Unfortunately I'm still seeing a patch failure against current master:
Applying: datapath-windows: Support for custom VXLAN tunnel port
/home/blp/nicira/ovs/.git/rebase-apply/patch:919: trailing whitespace.
/home/blp/nicira/ovs/.git/rebase-apply/patch:1959: trailing whitespace.
NT
The kernel datapath supports only port 4789 for VXLAN tunnel creation.
Added support in order to allow for the VXLAN tunnel port to be
configurable to any port number set by the userspace.
The patch also checks to see if an existing WFP filter, for the
necessary UDP tunnel port, is already created
