mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-10 19:39:54 +01:00
Akinobu Mita
19de85ef57
The style that we normally use in asm-generic is to test the macro itself for existence, so in asm-generic, do: #ifndef find_next_zero_bit_le extern unsigned long find_next_zero_bit_le(const void *addr, unsigned long size, unsigned long offset); #endif and in the architectures, write static inline unsigned long find_next_zero_bit_le(const void *addr, unsigned long size, unsigned long offset) #define find_next_zero_bit_le find_next_zero_bit_le This adds the #ifndef for each of the find bitops in the generic header and source files. Suggested-by: Arnd Bergmann <[email protected]> Signed-off-by: Akinobu Mita <[email protected]> Acked-by: Russell King <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Greg Ungerer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
#ifndef _ASM_GENERIC_BITOPS_LE_H_
|
|
#define _ASM_GENERIC_BITOPS_LE_H_
|
|
|
|
#include <asm/types.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
#if defined(__LITTLE_ENDIAN)
|
|
|
|
#define BITOP_LE_SWIZZLE 0
|
|
|
|
static inline unsigned long find_next_zero_bit_le(const void *addr,
|
|
unsigned long size, unsigned long offset)
|
|
{
|
|
return find_next_zero_bit(addr, size, offset);
|
|
}
|
|
|
|
static inline unsigned long find_next_bit_le(const void *addr,
|
|
unsigned long size, unsigned long offset)
|
|
{
|
|
return find_next_bit(addr, size, offset);
|
|
}
|
|
|
|
static inline unsigned long find_first_zero_bit_le(const void *addr,
|
|
unsigned long size)
|
|
{
|
|
return find_first_zero_bit(addr, size);
|
|
}
|
|
|
|
#elif defined(__BIG_ENDIAN)
|
|
|
|
#define BITOP_LE_SWIZZLE ((BITS_PER_LONG-1) & ~0x7)
|
|
|
|
#ifndef find_next_zero_bit_le
|
|
extern unsigned long find_next_zero_bit_le(const void *addr,
|
|
unsigned long size, unsigned long offset);
|
|
#endif
|
|
|
|
#ifndef find_next_bit_le
|
|
extern unsigned long find_next_bit_le(const void *addr,
|
|
unsigned long size, unsigned long offset);
|
|
#endif
|
|
|
|
#ifndef find_first_zero_bit_le
|
|
#define find_first_zero_bit_le(addr, size) \
|
|
find_next_zero_bit_le((addr), (size), 0)
|
|
#endif
|
|
|
|
#else
|
|
#error "Please fix <asm/byteorder.h>"
|
|
#endif
|
|
|
|
static inline int test_bit_le(int nr, const void *addr)
|
|
{
|
|
return test_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);
|
|
}
|
|
|
|
#endif /* _ASM_GENERIC_BITOPS_LE_H_ */
|