netdev - Re: [IPV4] ip_gre: should take care of CONFIG_IPV6

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Message-Id: <20080122.022246.174359624.davem@davemloft.net>
Date:	Tue, 22 Jan 2008 02:22:46 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	kaber@...sh.net
Cc:	dada1@...mosbay.com, netdev@...r.kernel.org
Subject: Re: [IPV4] ip_gre: should take care of CONFIG_IPV6_MODULE

From: Patrick McHardy <kaber@...sh.net>
Date: Tue, 22 Jan 2008 09:21:26 +0100

> Eric Dumazet wrote:
> > If IPV6 is configured as a module, GRE code misses some IPV6 parts.
> 
> 
> I believe this is intentional to avoid a runtime dependency on ipv6.
> Fixing this without pulling in the ipv6 module would be preferrable.

Unfortunately this is true.

The only symbol it really needs that isn't provided statically
is icmpv6_send() which is very unfortunate.

Other things it wants like ipv6_addr_type() are already provided
statically in net/ipv6/addrconf_core.c and the appropriate
net/ipv6/Makefile:obj-y rules.
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