ktime_get_tai_fast_ns
extern u64 ktime_get_tai_fast_ns(void);
return ktime_get_tai_fast_ns();
EXPORT_SYMBOL_GPL(ktime_get_tai_fast_ns);
{ ktime_get_tai_fast_ns, "tai", 1 },
*compl->tx_timestamp = ktime_get_tai_fast_ns();