netdev - Re: [PATCH] net: mac802154: Fix a Tx warning check

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Message-ID: <CAK-6q+h3u-ReBJux4SUJ8ww4NkafrnaAqwGcXnJvm5xnXUge9Q@mail.gmail.com>
Date:   Sun, 19 Jun 2022 20:33:54 -0400
From:   Alexander Aring <aahringo@...hat.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     Alexander Aring <alex.aring@...il.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        linux-wpan - ML <linux-wpan@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Network Development <netdev@...r.kernel.org>,
        David Girault <david.girault@...vo.com>,
        Romuald Despres <romuald.despres@...vo.com>,
        Frederic Blain <frederic.blain@...vo.com>,
        Nicolas Schodet <nico@...fr.eu.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH] net: mac802154: Fix a Tx warning check

Hi,

On Fri, Jun 17, 2022 at 3:30 PM Miquel Raynal <miquel.raynal@...tlin.com> wrote:
>
> The purpose of the netif_is_down() helper was to ensure that the network
> interface used was still up when performing the transmission. What it
> actually did was to check if _all_ interfaces were up. This was not
> noticed at that time because I did not use interfaces at all before
> discussing with Alexander Aring about how to handle coordinators
> properly.
>
> Drop the helper and call netif_running() on the right sub interface
> object directly.
>
> Fixes: 4f790184139b ("net: mac802154: Add a warning in the slow path")

Acked-by: Alexander Aring <aahringo@...hat.com>

- Alex