net: Fix prefsrc lookups
authorDavid Ahern <dsa@cumulusnetworks.com>
Tue, 3 Nov 2015 23:59:28 +0000 (15:59 -0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 5 Nov 2015 02:34:37 +0000 (21:34 -0500)
commite1b8d903c6c3862160d2d5036806a94786c8fc4e
treef75c2a7a1712422891023ed0d62b77dcb7d08dfc
parent87e9f0315952b0dd8b5e51ba04beda03efc009d9
net: Fix prefsrc lookups

A bug report (https://bugzilla.kernel.org/show_bug.cgi?id=107071) noted
that the follwoing ip command is failing with v4.3:

    $ ip route add 10.248.5.0/24 dev bond0.250 table vlan_250 src 10.248.5.154
    RTNETLINK answers: Invalid argument

021dd3b8a142d changed the lookup of the given preferred source address to
use the table id passed in, but this assumes the local entries are in the
given table which is not necessarily true for non-VRF use cases. When
validating the preferred source fallback to the local table on failure.

Fixes: 021dd3b8a142d ("net: Add routes to the table associated with the device")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/fib_semantics.c