 'arch_xchg'
#define arch_xchg(ptr, v) __xchg_op((ptr), (v), xchg, "")
^
arch/x86/include/asm/cmpxchg.h:48:19: note: expanded from macro '__xchg_op'
: "+q" (__ret), "+m" (*(ptr)) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
include/linux/atomic/atomic-arch-fallback.h:4006:9: error: invalid output size for constraint '+q'
return raw_xchg_relaxed(&v->counter, new);
^
include/linux/atomic/atomic-arch-fallback.h:48:26: note: expanded from macro 'raw_xchg_relaxed'
#define raw_xchg_relaxed arch_xchg
^
arch/x86/include/asm/cmpxchg.h:78:27: note: expanded from macro 'arch_xchg'
#define arch_xchg(ptr, v) __xchg_op((ptr), (v), xchg, "")
^
arch/x86/include/asm/cmpxchg.h:48:19: note: expanded from macro '__xchg_op'
: "+q" (__ret), "+m" (*(ptr)) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
>> include/linux/atomic/atomic-arch-fallback.h:4060:9: error: invalid output size for constraint '=a'
return raw_cmpxchg_acquire(&v->counter, old, new);
^
include/linux/atomic/atomic-arch-fallback.h:70:29: note: expanded from macro 'raw_cmpxchg_acquire'
#define raw_cmpxchg_acquire arch_cmpxchg
^
arch/x86/include/asm/cmpxchg.h:149:2: note: expanded from macro 'arch_cmpxchg'
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
^
arch/x86/include/asm/cmpxchg.h:134:2: note: expanded from macro '__cmpxchg'
__raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
^
arch/x86/include/asm/cmpxchg.h:95:17: note: expanded from macro '__raw_cmpxchg'
: "=a" (__ret), "+m" (*__ptr) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
>> include/linux/atomic/atomic-arch-fallback.h:4060:9: error: invalid output size for constraint '=a'
include/linux/atomic/atomic-arch-fallback.h:70:29: note: expanded from macro 'raw_cmpxchg_acquire'
#define raw_cmpxchg_acquire arch_cmpxchg
^
arch/x86/include/asm/cmpxchg.h:149:2: note: expanded from macro 'arch_cmpxchg'
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
^
arch/x86/include/asm/cmpxchg.h:134:2: note: expanded from macro '__cmpxchg'
__raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
^
arch/x86/include/asm/cmpxchg.h:104:17: note: expanded from macro '__raw_cmpxchg'
: "=a" (__ret), "+m" (*__ptr) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
>> include/linux/atomic/atomic-arch-fallback.h:4060:9: error: invalid output size for constraint '=a'
include/linux/atomic/atomic-arch-fallback.h:70:29: note: expanded from macro 'raw_cmpxchg_acquire'
#define raw_cmpxchg_acquire arch_cmpxchg
^
arch/x86/include/asm/cmpxchg.h:149:2: note: expanded from macro 'arch_cmpxchg'
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
^
arch/x86/include/asm/cmpxchg.h:134:2: note: expanded from macro '__cmpxchg'
__raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
^
arch/x86/include/asm/cmpxchg.h:113:17: note: expanded from macro '__raw_cmpxchg'
: "=a" (__ret), "+m" (*__ptr) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
>> include/linux/atomic/atomic-arch-fallback.h:4060:9: error: invalid output size for constraint '=a'
include/linux/atomic/atomic-arch-fallback.h:70:29: note: expanded from macro 'raw_cmpxchg_acquire'
#define raw_cmpxchg_acquire arch_cmpxchg
^
arch/x86/include/asm/cmpxchg.h:149:2: note: expanded from macro 'arch_cmpxchg'
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
^
arch/x86/include/asm/cmpxchg.h:134:2: note: expanded from macro '__cmpxchg'
__raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
^
arch/x86/include/asm/cmpxchg.h:122:17: note: expanded from macro '__raw_cmpxchg'
: "=a" (__ret), "+m" (*__ptr) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
include/linux/atomic/atomic-arch-fallback.h:4085:9: error: invalid output size for constraint '=a'
return raw_cmpxchg_release(&v->counter, old, new);
^
include/linux/atomic/atomic-arch-fallback.h:82:29: note: expanded from macro 'raw_cmpxchg_release'
#define raw_cmpxchg_release arch_cmpxchg
^
arch/x86/include/asm/cmpxchg.h:149:2: note: expanded from macro 'arch_cmpxchg'
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
^
arch/x86/include/asm/cmpxchg.h:134:2: note: expanded from macro '__cmpxchg'
__raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
^
arch/x86/include/asm/cmpxchg.h:95:17: note: expanded from macro '__raw_cmpxchg'
: "=a" (__ret), "+m" (*__ptr) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
include/linux/atomic/atomic-arch-fallback.h:4085:9: error: invalid output size for constraint '=a'
include/linux/atomic/atomic-arch-fallback.h:82:29: note: expanded from macro 'raw_cmpxchg_release'
#define raw_cmpxchg_release arch_cmpxchg
^
arch/x86/include/asm/cmpxchg.h:149:2: note: expanded from macro 'arch_cmpxchg'
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
^
arch/x86/include/asm/cmpxchg.h:134:2: note: expanded from macro '__cmpxchg'
__raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
^
arch/x86/include/asm/cmpxchg.h:104:17: note: expanded from macro '__raw_cmpxchg'
: "=a" (__ret), "+m" (*__ptr) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
include/linux/atomic/atomic-arch-fallback.h:4085:9: error: invalid output size for constraint '=a'
include/linux/atomic/atomic-arch-fallback.h:82:29: note: expanded from macro 'raw_cmpxchg_release'
#define raw_cmpxchg_release arch_cmpxchg
^
arch/x86/include/asm/cmpxchg.h:149:2: note: expanded from macro 'arch_cmpxchg'
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
^
arch/x86/include/asm/cmpxchg.h:134:2: note: expanded from macro '__cmpxchg'
__raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
^
arch/x86/include/asm/cmpxchg.h:113:17: note: expanded from macro '__raw_cmpxchg'
: "=a" (__ret), "+m" (*__ptr) \
^
In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
