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powerpc: Use asm-generic/bitops/le.h

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The only difference between powerpc and asm-generic le-bitops is
test_bit_le().  Usually all bitops require a long aligned bitmap.
But powerpc test_bit_le() can take an unaligned address.

There is no special callsite of test_bit_le() that needs unaligned
access in powerpc as far as I can see.  So convert to use
asm-generic/bitops/le.h for powerpc.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Akinobu Mita 2012-11-04 02:03:45 +00:00 committed by Benjamin Herrenschmidt
parent 2237f4f40a
commit 79597be99a
1 changed files with 1 additions and 54 deletions
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55
arch/powerpc/include/asm/bitops.h
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@ -278,61 +278,8 @@ unsigned long __arch_hweight64(__u64 w);
#include <asm-generic/bitops/find.h>
/* Little-endian versions */
#include <asm-generic/bitops/le.h>
static __inline__ int test_bit_le(unsigned long nr,
__const__ void *addr)
{
__const__ unsigned char *tmp = (__const__ unsigned char *) addr;
return (tmp[nr >> 3] >> (nr & 7)) & 1;
}
static inline void set_bit_le(int nr, void *addr)
{
set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
}
static inline void clear_bit_le(int nr, void *addr)
{
clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
}
static inline void __set_bit_le(int nr, void *addr)
{
__set_bit(nr ^ BITOP_LE_SWIZZLE, 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, void *addr)
{
return test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
}
static inline int test_and_clear_bit_le(int nr, void *addr)
{
return test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
}
static inline int __test_and_set_bit_le(int nr, void *addr)
{
return __test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
}
static inline int __test_and_clear_bit_le(int nr, void *addr)
{
return __test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
}
#define find_first_zero_bit_le(addr, size) \
find_next_zero_bit_le((addr), (size), 0)
unsigned long find_next_zero_bit_le(const void *addr,
unsigned long size, unsigned long offset);
unsigned long find_next_bit_le(const void *addr,
unsigned long size, unsigned long offset);
/* Bitmap functions for the ext2 filesystem */
#include <asm-generic/bitops/ext2-atomic-setbit.h>