linux-kernel - Re: [PATCH v2] net: dsa: lan9303: handle hwaccel VLAN tags

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Message-ID: <20220216134707.g247fqnvfbr4udbj@skbuf>
Date:   Wed, 16 Feb 2022 15:47:07 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     Mans Rullgard <mans@...sr.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Juergen Borleis <jbe@...gutronix.de>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: dsa: lan9303: handle hwaccel VLAN tags

On Wed, Feb 16, 2022 at 12:46:34PM +0000, Mans Rullgard wrote:
> Check for a hwaccel VLAN tag on rx and use it if present.  Otherwise,
> use __skb_vlan_pop() like the other tag parsers do.  This fixes the case
> where the VLAN tag has already been consumed by the master.
> 
> Signed-off-by: Mans Rullgard <mans@...sr.com>
> ---
> Changes:
> - call skb_push/pull only where actually needed
> ---

Reviewed-by: Vladimir Oltean <olteanv@...il.com>