diff options
| author | Mark Brown <broonie@kernel.org> | 2015-06-09 18:35:46 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-06-09 18:35:46 +0100 |
| commit | 6724af486903df57338c14424e02599e371cf563 (patch) | |
| tree | 0e42ae32bbfe7e93ba9db11a1124aeb4378cbd71 /include/linux/bitmap.h | |
| parent | d2233325e5b7891914901867ca5355347d59df14 (diff) | |
| parent | 9deef024a12ebae4965c89837f662905ac88944b (diff) | |
Merge branch 'fix/fsl-dspi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-fsl-dspi
Diffstat (limited to 'include/linux/bitmap.h')
| -rw-r--r-- | include/linux/bitmap.h | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index dbfbf4990005..ea17cca9e685 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -172,12 +172,8 @@ extern unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int extern int bitmap_print_to_pagebuf(bool list, char *buf, const unsigned long *maskp, int nmaskbits); -#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG)) -#define BITMAP_LAST_WORD_MASK(nbits) \ -( \ - ((nbits) % BITS_PER_LONG) ? \ - (1UL<<((nbits) % BITS_PER_LONG))-1 : ~0UL \ -) +#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) +#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) #define small_const_nbits(nbits) \ (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG) @@ -287,16 +283,16 @@ static inline int bitmap_empty(const unsigned long *src, unsigned nbits) { if (small_const_nbits(nbits)) return ! (*src & BITMAP_LAST_WORD_MASK(nbits)); - else - return __bitmap_empty(src, nbits); + + return find_first_bit(src, nbits) == nbits; } static inline int bitmap_full(const unsigned long *src, unsigned int nbits) { if (small_const_nbits(nbits)) return ! (~(*src) & BITMAP_LAST_WORD_MASK(nbits)); - else - return __bitmap_full(src, nbits); + + return find_first_zero_bit(src, nbits) == nbits; } static inline int bitmap_weight(const unsigned long *src, unsigned int nbits) |
