Re: [PATCH wpan-next v2 04/14] net: ieee802154: atusb: Call _xmit_error() when a transmission fails

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Hi Alexander,

alex.aring@xxxxxxxxx wrote on Wed, 23 Feb 2022 21:00:23 -0500:

> Hi,
> 
> On Sun, Feb 20, 2022 at 6:35 PM Alexander Aring <alex.aring@xxxxxxxxx> wrote:
> >
> > Hi,
> >
> > On Mon, Feb 7, 2022 at 9:48 AM Miquel Raynal <miquel.raynal@xxxxxxxxxxx> 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@xxxxxxxxxxx>
> > > ---
> > >  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().

Haha, you answer my questions before I even take the time to write them
down :-)

Yes I agree, because of dev_kfree_skb_any(), my understanding is that
we do not need an _irq specific error handler.

Thanks,
Miquèl




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