netdev - Re: [patch net-next v2 3/3] net: devlink: add WARN_ON to check return value of unregister_netdevice_notifier

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Message-ID: <CANn89iJgTLe0EJ61xYji6W-VzQAGtoXpZJAxgKe-nE9ESw=p7w@mail.gmail.com>
Date:   Wed, 9 Nov 2022 08:26:10 -0800
From:   Eric Dumazet <edumazet@...gle.com>
To:     Ido Schimmel <idosch@...sch.org>
Cc:     Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org,
        davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        bigeasy@...utronix.de, imagedong@...cent.com, kuniyu@...zon.com,
        petrm@...dia.com
Subject: Re: [patch net-next v2 3/3] net: devlink: add WARN_ON to check return
 value of unregister_netdevice_notifier_net() call

On Wed, Nov 9, 2022 at 3:49 AM Ido Schimmel <idosch@...sch.org> wrote:
>
> On Tue, Nov 08, 2022 at 02:22:08PM +0100, Jiri Pirko wrote:
> > From: Jiri Pirko <jiri@...dia.com>
> >
> > As the return value is not 0 only in case there is no such notifier
> > block registered, add a WARN_ON() to yell about it.
> >
> > Suggested-by: Ido Schimmel <idosch@...sch.org>
> > Signed-off-by: Jiri Pirko <jiri@...dia.com>
>
> Reviewed-by: Ido Schimmel <idosch@...dia.com>

Please consider WARN_ON_ONCE(), or DEBUG_NET_WARN_ON_ONCE()