linux-kernel - [PATCH -mm 6/6] m68knommu: convert little-endian bitops macros to static inline functions

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Date:	Thu, 27 Jan 2011 22:56:23 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	akpm@...ux-foundation.org
Cc:	Akinobu Mita <akinobu.mita@...il.com>,
	Greg Ungerer <gerg@...inux.org>,
	Greg Ungerer <gerg@...pgear.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Roman Zippel <zippel@...ux-m68k.org>,
	Andreas Schwab <schwab@...ux-m68k.org>
Subject: [PATCH -mm 6/6] m68knommu: convert little-endian bitops macros to static inline functions

(This patch is intended to be folded into the patch in -mm:
m68knommu-introduce-little-endian-bitops.patch)

A few little-endian bitops on m68knommu are written as preprocessor
macros with the cast to "unsigned long *".
This means that even non-pointers will be accepted without an error, and
that is a Very Bad Thing.

This converts the little-endian bitops macros to static inline functions
with proper prototypes.

Suggested-by: "H. Peter Anvin" <hpa@...or.com>
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
Cc: Greg Ungerer <gerg@...inux.org>
Cc: Greg Ungerer <gerg@...pgear.com>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Roman Zippel <zippel@...ux-m68k.org>
Cc: Andreas Schwab <schwab@...ux-m68k.org>
---
 arch/m68k/include/asm/bitops_no.h |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/m68k/include/asm/bitops_no.h b/arch/m68k/include/asm/bitops_no.h
index c5f5a78..7d3779f 100644
--- a/arch/m68k/include/asm/bitops_no.h
+++ b/arch/m68k/include/asm/bitops_no.h
@@ -198,11 +198,15 @@ static __inline__ int __test_bit(int nr, const volatile unsigned long * addr)
 
 #define BITOP_LE_SWIZZLE	((BITS_PER_LONG-1) & ~0x7)
 
-#define __set_bit_le(nr, addr) \
-	__set_bit((nr) ^ BITOP_LE_SWIZZLE, (unsigned long *)(addr))
+static inline void __set_bit_le(int nr, void *addr)
+{
+	__set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
+}
 
-#define __clear_bit_le(nr, addr) \
-	__clear_bit((nr) ^ BITOP_LE_SWIZZLE, (unsigned long *)(addr))
+static inline void __clear_bit_le(int nr, void *addr)
+{
+	__clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
+}
 
 static inline int __test_and_set_bit_le(int nr, volatile void *addr)
 {
-- 
1.7.3.4

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