netdev - Re: [patch net-next] net: sched: fix flush on non-existing chain

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Message-Id: <20180803.094517.666241811188161799.davem@davemloft.net>
Date:   Fri, 03 Aug 2018 09:45:17 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jiri@...nulli.us
Cc:     netdev@...r.kernel.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
        jakub.kicinski@...ronome.com, idosch@...lanox.com,
        mlxsw@...lanox.com
Subject: Re: [patch net-next] net: sched: fix flush on non-existing chain

From: Jiri Pirko <jiri@...nulli.us>
Date: Fri,  3 Aug 2018 11:08:47 +0200

> From: Jiri Pirko <jiri@...lanox.com>
> 
> User was able to perform filter flush on chain 0 even if it didn't have
> any filters in it. With the patch that avoided implicit chain 0
> creation, this changed. So in case user wants filter flush on chain
> which does not exist, just return success. There's no reason for non-0
> chains to behave differently than chain 0, so do the same for them.
> 
> Reported-by: Ido Schimmel <idosch@...lanox.com>
> Fixes: f71e0ca4db18 ("net: sched: Avoid implicit chain 0 creation")
> Signed-off-by: Jiri Pirko <jiri@...lanox.com>

Applied.