Bit Operations

find_first_zero_bit — find the first zero bit in a memory region
find_next_zero_bit — find the first zero bit in a memory region
__ffs — find first bit in word.
find_first_bit — find the first set bit in a memory region
find_next_bit — find the first set bit in a memory region
ffz — find first zero in word.
ffs — find first bit set
fls — find last bit set