William Tu 51fa960d3b erspan: Check IFLA_GRE_ERSPAN_VER is set.
Add a check to make sure the IFLA_GRE_ERSPAN_VER is provided by users.

Fixes: f989d546a2d5 ("erspan: Add type I version 0 support.")
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: William Tu <u9012063@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-12 13:11:41 -07:00
..
2020-04-03 13:12:26 -07:00
2020-01-27 11:09:31 +01:00
2020-01-24 13:44:07 +01:00