On Sat, Nov 24, 2018 at 3:59 AM Deepa Dinamani <deepa.ker...@gmail.com> wrote: > > SOCK_RCVTSTAMPNS is never set alone. SOCK_RCVTSTAMP > is always set along with SOCK_RCVTSTAMPNS. This leads to > checking for two flag states whenever we need to check for > SOCK_RCVTSTAMPS. > > Also SOCK_RCVTSTAMPS was the only flag that needed to be > checked in order to verify if either of the two flags are > set. But, the two features are not actually dependent on > each other. This artificial dependency creates more > confusion.
This is done so that the hot path only has to check one flag in the common case where no timestamp is requested.
