[ovs-dev] [PATCH] openvswitch: Make IPv6 packet parsing dependent on IPv6 config

Jesse Gross jesse at nicira.com
Fri Nov 16 17:33:09 UTC 2012


On Fri, Nov 16, 2012 at 7:40 AM, Vlad Yasevich <vyasevic at redhat.com> wrote:

> Openvswitch attempts to use IPv6 packet parsing functions without
> any dependency on IPv6 (unlike every other place in kernel).  Pull
> the IPv6 code in openvswitch togeter and put a conditional that's
> dependent on CONFIG_IPV6.
>
> Resolves:
> net/built-in.o: In function `ovs_flow_extract':
> (.text+0xbf5d5): undefined reference to `ipv6_skip_exthdr'
>
> Signed-off-by: Vlad Yasevich <vyasevic at redhat.com>


Doesn't this move in the opposite direction of your patches to make IPv6
GSO/GRO always available?  The packets being processed here
are generally created by the guest but with Open vSwitch running on the
host.  Also, ipv6_skip_exthdr() is in exthdrs_core.c, so it actually is
always available.  I suspect that the real problem is that the dependency
on the ipv6 directory changed to CONFIG_INET and Open vSwitch should now
depend on this.
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