SOF_TIMESTAMPING_LAST
SOF_TIMESTAMPING_MASK = (SOF_TIMESTAMPING_LAST - 1) |
SOF_TIMESTAMPING_LAST
BUILD_BUG_ON(SOF_TIMESTAMPING_LAST == (1 << 31));
#define __SOF_TIMESTAMPING_CNT (const_ilog2(SOF_TIMESTAMPING_LAST) + 1)