From: David Miller <davem@davemloft.net>
To: lucien.xin@gmail.com
Cc: netdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
christophe.leroy@c-s.fr, mpe@ellerman.id.au,
roopa@cumulusnetworks.com
Subject: Re: [PATCH net] powerpc: use big endian to hash len and proto in csum_ipv6_magic
Date: Tue, 11 Sep 2018 23:01:05 -0700 (PDT) [thread overview]
Message-ID: <20180911.230105.563027666901362955.davem@davemloft.net> (raw)
In-Reply-To: <9183876a4a8ff0099686521d60f395a5230b67ed.1536401712.git.lucien.xin@gmail.com>
From: Xin Long <lucien.xin@gmail.com>
Date: Sat, 8 Sep 2018 18:15:12 +0800
> The function csum_ipv6_magic doesn't convert len and proto to big
> endian before doing ipv6 csum hash, which is not consistent with
> RFC and other arches.
>
> Jianlin found it when ICMPv6 packets from other hosts were dropped
> in the powerpc64 system.
>
> This patch is to fix it by using instruction 'lwbrx' to do this
> conversion in powerpc32/64 csum_ipv6_magic.
>
> Fixes: e9c4943a107b ("powerpc: Implement csum_ipv6_magic in assembly")
> Reported-by: Jianlin Shi <jishi@redhat.com>
> Signed-off-by: Xin Long <lucien.xin@gmail.com>
Xin, please address the feedback you were given.
Thank you.
next prev parent reply other threads:[~2018-09-12 6:01 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-08 10:15 [PATCH net] powerpc: use big endian to hash len and proto in csum_ipv6_magic Xin Long
2018-09-08 16:33 ` LEROY Christophe
2018-09-12 6:01 ` David Miller [this message]
2018-09-12 6:27 ` Christophe LEROY
2018-09-12 6:27 ` Xin Long
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