net: Introduce passthru_features_check

As there are a number of (especially virtual) devices that don't
need the multiple vlan check, introduce passthru_features_check() for
convenience.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index cb46badbef5a..3a06003ecafd 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2562,6 +2562,14 @@ static netdev_features_t harmonize_features(struct sk_buff *skb,
         return features;
 }
 
+netdev_features_t passthru_features_check(struct sk_buff *skb,
+                                          struct net_device *dev,
+                                          netdev_features_t features)
+{
+        return features;
+}
+EXPORT_SYMBOL(passthru_features_check);
+
 static netdev_features_t dflt_features_check(const struct sk_buff *skb,
                                              struct net_device *dev,
                                              netdev_features_t features)