diff options
| author | Dmitry Vyukov <dvyukov@google.com> | 2017-05-26 20:29:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-12 13:22:46 +0300 |
| commit | 2a6f0cec5c8e564569ad6411a446051a3bd1b5b1 (patch) | |
| tree | b03815c81db85452d99f44ff072331ed1f18e155 /arch | |
| parent | a3ac1b428c6148ecd8235ff37c34ff726168b62c (diff) | |
| download | linux-2a6f0cec5c8e564569ad6411a446051a3bd1b5b1.tar.xz | |
locking/x86: Remove the unused atomic_inc_short() methd
commit 31b35f6b4d5285a311e10753f4eb17304326b211 upstream.
It is completely unused and implemented only on x86.
Remove it.
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170526172900.91058-1-dvyukov@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/tile/lib/atomic_asm_32.S | 3 | ||||
| -rw-r--r-- | arch/x86/include/asm/atomic.h | 13 |
2 files changed, 1 insertions, 15 deletions
diff --git a/arch/tile/lib/atomic_asm_32.S b/arch/tile/lib/atomic_asm_32.S index f611265633d6..6d6c2fecb0c1 100644 --- a/arch/tile/lib/atomic_asm_32.S +++ b/arch/tile/lib/atomic_asm_32.S @@ -24,8 +24,7 @@ * has an opportunity to return -EFAULT to the user if needed. * The 64-bit routines just return a "long long" with the value, * since they are only used from kernel space and don't expect to fault. - * Support for 16-bit ops is included in the framework but we don't provide - * any (x86_64 has an atomic_inc_short(), so we might want to some day). + * Support for 16-bit ops is included in the framework but we don't provide any. * * Note that the caller is advised to issue a suitable L1 or L2 * prefetch on the address being manipulated to avoid extra stalls. diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h index 249fa6b27557..afc2387323c9 100644 --- a/arch/x86/include/asm/atomic.h +++ b/arch/x86/include/asm/atomic.h @@ -220,19 +220,6 @@ static __always_inline int __atomic_add_unless(atomic_t *v, int a, int u) return c; } -/** - * atomic_inc_short - increment of a short integer - * @v: pointer to type int - * - * Atomically adds 1 to @v - * Returns the new value of @u - */ -static __always_inline short int atomic_inc_short(short int *v) -{ - asm(LOCK_PREFIX "addw $1, %0" : "+m" (*v)); - return *v; -} - #ifdef CONFIG_X86_32 # include <asm/atomic64_32.h> #else |