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[v2,net-next,4/7] net: Introduce passthru_features_check

Message ID 1427434277-27569-5-git-send-email-makita.toshiaki@lab.ntt.co.jp
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Toshiaki Makita March 27, 2015, 5:31 a.m. UTC 
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>
---
 include/linux/netdevice.h | 3 +++
 net/core/dev.c            | 8 ++++++++
 2 files changed, 11 insertions(+)
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Patch

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 08c4ab3..967bb4c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3657,6 +3657,9 @@  void netdev_change_features(struct net_device *dev);
 void netif_stacked_transfer_operstate(const struct net_device *rootdev,
 					struct net_device *dev);
 
+netdev_features_t passthru_features_check(struct sk_buff *skb,
+					  struct net_device *dev,
+					  netdev_features_t features);
 netdev_features_t netif_skb_features(struct sk_buff *skb);
 
 static inline bool net_gso_ok(netdev_features_t features, int gso_type)
diff --git a/net/core/dev.c b/net/core/dev.c
index cb46bad..3a06003 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)