From mboxrd@z Thu Jan 1 00:00:00 1970 From: mst@redhat.com (Michael S. Tsirkin) Date: Sun, 10 Jan 2016 16:17:35 +0200 Subject: [PATCH v3 08/41] arm: reuse asm-generic/barrier.h In-Reply-To: <1452426622-4471-1-git-send-email-mst@redhat.com> References: <1452426622-4471-1-git-send-email-mst@redhat.com> Message-ID: <1452426622-4471-9-git-send-email-mst@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On arm smp_store_mb, read_barrier_depends, smp_read_barrier_depends, smp_store_release, smp_load_acquire, smp_mb__before_atomic and smp_mb__after_atomic match the asm-generic variants exactly. Drop the local definitions and pull in asm-generic/barrier.h instead. This is in preparation to refactoring this code area. Signed-off-by: Michael S. Tsirkin Acked-by: Arnd Bergmann Acked-by: Russell King --- arch/arm/include/asm/barrier.h | 23 +---------------------- 1 file changed, 1 insertion(+), 22 deletions(-) diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h index 3ff5642..31152e8 100644 --- a/arch/arm/include/asm/barrier.h +++ b/arch/arm/include/asm/barrier.h @@ -70,28 +70,7 @@ extern void arm_heavy_mb(void); #define smp_wmb() dmb(ishst) #endif -#define smp_store_release(p, v) \ -do { \ - compiletime_assert_atomic_type(*p); \ - smp_mb(); \ - WRITE_ONCE(*p, v); \ -} while (0) - -#define smp_load_acquire(p) \ -({ \ - typeof(*p) ___p1 = READ_ONCE(*p); \ - compiletime_assert_atomic_type(*p); \ - smp_mb(); \ - ___p1; \ -}) - -#define read_barrier_depends() do { } while(0) -#define smp_read_barrier_depends() do { } while(0) - -#define smp_store_mb(var, value) do { WRITE_ONCE(var, value); smp_mb(); } while (0) - -#define smp_mb__before_atomic() smp_mb() -#define smp_mb__after_atomic() smp_mb() +#include #endif /* !__ASSEMBLY__ */ #endif /* __ASM_BARRIER_H */ -- MST