BITMAP_FIRST_WORD_MASK  208 include/linux/bitmap.h #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))
BITMAP_FIRST_WORD_MASK   20 tools/include/linux/bitmap.h #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))