Re: [Y2038] [PATCH 3/8] socket: Disentangle SOCK_RCVTSTAMPNS from SOCK_RCVTSTAMP

On Sat, Nov 24, 2018 at 3:59 AM Deepa Dinamani deepa.kernel@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.