David Miller wrote:

Actually, the tree doesn't even build after applying this
patch.

How did you test this?

net/sched/cls_cgroup.c: In function ‘write_classid’:
net/sched/cls_cgroup.c:68: error: implicit declaration of function ‘net_cls_state’
net/sched/cls_cgroup.c:68: error: invalid type argument of ‘->’

I made the obvious fixup to this change, but...

Come on, build test your changes. :-(

Ouch, sorry.. I did a fixup when I was making those patches,
but forgot to update the patch..