linux-kernel - [PATCH v4 4/4] riscv/barrier: Resolve checkpatch.pl error

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Date: Tue, 13 Feb 2024 20:12:21 +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 v4 4/4] riscv/barrier: Resolve checkpatch.pl error

The past form of RISCV_FENCE would cause checkpatch.pl to issue
error messages, the example is as follows:
ERROR: space required after that ',' (ctx:VxV)
+#define __atomic_acquire_fence()       RISCV_FENCE(r,rw)
                                                     ^
fix the remaining of RISCV_FENCE.

Signed-off-by: Eric Chan <ericchancf@...gle.com>
---
 arch/riscv/include/asm/barrier.h | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/riscv/include/asm/barrier.h b/arch/riscv/include/asm/barrier.h
index 4f4743d7440d..880b56d8480d 100644
--- a/arch/riscv/include/asm/barrier.h
+++ b/arch/riscv/include/asm/barrier.h
@@ -19,19 +19,19 @@


 /* 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)
-#define __smp_rmb()	RISCV_FENCE(r,r)
-#define __smp_wmb()	RISCV_FENCE(w,w)
+#define __smp_mb()	RISCV_FENCE(rw, rw)
+#define __smp_rmb()	RISCV_FENCE(r, r)
+#define __smp_wmb()	RISCV_FENCE(w, w)

 #define __smp_store_release(p, v)					\
 do {									\
 	compiletime_assert_atomic_type(*p);				\
-	RISCV_FENCE(rw,w);						\
+	RISCV_FENCE(rw, w);						\
 	WRITE_ONCE(*p, v);						\
 } while (0)

@@ -39,7 +39,7 @@ do {									\
 ({									\
 	typeof(*p) ___p1 = READ_ONCE(*p);				\
 	compiletime_assert_atomic_type(*p);				\
-	RISCV_FENCE(r,rw);						\
+	RISCV_FENCE(r, rw);						\
 	___p1;								\
 })

@@ -68,7 +68,7 @@ do {									\
  * instances the scheduler pairs this with an mb(), so nothing is necessary on
  * the new hart.
  */
-#define smp_mb__after_spinlock()	RISCV_FENCE(iorw,iorw)
+#define smp_mb__after_spinlock()	RISCV_FENCE(iorw, iorw)

 #include <asm-generic/barrier.h>

--
2.43.0.687.g38aa6559b0-goog