23 	struct bitfield *bf;  in bitfield_alloc()  local
25 	bf = os_zalloc(sizeof(*bf) + (max_bits + 7) / 8);  in bitfield_alloc()
26 	if (bf == NULL)  in bitfield_alloc()
28 	bf->bits = (u8 *) (bf + 1);  in bitfield_alloc()
29 	bf->max_bits = max_bits;  in bitfield_alloc()
30 	return bf;  in bitfield_alloc()
34 void bitfield_free(struct bitfield *bf)  in bitfield_free()  argument
36 	os_free(bf);  in bitfield_free()
40 void bitfield_set(struct bitfield *bf, size_t bit)  in bitfield_set()  argument
42 	if (bit >= bf->max_bits)  in bitfield_set()
44 	bf->bits[bit / 8] |= BIT(bit % 8);  in bitfield_set()
48 void bitfield_clear(struct bitfield *bf, size_t bit)  in bitfield_clear()  argument
50 	if (bit >= bf->max_bits)  in bitfield_clear()
52 	bf->bits[bit / 8] &= ~BIT(bit % 8);  in bitfield_clear()
56 int bitfield_is_set(struct bitfield *bf, size_t bit)  in bitfield_is_set()  argument
58 	if (bit >= bf->max_bits)  in bitfield_is_set()
60 	return !!(bf->bits[bit / 8] & BIT(bit % 8));  in bitfield_is_set()
76 int bitfield_get_first_zero(struct bitfield *bf)  in bitfield_get_first_zero()  argument
79 	for (i = 0; i < (bf->max_bits + 7) / 8; i++) {  in bitfield_get_first_zero()
80 		if (bf->bits[i] != 0xff)  in bitfield_get_first_zero()
83 	if (i == (bf->max_bits + 7) / 8)  in bitfield_get_first_zero()
85 	i = i * 8 + first_zero(bf->bits[i]);  in bitfield_get_first_zero()
86 	if (i >= bf->max_bits)  in bitfield_get_first_zero()