netdev - Re: [PATCH wpan-next v2 04/14] net: ieee802154: atusb: Call _xmit

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Message-ID: <CAB_54W6Rs1tkzkOvgQuMKNtFrWY+OZjhUZ-t2qh9QdmZOHAsvw@mail.gmail.com>
Date:   Wed, 23 Feb 2022 21:00:23 -0500
From:   Alexander Aring <alex.aring@...il.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     Stefan Schmidt <stefan@...enfreihafen.org>,
        linux-wpan - ML <linux-wpan@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "open list:NETWORKING [GENERAL]" <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 wpan-next v2 04/14] net: ieee802154: atusb: Call
 _xmit_error() when a transmission fails

Hi,

On Sun, Feb 20, 2022 at 6:35 PM Alexander Aring <alex.aring@...il.com> wrote:
>
> Hi,
>
> On Mon, Feb 7, 2022 at 9:48 AM Miquel Raynal <miquel.raynal@...tlin.com> wrote:
> >
> > ieee802154_xmit_error() is the right helper to call when a transmission
> > has failed. Let's use it instead of open-coding it.
> >
> > Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
> > ---
> >  drivers/net/ieee802154/atusb.c | 4 +---
> >  1 file changed, 1 insertion(+), 3 deletions(-)
> >
> > diff --git a/drivers/net/ieee802154/atusb.c b/drivers/net/ieee802154/atusb.c
> > index f27a5f535808..0e6f180b4e79 100644
> > --- a/drivers/net/ieee802154/atusb.c
> > +++ b/drivers/net/ieee802154/atusb.c
> > @@ -271,9 +271,7 @@ static void atusb_tx_done(struct atusb *atusb, u8 seq)
> >                  * unlikely case now that seq == expect is then true, but can
> >                  * happen and fail with a tx_skb = NULL;
> >                  */
> > -               ieee802154_wake_queue(atusb->hw);
> > -               if (atusb->tx_skb)
> > -                       dev_kfree_skb_irq(atusb->tx_skb);
> > +               ieee802154_xmit_error(atusb->hw, atusb->tx_skb, false);
> >
> Are you sure you can easily convert this? You should introduce a
> "ieee802154_xmit_error_irq()"?

Should be fine as you are using dev_kfree_skb_any().

- Alex