linux-kernel - Re: [RESEND PATCH v4 net 1/1] net: fec: correct the counting of XDP sent frames

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Date:   Mon, 8 May 2023 18:46:08 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Shenwei Wang <shenwei.wang@....com>
Cc:     Wei Fang <wei.fang@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Clark Wang <xiaoning.wang@....com>,
        NXP Linux Team <linux-imx@....com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Alexander Lobakin <alexandr.lobakin@...el.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        imx@...ts.linux.dev, Gagandeep Singh <g.singh@....com>
Subject: Re: [RESEND PATCH v4 net 1/1] net: fec: correct the counting of XDP
 sent frames

On Mon,  8 May 2023 09:38:31 -0500 Shenwei Wang wrote:
> In the current xdp_xmit implementation, if any single frame fails to
> transmit due to insufficient buffer descriptors, the function nevertheless
> reports success in sending all frames. This results in erroneously
> indicating that frames were transmitted when in fact they were dropped.
> 
> This patch fixes the issue by ensureing the return value properly
> indicates the actual number of frames successfully transmitted, rather than
> potentially reporting success for all frames when some could not transmit.
> 
> Fixes: 6d6b39f180b8 ("net: fec: add initial XDP support")
> Signed-off-by: Gagandeep Singh <g.singh@....com>
> Signed-off-by: Shenwei Wang <shenwei.wang@....com>

Unfortunately the previous version was silently applied, it seems:

https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=26312c685ae0bca61e06ac75ee158b1e69546415

Could you send an incremental fix, on top of that patch?
-- 
pw-bot: cr