BITS_TO_LONGS
obj->bit_17 = kcalloc(BITS_TO_LONGS(page_count),
obj->bit_17 = kcalloc(BITS_TO_LONGS(obj->base.size >> PAGE_SHIFT),
unsigned long y420_vdb_modes[BITS_TO_LONGS(128)];
unsigned long y420_cmdb_modes[BITS_TO_LONGS(128)];
len = BITS_TO_LONGS(size) * sizeof(long);
nlongs_reg = BITS_TO_LONGS(nbits_reg);