tree 229cc3fef63f1be681fb151a72a912869163fbb8
parent 713c43b315fc160dc4ff3da0020ebe09b8a65587
author David Ahern <dsa@cumulusnetworks.com> 1488844651 -0800
committer David S. Miller <davem@davemloft.net> 1489093488 -0800

net: ipv6: Remove redundant RTA_OIF in multipath routes

Dinesh reported that RTA_MULTIPATH nexthops are 8-bytes larger with IPv6
than IPv4. The recent refactoring for multipath support in netlink
messages does discriminate between non-multipath which needs the OIF
and multipath which adds a rtnexthop struct for each hop making the
RTA_OIF attribute redundant. Resolve by adding a flag to the info
function to skip the oif for multipath.

Fixes: beb1afac518d ("net: ipv6: Add support to dump multipath routes
       via RTA_MULTIPATH attribute")
Reported-by: Dinesh Dutt <ddutt@cumulusnetworks.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>