diff options
Diffstat (limited to 'tools/include/linux/bitmap.h')
| -rw-r--r-- | tools/include/linux/bitmap.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h index 845eda759f67..5cb4f3942fd3 100644 --- a/tools/include/linux/bitmap.h +++ b/tools/include/linux/bitmap.h @@ -55,6 +55,17 @@ static inline void bitmap_fill(unsigned long *dst, unsigned int nbits) dst[nlongs - 1] = BITMAP_LAST_WORD_MASK(nbits); } +static __always_inline +void bitmap_copy(unsigned long *dst, const unsigned long *src, unsigned int nbits) +{ + unsigned int len = bitmap_size(nbits); + + if (small_const_nbits(nbits)) + *dst = *src; + else + memcpy(dst, src, len); +} + static inline bool bitmap_empty(const unsigned long *src, unsigned int nbits) { if (small_const_nbits(nbits)) |