James, > >> I do not know when it is merge-window. About the apply version, it does not have limited. > > 'git fetch' Linus' tree and look at the tags. 'v4.16' lost its '-rc' suffixes, > and there isn't a 'v4.17-rc1' yet, so we are still in the merge window. > > Linus sends a message to LKML. eg: > https://lkml.org/lkml/2018/4/1/175 > > net-next closes shortly before the merge window, and re-opens afterwards. There > is a handy web page: > http://vger.kernel.org/~davem/net-next.html Thanks for this information, got it.