From: Markus Stenberg <markus.stenberg@iki.fi>
Date: Tue, 5 May 2015 10:36:59 +0000 (+0300)
Subject: ipv6: Fixed source specific default route handling.
X-Git-Tag: omap-for-v4.2/wakeirq-drivers~2^2~30^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e16e888b525503be05b3aea64190e8b3bdef44d0;p=pandora-kernel.git

ipv6: Fixed source specific default route handling.

If there are only IPv6 source specific default routes present, the
host gets -ENETUNREACH on e.g. connect() because ip6_dst_lookup_tail
calls ip6_route_output first, and given source address any, it fails,
and ip6_route_get_saddr is never called.

The change is to use the ip6_route_get_saddr, even if the initial
ip6_route_output fails, and then doing ip6_route_output _again_ after
we have appropriate source address available.

Note that this is '99% fix' to the problem; a correct fix would be to
do route lookups only within addrconf.c when picking a source address,
and never call ip6_route_output before source address has been
populated.

Signed-off-by: Markus Stenberg <markus.stenberg@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
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