From: Vlad Buslov <vla...@mellanox.com>
Date: Mon, 25 Feb 2019 17:38:31 +0200
> Using tcf_walker->stop flag to determine when tcf_walker->fn() was called
> at least once is unreliable. Some classifiers set 'stop' flag on error
> before calling walker callback, other classifiers used to call it with NULL
> filter pointer when empty. In order to prevent further regressions, extend
> tcf_walker structure with dedicated 'nonempty' flag. Set this flag in
> tcf_walker->fn() implementation that is used to check if classifier has
> filters configured.
>
> Fixes: 8b64678e0af8 ("net: sched: refactor tp insert/delete for concurrent
> execution")
> Signed-off-by: Vlad Buslov <vla...@mellanox.com>
> Suggested-by: Cong Wang <xiyou.wangc...@gmail.com>
Applied, thanks.
