diff options
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/system.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h index c5ac7af87347..8b1d2dfbbb3e 100644 --- a/include/asm-arm/system.h +++ b/include/asm-arm/system.h @@ -52,6 +52,7 @@ extern asmlinkage void __backtrace(void); #define mb() __asm__ __volatile__ ("" : : : "memory") #define rmb() mb() #define wmb() mb() +#define read_barrier_depends() do { } while(0) #define set_mb(var, value) do { var = value; mb(); } while (0) #define set_wmb(var, value) do { var = value; wmb(); } while (0) #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t"); @@ -78,12 +79,14 @@ extern struct task_struct *__switch_to(struct thread_info *, struct thread_info #define smp_mb() mb() #define smp_rmb() rmb() #define smp_wmb() wmb() +#define smp_read_barrier_depends() read_barrier_depends() #else #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() +#define smp_read_barrier_depends() do { } while(0) #define clf() __clf() #define stf() __stf() |