BITS_PER_CHUNK
u16 off = i * BITS_PER_CHUNK;
for (j = offset % BITS_PER_CHUNK; j < BITS_PER_CHUNK; j++) {
u16 off = i * BITS_PER_CHUNK;
for (j = 0; j < BITS_PER_CHUNK; j++) {
#define BIT_CHUNK(nr) ((nr) / BITS_PER_CHUNK)
#define BITS_TO_CHUNKS(sz) (((sz) + BITS_PER_CHUNK - 1) / BITS_PER_CHUNK)
#define BIT_IN_CHUNK(nr) ((nr) % BITS_PER_CHUNK)
#define LAST_CHUNK_BITS(nr) ((((nr) - 1) % BITS_PER_CHUNK) + 1)
(BITS_PER_CHUNK - LAST_CHUNK_BITS(nr)))