linux-kernel - Re: [net-next PATCH 1/3] net: dsa: tag_qca: return early if dev is not found

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Message-ID: <ZMDWic7Wo/bJBnjG@corigine.com>
Date:   Wed, 26 Jul 2023 10:17:13 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Atin Bainada <hi@...nb.me>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [net-next PATCH 1/3] net: dsa: tag_qca: return early if dev is
 not found

On Mon, Jul 24, 2023 at 05:30:56AM +0200, Christian Marangi wrote:
> Currently checksum is recalculated and dsa tag stripped even if we later
> don't find the dev.
> 
> To improve code, exit early if we don't find the dev and skip additional
> operation on the skb since it will be freed anyway.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>

Reviewed-by: Simon Horman <simon.horman@...igine.com>