netdev - Re: [PATCH net-next v4 1/5] net: hdlc_fr: Simpify fr_rx by using "goto rx

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Message-ID: <CAJht_EP0F3FuiUJSpYYjEXy7h2qA=18P7JiTWV246y6FyzMAag@mail.gmail.com>
Date:   Fri, 30 Oct 2020 14:27:16 -0700
From:   Xie He <xie.he.0141@...il.com>
To:     Willem de Bruijn <willemdebruijn.kernel@...il.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Network Development <netdev@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Krzysztof Halasa <khc@...waw.pl>
Subject: Re: [PATCH net-next v4 1/5] net: hdlc_fr: Simpify fr_rx by using
 "goto rx_drop" to drop frames

On Fri, Oct 30, 2020 at 2:12 PM Willem de Bruijn
<willemdebruijn.kernel@...il.com> wrote:
>
> Jakub recently made stats behavior less ambiguous, in commit
> 0db0c34cfbc9 ("net: tighten the definition of interface statistics").
>
> That said, it's not entirely clear whether rx_dropped would be allowed
> to include rx_errors.
>
> My hunch is that it shouldn't. A quick scan of devices did quickly
> show at least one example where it does: macvlan. But I expect that to
> be an outlier.

OK. Thanks for the information.

> Please do always consider backward compatibility. In this case, I
> don't think that the behavioral change is needed for the core of the
> patch (changing control flow).

OK. I'll drop the change about stats.rx_dropped. Thanks.