From: Alexander Sverdlin <alexander.sverd...@nokia.com> Drop smp_wmb in arch_mcs_spin_lock_contended() after adding in into ARCH-independent code.
Signed-off-by: Alexander Sverdlin <alexander.sverd...@nokia.com> --- arch/arm/include/asm/mcs_spinlock.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm/include/asm/mcs_spinlock.h b/arch/arm/include/asm/mcs_spinlock.h index 529d2cf..d8fa921 100644 --- a/arch/arm/include/asm/mcs_spinlock.h +++ b/arch/arm/include/asm/mcs_spinlock.h @@ -8,8 +8,6 @@ /* MCS spin-locking. */ #define arch_mcs_spin_lock_contended(lock) \ do { \ - /* Ensure prior stores are observed before we enter wfe. */ \ - smp_mb(); \ while (!(smp_load_acquire(lock))) \ wfe(); \ } while (0) \ -- 2.10.2