From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas F Herbert Subject: [PATCH net-next V10 2/4] General check for vlan ethernet types Date: Tue, 2 Jun 2015 13:50:42 -0400 Message-ID: <1433267444-26025-3-git-send-email-thomasfherbert@gmail.com> References: <1433267444-26025-1-git-send-email-thomasfherbert@gmail.com> Cc: therbert@redhat.com, dev@openvswitch.org, Thomas F Herbert To: netdev@vger.kernel.org, pshelar@nicira.com Return-path: Received: from mail-yh0-f45.google.com ([209.85.213.45]:34757 "EHLO mail-yh0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759547AbbFBRvN (ORCPT ); Tue, 2 Jun 2015 13:51:13 -0400 Received: by yhom41 with SMTP id m41so43427224yho.1 for ; Tue, 02 Jun 2015 10:51:13 -0700 (PDT) In-Reply-To: <1433267444-26025-1-git-send-email-thomasfherbert@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: 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 --- 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