linux-kernel - Re: [PATCH] net: exit immediately when encounter ipv6 fragment in skb_checksum_setup

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Message-Id: <20200827.091244.2116589061763488368.davem@davemloft.net>
Date:   Thu, 27 Aug 2020 09:12:44 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     linmiaohe@...wei.com
Cc:     kuba@...nel.org, pshelar@....org, fw@...len.de,
        martin.varghese@...ia.com, edumazet@...gle.com,
        dcaratti@...hat.com, steffen.klassert@...unet.com,
        pabeni@...hat.com, shmulik@...anetworks.com,
        kyk.segfault@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: exit immediately when encounter ipv6 fragment in
 skb_checksum_setup_ipv6()

From: Miaohe Lin <linmiaohe@...wei.com>
Date: Thu, 27 Aug 2020 07:21:59 -0400

> skb_checksum_setup_ipv6() always return -EPROTO if ipv6 packet is fragment.
> So we should not continue to parse other header type in this case. Also
> remove unnecessary local variable 'fragment'.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>

Again, this optimization is arguable at best.  The code functions fine and
correctly as-is.

I'm not applying this, sorry.