In file included from arch/x86/entry/vdso/vdso32/../vclock_gettime.c:11:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
In file included from arch/x86/include/asm/timex.h:5:
In file included from arch/x86/include/asm/processor.h:23:
In file included from arch/x86/include/asm/msr.h:11:
In file included from arch/x86/include/asm/cpumask.h:5:
In file included from include/linux/cpumask.h:13:
In file included from include/linux/atomic.h:80:
include/linux/atomic/atomic-arch-fallback.h:4085:9: error: invalid output size for constraint '=a'
include/linux/atomic/atomic-arch-fallback.h:82:29: note: expanded from macro 'raw_cmpxchg_release'
#define raw_cmpxchg_release arch_cmpxchg

vim +3961 include/linux/atomic/atomic-arch-fallback.h

d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3939
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3940 /**
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3941 * raw_atomic64_xchg_acquire() - atomic exchange with acquire ordering
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3942 * @v: pointer to atomic64_t
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3943 * @new: s64 value to assign
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3944 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3945 * Atomically updates @v to @new with acquire ordering.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3946 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3947 * Safe to use in noinstr code; prefer atomic64_xchg_acquire() elsewhere.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3948 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3949 * Return: The original value of @v.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3950 */
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3951 static __always_inline s64
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3952 raw_atomic64_xchg_acquire(atomic64_t *v, s64 new)
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3953 {
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3954 #if defined(arch_atomic64_xchg_acquire)
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3955 return arch_atomic64_xchg_acquire(v, new);
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3956 #elif defined(arch_atomic64_xchg_relaxed)
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3957 s64 ret = arch_atomic64_xchg_relaxed(v, new);
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3958 __atomic_acquire_fence();
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3959 return ret;
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3960 #else
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 @3961 return raw_xchg_acquire(&v->counter, new);
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3962 #endif
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3963 }
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3964
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3965 /**
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3966 * raw_atomic64_xchg_release() - atomic exchange with release ordering
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3967 * @v: pointer to atomic64_t
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3968 * @new: s64 value to assign
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3969 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3970 * Atomically updates @v to @new with release ordering.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3971 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3972 * Safe to use in noinstr code; prefer atomic64_xchg_release() elsewhere.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3973 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3974 * Return: The original value of @v.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3975 */
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3976 static __always_inline s64
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3977 raw_atomic64_xchg_release(atomic64_t *v, s64 new)
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3978 {
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3979 #if defined(arch_atomic64_xchg_release)
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3980 return arch_atomic64_xchg_release(v, new);
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3981 #elif defined(arch_atomic64_xchg_relaxed)
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3982 __atomic_release_fence();
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3983 return arch_atomic64_xchg_relaxed(v, new);
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3984 #else
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3985 return raw_xchg_release(&v->counter, new);
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 3986 #endif
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3987 }
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 3988
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3989 /**
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3990 * raw_atomic64_xchg_relaxed() - atomic exchange with relaxed ordering
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3991 * @v: pointer to atomic64_t
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3992 * @new: s64 value to assign
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3993 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3994 * Atomically updates @v to @new with relaxed ordering.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3995 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3996 * Safe to use in noinstr code; prefer atomic64_xchg_relaxed() elsewhere.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3997 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3998 * Return: The original value of @v.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 3999 */
