netdev - Re: [PATCH] net: flow_dissector: fix thoff for IPPROTO

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Date:	Thu, 26 Sep 2013 09:05:24 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Nikolay Aleksandrov <nikolay@...hat.com>
Cc:	Daniel Borkmann <dborkman@...hat.com>, netdev@...r.kernel.org,
	davem@...emloft.net, andy@...yhouse.net, fubar@...ibm.com,
	vfalico@...hat.com
Subject: Re: [PATCH] net: flow_dissector: fix thoff for IPPROTO_AH

On Thu, 2013-09-26 at 17:48 +0200, Nikolay Aleksandrov wrote:

> 
> 1 question about my current patchset, can I leave it to get reviewed and if
> applied to post a follow-up for net-next that fixes the issue, or would you
> prefer a v4 that integrates the fix ?

I think your 1/3 patch only has to pass nhoff as value instead of
reference.

+__be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto)
+{
+       int poff = proto_ports_offset(ip_proto);
+
+       if (poff >= 0) {
+               __be32 *ports, _ports;
+
+               ports = skb_header_pointer(skb, thoff + poff,
+					   sizeof(_ports), &_ports);
+               if (ports)
+                       return *ports;
+       }
+
+       return 0;
+}



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