diff options
| author | Chen Gang <gang.chen@asianux.com> | 2013-10-26 15:07:41 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-11-09 00:00:13 +0000 |
| commit | aed3a4ed7222ae37860ae33cbad3ea7a6b2eaf8e (patch) | |
| tree | 08b89fd6f357407bf61b106b08e68d637bf59fea /arch/arm/include/asm/atomic.h | |
| parent | 4dcc1cf7316a26e112f5c9fcca531ff98ef44700 (diff) | |
ARM: 7868/1: arm/arm64: remove atomic_clear_mask() in "include/asm/atomic.h"
In current kernel wide source code, except other architectures, only
s390 scsi drivers use atomic_clear_mask(), and arm/arm64 need not
support s390 drivers.
So remove atomic_clear_mask() from "arm[64]/include/asm/atomic.h".
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/atomic.h')
| -rw-r--r-- | arch/arm/include/asm/atomic.h | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h index 9ee7e01066f9..f8a4336ed8fc 100644 --- a/arch/arm/include/asm/atomic.h +++ b/arch/arm/include/asm/atomic.h @@ -135,21 +135,6 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new) return oldval; } -static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) -{ - unsigned long tmp, tmp2; - - __asm__ __volatile__("@ atomic_clear_mask\n" -"1: ldrex %0, [%3]\n" -" bic %0, %0, %4\n" -" strex %1, %0, [%3]\n" -" teq %1, #0\n" -" bne 1b" - : "=&r" (tmp), "=&r" (tmp2), "+Qo" (*addr) - : "r" (addr), "Ir" (mask) - : "cc"); -} - #else /* ARM_ARCH_6 */ #ifdef CONFIG_SMP @@ -198,15 +183,6 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) return ret; } -static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) -{ - unsigned long flags; - - raw_local_irq_save(flags); - *addr &= ~mask; - raw_local_irq_restore(flags); -} - #endif /* __LINUX_ARM_ARCH__ */ #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) |