From: Florian Westphal <f...@strlen.de> Date: Thu, 20 Apr 2017 18:08:15 +0200
> commit 4fbae7d83c98c30efc ("ipvlan: Introduce l3s mode") added > registration of netfilter hooks via nf_register_hooks(). > > This API provides the illusion of 'global' netfilter hooks by placing the > hooks in all current and future network namespaces. > > In case of ipvlan the hook appears to be only needed in the namespace > that contains the ipvlan master device (i.e., usually init_net), so > placing them in all namespaces is not needed. > > This switches ipvlan driver to pernet operations, and then only registers > hooks in namespaces where a ipvlan master device is set to l3s mode. > > Extra care has to be taken when the master device is moved to another > namespace, as we might have to 'move' the netfilter hooks too. > > This is done by storing the namespace the ipvlan port was created in. > On REGISTER event, do (un)register operations in the old/new namespaces. > > This will also allow removal of the nf_register_hooks() in a future patch. > > Cc: Mahesh Bandewar <mahe...@google.com> > Signed-off-by: Florian Westphal <f...@strlen.de> Applied, thanks Florian.