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f20367df1a
The via address is optional for a single path route, yet is mandatory when the multipath attribute is used: # ip -f mpls route add 100 dev lo # ip -f mpls route add 101 nexthop dev lo RTNETLINK answers: Invalid argument Make them consistent by making the via address optional when the RTA_MULTIPATH attribute is being parsed so that both forms of specifying the route work. Signed-off-by: Robert Shearman <rshearma@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>