diff options
Diffstat (limited to 'tools/lib/find_bit.c')
-rw-r--r-- | tools/lib/find_bit.c | 52 |
1 files changed, 21 insertions, 31 deletions
diff --git a/tools/lib/find_bit.c b/tools/lib/find_bit.c index ac37022e9486..589fd2f26f94 100644 --- a/tools/lib/find_bit.c +++ b/tools/lib/find_bit.c @@ -28,11 +28,12 @@ * searching it for one bits. * - The optional "addr2", which is anded with "addr1" if present. */ -static inline unsigned long _find_next_bit(const unsigned long *addr1, +unsigned long _find_next_bit(const unsigned long *addr1, const unsigned long *addr2, unsigned long nbits, - unsigned long start, unsigned long invert) + unsigned long start, unsigned long invert, unsigned long le) { - unsigned long tmp; + unsigned long tmp, mask; + (void) le; if (unlikely(start >= nbits)) return nbits; @@ -43,7 +44,19 @@ static inline unsigned long _find_next_bit(const unsigned long *addr1, tmp ^= invert; /* Handle 1st word. */ - tmp &= BITMAP_FIRST_WORD_MASK(start); + mask = BITMAP_FIRST_WORD_MASK(start); + + /* + * Due to the lack of swab() in tools, and the fact that it doesn't + * need little-endian support, just comment it out + */ +#if (0) + if (le) + mask = swab(mask); +#endif + + tmp &= mask; + start = round_down(start, BITS_PER_LONG); while (!tmp) { @@ -57,18 +70,12 @@ static inline unsigned long _find_next_bit(const unsigned long *addr1, tmp ^= invert; } - return min(start + __ffs(tmp), nbits); -} +#if (0) + if (le) + tmp = swab(tmp); #endif -#ifndef find_next_bit -/* - * Find the next set bit in a memory region. - */ -unsigned long find_next_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, 0UL); + return min(start + __ffs(tmp), nbits); } #endif @@ -105,20 +112,3 @@ unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) return size; } #endif - -#ifndef find_next_zero_bit -unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, ~0UL); -} -#endif - -#ifndef find_next_and_bit -unsigned long find_next_and_bit(const unsigned long *addr1, - const unsigned long *addr2, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr1, addr2, size, offset, 0UL); -} -#endif |