From: Xin Long <lucien....@gmail.com>
Date: Mon, 27 Aug 2018 18:41:32 +0800
> After erspan_ver is introudced, if erspan_ver is not set in iproute, its
> value will be left 0 by default. Since Commit 02f99df1875c ("erspan: fix
> invalid erspan version."), it has broken the traffic due to the version
> check in erspan_xmit if users are not aware of 'erspan_ver' param, like
> using an old version of iproute.
>
> To fix this compatibility problem, it sets erspan_ver to 1 by default
> when adding an erspan dev in erspan_setup. Note that we can't do it in
> ipgre_netlink_parms, as this function is also used by ipgre_changelink.
>
> Fixes: 02f99df1875c ("erspan: fix invalid erspan version.")
> Reported-by: Jianlin Shi <ji...@redhat.com>
> Signed-off-by: Xin Long <lucien....@gmail.com>
Applied and queued up for -stable.
