linux-kernel - [PATCH 2/2] h8300/bitops: Remove smp_mb__{before,after}_clear

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Date:   Tue, 25 Sep 2018 14:12:25 +0200
From:   Andrea Parri <andrea.parri@...rulasolutions.com>
To:     linux-kernel@...r.kernel.org
Cc:     Andrea Parri <andrea.parri@...rulasolutions.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        uclinux-h8-devel@...ts.sourceforge.jp
Subject: [PATCH 2/2] h8300/bitops: Remove smp_mb__{before,after}_clear_bit()

The barriers are unused; remove their definition.

Signed-off-by: Andrea Parri <andrea.parri@...rulasolutions.com>
Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp>
Cc: <uclinux-h8-devel@...ts.sourceforge.jp>
---
 arch/h8300/include/asm/bitops.h | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h
index 647a83bd40b70..7aa16c732aa9f 100644
--- a/arch/h8300/include/asm/bitops.h
+++ b/arch/h8300/include/asm/bitops.h
@@ -51,12 +51,6 @@ static inline void FNAME(int nr, volatile unsigned long *addr)	\
 	}							\
 }
 
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit()	barrier()
-#define smp_mb__after_clear_bit()	barrier()
-
 H8300_GEN_BITOP(set_bit,    "bset")
 H8300_GEN_BITOP(clear_bit,  "bclr")
 H8300_GEN_BITOP(change_bit, "bnot")
-- 
2.17.1