80 	unsigned long idx;  in _find_first_bit()  local
82 	for (idx = 0; idx * BITS_PER_LONG < size; idx++) {  in _find_first_bit()
83 		if (addr[idx])  in _find_first_bit()
84 			return min(idx * BITS_PER_LONG + __ffs(addr[idx]), size);  in _find_first_bit()
98 	unsigned long idx;  in _find_first_zero_bit()  local
100 	for (idx = 0; idx * BITS_PER_LONG < size; idx++) {  in _find_first_zero_bit()
101 		if (addr[idx] != ~0UL)  in _find_first_zero_bit()
102 			return min(idx * BITS_PER_LONG + ffz(addr[idx]), size);  in _find_first_zero_bit()
115 		unsigned long idx = (size-1) / BITS_PER_LONG;  in _find_last_bit()  local
118 			val &= addr[idx];  in _find_last_bit()
120 				return idx * BITS_PER_LONG + __fls(val);  in _find_last_bit()
123 		} while (idx--);  in _find_last_bit()