On Fri, Sep 5, 2014 at 12:25 PM, David Miller [off-list ref] wrote:

I thought the retention of RCU locking was reasonable, and that your
feedback was something I disagreed with.

This is different from ignoring your feedback.

The point is we don't need to backport the patch that far, as I already
mentioned, up to  commit c15b1ccadb323ea
("ipv6: move DAD and addrconf_verify processing to workqueue"),
simply because no one reports any bug.

So we don't have to adjust the patch just for stable in this case.