netdev - Re: [PATCH RFC 08/24] IPVS: Make protocol handler functions support IPv6

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Date:	Thu, 21 Aug 2008 11:12:12 -0400
From:	Brian Haley <brian.haley@...com>
To:	Julius Volz <juliusv@...gle.com>
CC:	netdev@...r.kernel.org, lvs-devel@...r.kernel.org,
	horms@...ge.net.au, kaber@...sh.net, vbusam@...gle.com
Subject: Re: [PATCH RFC 08/24] IPVS: Make protocol handler functions support
 IPv6

Julius Volz wrote:
> Still, I think my original interpretation was correct? It's always
> used with constant values and there are many usages similar to this:
> 
> skb->protocol = __constant_htons(ETH_P_802_3);
> 
> Someone feel free to correct me.

I know it's a minor point, but look at tcp_ipv6.c:

         if (skb->protocol == htons(ETH_P_IP))
                 return tcp_v4_conn_request(sk, skb);

That's different from the code you quoted that's doing an assignment. 
__constant_htons() isn't used anywhere in an if() statement, although I 
did find a couple in the bonding driver that should be fixed.

-Brian
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