[PATCH 2/2] ARM: mcs_spinlock: Drop smp_wmb in arch_mcs_spin_lock_contended()

[Alexander A Sverdlin]

From: Alexander Sverdlin <alexander.sverdlin at nokia.com>

Drop smp_wmb in arch_mcs_spin_lock_contended() after adding in into
ARCH-independent code.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin at 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