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4000 static __always_inline s64
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4001 raw_atomic64_xchg_relaxed(atomic64_t *v, s64 new)
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4002 {
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4003 #if defined(arch_atomic64_xchg_relaxed)
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4004 return arch_atomic64_xchg_relaxed(v, new);
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4005 #else
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4006 return raw_xchg_relaxed(&v->counter, new);
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4007 #endif
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4008 }
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4009
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4010 /**
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4011 * raw_atomic64_cmpxchg() - atomic compare and exchange with full ordering
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4012 * @v: pointer to atomic64_t
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4013 * @old: s64 value to compare with
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4014 * @new: s64 value to assign
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4015 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4016 * If (@v == @old), atomically updates @v to @new with full ordering.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4017 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4018 * Safe to use in noinstr code; prefer atomic64_cmpxchg() elsewhere.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4019 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4020 * Return: The original value of @v.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4021 */
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4022 static __always_inline s64
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4023 raw_atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4024 {
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4025 #if defined(arch_atomic64_cmpxchg)
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4026 return arch_atomic64_cmpxchg(v, old, new);
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4027 #elif defined(arch_atomic64_cmpxchg_relaxed)
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4028 s64 ret;
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4029 __atomic_pre_full_fence();
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4030 ret = arch_atomic64_cmpxchg_relaxed(v, old, new);
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4031 __atomic_post_full_fence();
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 4032 return ret;
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4033 #else
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4034 return raw_cmpxchg(&v->counter, old, new);
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4035 #endif
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4036 }
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4037
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4038 /**
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4039 * raw_atomic64_cmpxchg_acquire() - atomic compare and exchange with acquire ordering
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4040 * @v: pointer to atomic64_t
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4041 * @old: s64 value to compare with
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4042 * @new: s64 value to assign
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4043 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4044 * If (@v == @old), atomically updates @v to @new with acquire ordering.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4045 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4046 * Safe to use in noinstr code; prefer atomic64_cmpxchg_acquire() elsewhere.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4047 *
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4048 * Return: The original value of @v.
ad8110706f3811 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4049 */
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4050 static __always_inline s64
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4051 raw_atomic64_cmpxchg_acquire(atomic64_t *v, s64 old, s64 new)
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4052 {
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4053 #if defined(arch_atomic64_cmpxchg_acquire)
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4054 return arch_atomic64_cmpxchg_acquire(v, old, new);
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4055 #elif defined(arch_atomic64_cmpxchg_relaxed)
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4056 s64 ret = arch_atomic64_cmpxchg_relaxed(v, old, new);
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4057 __atomic_acquire_fence();
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4058 return ret;
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4059 #else
9257959a6e5b4f include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 @4060 return raw_cmpxchg_acquire(&v->counter, old, new);
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4061 #endif
1d78814d41701c include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4062 }
d12157efc8e083 include/linux/atomic/atomic-arch-fallback.h Mark Rutland 2023-06-05 4063

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