[PATCH net-next V15 2/3] Check for vlan ethernet types for 8021.q or 802.1ad
From: Thomas F Herbert <hidden>
Date: 2015-10-10 23:41:01
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Signed-off-by: Thomas F Herbert <redacted> --- include/linux/if_vlan.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 67ce5bd..88d1be4 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h@@ -627,6 +627,23 @@ static inline netdev_features_t vlan_features_check(const struct sk_buff *skb, return features; } +/** + * eth_type_vlan - check for valid vlan ether type. + * @ethertype: ether type to check + * + * Returns true if the ether type is a vlan ether type. + */ +static inline bool eth_type_vlan(__be16 ethertype) +{ + switch (ethertype) { + case (htons(ETH_P_8021Q)): + return true; + case (htons(ETH_P_8021AD)): + return true; + default: + return false; + } +} /** * compare_vlan_header - Compare two vlan headers
--
2.4.3