netdev - Re: [PATCH net] net/bpfilter: initialize pos in __bpfilter_process

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Message-ID: <20200803153630.GA2809@supreme>
Date:   Mon, 3 Aug 2020 12:36:30 -0300
From:   Rodrigo Madera <rodrigo.madera@...il.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Christoph Hellwig <hch@....de>, davem@...emloft.net,
        kuba@...nel.org, ast@...nel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH net] net/bpfilter: initialize pos in
 __bpfilter_process_sockopt

On Mon, Aug 03, 2020 at 04:56:35PM +0200, Daniel Borkmann wrote:
> On 8/1/20 9:48 PM, Alexei Starovoitov wrote:
> 
> Several folks reported that with v5.8-rc kernels their console is spammed with
> 'bpfilter: write fail' messages [0]. Given this affected the 5.8 release and
> the fix was a one-line change, it felt appropriate to route it there. Why was
> a4fa458950b4 not pushed into bpf tree given it was affected there too? Either
> way, we can undo the double pos assignment upon tree sync..

Just as a side note, please note it was more than spamming on the console.

It prevented the subsystem from working at all.

Best regards,
Madera