From: Liran Alon <liran.a...@oracle.com> Date: Tue, 20 Mar 2018 17:34:38 +0200
> I personally don't understand why we should maintain > backwards-comparability to this behaviour. The reason is because not breaking things is a cornerstone of Linux kernel development. > This feature is not documented to user-mode and I don't see why it > is legit for the user to rely on it. Whether it is documented or not is irrelevant. A lot of our interfaces and behaviors are not documented or poorly documented at best. > In addition, even if we do want to maintain backwards-comparability to > this behaviour, I think it is enough to have an opt-in flag in > /proc/sys/net/core/ that when set to 1 will activate the fix in > dev_forward_skb() provided by this patch. That would also be a very > simple change to the patch provided here. Making it opt-in makes it more palatable, that's for sure.
