diff options
Diffstat (limited to 'arch/arm/include/asm/spinlock.h')
| -rw-r--r-- | arch/arm/include/asm/spinlock.h | 18 |
1 files changed, 2 insertions, 16 deletions
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h index c030143c18c6..099c78fcf62d 100644 --- a/arch/arm/include/asm/spinlock.h +++ b/arch/arm/include/asm/spinlock.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SPINLOCK_H #define __ASM_SPINLOCK_H @@ -52,8 +53,6 @@ static inline void dsb_sev(void) * memory. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - static inline void arch_spin_lock(arch_spinlock_t *lock) { unsigned long tmp; @@ -73,7 +72,7 @@ static inline void arch_spin_lock(arch_spinlock_t *lock) while (lockval.tickets.next != lockval.tickets.owner) { wfe(); - lockval.tickets.owner = ACCESS_ONCE(lock->tickets.owner); + lockval.tickets.owner = READ_ONCE(lock->tickets.owner); } smp_mb(); @@ -193,9 +192,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw) dsb_sev(); } -/* write_can_lock - would write_trylock() succeed? */ -#define arch_write_can_lock(x) (ACCESS_ONCE((x)->lock) == 0) - /* * Read locks are a bit more hairy: * - Exclusively load the lock value. @@ -273,14 +269,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) } } -/* read_can_lock - would read_trylock() succeed? */ -#define arch_read_can_lock(x) (ACCESS_ONCE((x)->lock) < 0x80000000) - -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - -#define arch_spin_relax(lock) cpu_relax() -#define arch_read_relax(lock) cpu_relax() -#define arch_write_relax(lock) cpu_relax() - #endif /* __ASM_SPINLOCK_H */ |