[PATCH net-next V10 2/4] General check for vlan ethernet types
From: Thomas F Herbert <hidden>
Date: 2015-06-02 17:51:13
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch adds a function to check for vlan ethernet types. There is a use case in openvswitch and it should be useful elsewhere. Signed-off-by: Thomas F Herbert <redacted> --- include/linux/if_vlan.h | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 920e445..3713454 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h@@ -627,5 +627,14 @@ static inline netdev_features_t vlan_features_check(const struct sk_buff *skb, return features; } +/** + * Check for legal valid vlan ether type. + */ +static inline bool eth_type_vlan(__be16 ethertype) +{ + if (ethertype == htons(ETH_P_8021Q) || ethertype == htons(ETH_P_8021AD)) + return true; + return false; +} #endif /* !(_LINUX_IF_VLAN_H_) */
--
2.1.0