Re: [PATCH net-next v2 0/6] gtp: misc improvements

Resent as v2, because I forgot the net-next target. Sorry for noise, I promise I won't forget it again. This series lays the groundwork for removing the socket references from the GTP netdevice by removing duplicate code and simplifying the logic on some code paths. It slighly changes the GTP genl API by making the socket parameters optional (though one of them is still required). The removal of the socket references will break the 1:1 releation between GTP netdevice and GTP socket that prevents us to support multiple VRFs with overlaping IP addresse spaces attached to the same GTP socket (needed for multi APN support).