u64_div           128 sound/core/seq/seq_queue.h #define u64_div(x,y,q) do {u32 __tmp; udiv_qrnnd(q, __tmp, (x)>>32, x, y);} while (0)
u64_div           133 sound/core/seq/seq_queue.h #define u64_div(x,y,q)	((q) = (u32)((u64)(x) / (u64)(y)))