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| author | Mark Rutland <mark.rutland@arm.com> | 2018-06-21 13:13:19 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-06-21 14:25:24 +0200 |
| commit | 9837559d8eb01ce834e56fc9a567c1d94ebd3698 (patch) | |
| tree | bb475ca639022bddfc8bbdc9c1b963ab0ff30def /arch/h8300 | |
| parent | 18cc1814d4e7560412c9c8c6d28f9d6782c8b402 (diff) | |
| download | linux-0-day-9837559d8eb01ce834e56fc9a567c1d94ebd3698.tar.gz linux-0-day-9837559d8eb01ce834e56fc9a567c1d94ebd3698.tar.xz | |
atomics/treewide: Make unconditional inc/dec ops optional
Many of the inc/dec ops are mandatory, but for most architectures inc/dec are
simply trivial wrappers around their corresponding add/sub ops.
Let's make all the inc/dec ops optional, so that we can get rid of these
boilerplate wrappers.
The instrumented atomics are updated accordingly.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/20180621121321.4761-17-mark.rutland@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/h8300')
| -rw-r--r-- | arch/h8300/include/asm/atomic.h | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h index 8977b5157c8fc..c6b6a06231b2e 100644 --- a/arch/h8300/include/asm/atomic.h +++ b/arch/h8300/include/asm/atomic.h @@ -69,13 +69,6 @@ ATOMIC_OPS(sub, -=) #undef ATOMIC_OP_RETURN #undef ATOMIC_OP -#define atomic_inc_return(v) atomic_add_return(1, v) -#define atomic_dec_return(v) atomic_sub_return(1, v) - -#define atomic_inc(v) (void)atomic_inc_return(v) - -#define atomic_dec(v) (void)atomic_dec_return(v) - static inline int atomic_cmpxchg(atomic_t *v, int old, int new) { int ret; |