#ifndef _ASM_GENERIC_BITOPS_FIND_H_
#define _ASM_GENERIC_BITOPS_FIND_H_
+#ifndef find_next_bit
/**
* find_next_bit - find the next set bit in a memory region
* @addr: The address to base the search on
*/
extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
size, unsigned long offset);
+#endif
+#ifndef find_next_zero_bit
/**
* find_next_zero_bit - find the next cleared bit in a memory region
* @addr: The address to base the search on
*/
extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
long size, unsigned long offset);
+#endif
#ifdef CONFIG_GENERIC_FIND_FIRST_BIT
#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>"
#define BITOP_WORD(nr) ((nr) / BITS_PER_LONG)
#ifdef CONFIG_GENERIC_FIND_NEXT_BIT
+#ifndef find_next_bit
/*
* Find the next set bit in a memory region.
*/
return result + __ffs(tmp);
}
EXPORT_SYMBOL(find_next_bit);
+#endif
+#ifndef find_next_zero_bit
/*
* This implementation of find_{first,next}_zero_bit was stolen from
* Linus' asm-alpha/bitops.h.
return result + ffz(tmp);
}
EXPORT_SYMBOL(find_next_zero_bit);
+#endif
#endif /* CONFIG_GENERIC_FIND_NEXT_BIT */
#ifdef CONFIG_GENERIC_FIND_FIRST_BIT
+#ifndef find_first_bit
/*
* Find the first set bit in a memory region.
*/
return result + __ffs(tmp);
}
EXPORT_SYMBOL(find_first_bit);
+#endif
+#ifndef find_first_zero_bit
/*
* Find the first cleared bit in a memory region.
*/
return result + ffz(tmp);
}
EXPORT_SYMBOL(find_first_zero_bit);
+#endif
#endif /* CONFIG_GENERIC_FIND_FIRST_BIT */
#ifdef __BIG_ENDIAN
#endif
}
+#ifndef find_next_zero_bit_le
unsigned long find_next_zero_bit_le(const void *addr, unsigned
long size, unsigned long offset)
{
return result + ffz(ext2_swab(tmp));
}
EXPORT_SYMBOL(find_next_zero_bit_le);
+#endif
+#ifndef find_next_bit_le
unsigned long find_next_bit_le(const void *addr, unsigned
long size, unsigned long offset)
{
return result + __ffs(ext2_swab(tmp));
}
EXPORT_SYMBOL(find_next_bit_le);
+#endif
#endif /* CONFIG_GENERIC_FIND_BIT_LE */
#endif /* __BIG_ENDIAN */