linux-kernel - [PATCH v3 1/4] riscv/barrier: Define _

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Message-ID: <20240213142856.2416073-1-ericchancf@google.com>
Date: Tue, 13 Feb 2024 14:28:56 +0000
From: Eric Chan <ericchancf@...gle.com>
To: paul.walmsley@...ive.com, palmer@...belt.com, aou@...s.berkeley.edu
Cc: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	ericchancf@...gle.com
Subject: [PATCH v3 1/4] riscv/barrier: Define __{mb,rmb,wmb}

Introduce __{mb,rmb,wmb}, and rely on the generic definitions
for {mb,rmb,wmb}.
Although KCSAN is not yet support,
it can be made more consistent with generic instrumentation.

Signed-off-by: Eric Chan <ericchancf@...gle.com>
---
 arch/riscv/include/asm/barrier.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/include/asm/barrier.h b/arch/riscv/include/asm/barrier.h
index 110752594228..4c49a8ff2c68 100644
--- a/arch/riscv/include/asm/barrier.h
+++ b/arch/riscv/include/asm/barrier.h
@@ -20,9 +20,9 @@
 	__asm__ __volatile__ ("fence " #p "," #s : : : "memory")
 
 /* These barriers need to enforce ordering on both devices or memory. */
-#define mb()		RISCV_FENCE(iorw,iorw)
-#define rmb()		RISCV_FENCE(ir,ir)
-#define wmb()		RISCV_FENCE(ow,ow)
+#define __mb()		RISCV_FENCE(iorw,iorw)
+#define __rmb()		RISCV_FENCE(ir,ir)
+#define __wmb()		RISCV_FENCE(ow,ow)
 
 /* These barriers do not need to enforce ordering on devices, just memory. */
 #define __smp_mb()	RISCV_FENCE(rw,rw)
-- 
2.43.0.687.g38aa6559b0-goog