netdev - Re: [PATCH] net: dsa: tag_rtl4_a: Support also egress tags

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CALW65jZG35HNxYe=GXDGUVY6kLBExKczDM_pRU_ZrJ9QnHBUNA@mail.gmail.com>
Date:   Wed, 17 Feb 2021 13:37:21 +0800
From:   DENG Qingfang <dqfext@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        netdev <netdev@...r.kernel.org>,
        Mauri Sandberg <sandberg@...lfence.com>
Subject: Re: [PATCH] net: dsa: tag_rtl4_a: Support also egress tags

On Wed, Feb 17, 2021 at 11:29 AM Andrew Lunn <andrew@...n.ch> wrote:
>
> > +     /* Pad out to at least 60 bytes */
> > +     if (unlikely(eth_skb_pad(skb)))
> > +             return NULL;
>
> The core will do the padding for you. Turn on .tail_tag in
> dsa_device_ops.
>

Please don't. .tail_tag does far more than just padding.