switchdev: skip over ports returning -EOPNOTSUPP when recursing ports

This allows us to recurse over all the ports, skipping over unsupporting
ports.  Without the change, the recursion would stop at first unsupported
port.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/switchdev.h

@@ -16,6 +16,7 @@
 #include <linux/list.h>
 
 #define SWITCHDEV_F_NO_RECURSE		BIT(0)
+#define SWITCHDEV_F_SKIP_EOPNOTSUPP	BIT(1)
 
 struct switchdev_trans_item {
 	struct list_head list;