diff options
Diffstat (limited to 'arch/x86/um/asm/barrier.h')
| -rw-r--r-- | arch/x86/um/asm/barrier.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h index cc04e67bfd0..d6511d954e2 100644 --- a/arch/x86/um/asm/barrier.h +++ b/arch/x86/um/asm/barrier.h @@ -29,8 +29,6 @@ #endif /* CONFIG_X86_32 */ -#define read_barrier_depends() do { } while (0) - #ifdef CONFIG_SMP #define smp_mb() mb() @@ -42,7 +40,6 @@ #define smp_wmb() barrier() -#define smp_read_barrier_depends() read_barrier_depends() #define set_mb(var, value) do { (void)xchg(&var, value); } while (0) #else /* CONFIG_SMP */ @@ -50,11 +47,13 @@ #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() -#define smp_read_barrier_depends() do { } while (0) #define set_mb(var, value) do { var = value; barrier(); } while (0) #endif /* CONFIG_SMP */ +#define read_barrier_depends() do { } while (0) +#define smp_read_barrier_depends() do { } while (0) + /* * Stop RDTSC speculation. This is needed when you need to use RDTSC * (or get_cycles or vread that possibly accesses the TSC) in a defined |