netdev - [PATCH net-next 1/3] net/vlan: introduce __vlan_hwaccel_clear

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Message-Id: <deadd7b0b65b538196f74876384f7b9bd12a0804.1483487429.git.mirq-linux@rere.qmqm.pl>
Date:   Wed,  4 Jan 2017 00:53:50 +0100 (CET)
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     netdev@...r.kernel.org
Subject: [PATCH net-next 1/3] net/vlan: introduce __vlan_hwaccel_clear_tag()
 helper

Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
 include/linux/if_vlan.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 8d5fcd6284ce..38be9041cde4 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -382,6 +382,17 @@ static inline struct sk_buff *vlan_insert_tag_set_proto(struct sk_buff *skb,
 	return skb;
 }
 
+/**
+ * __vlan_hwaccel_clear_tag - clear hardware accelerated VLAN info
+ * @skb: skbuff to clear
+ *
+ * Clears the VLAN information from @skb
+ */
+static inline void __vlan_hwaccel_clear_tag(struct sk_buff *skb)
+{
+	skb->vlan_tci = 0;
+}
+
 /*
  * __vlan_hwaccel_push_inside - pushes vlan tag to the payload
  * @skb: skbuff to tag
@@ -396,7 +407,7 @@ static inline struct sk_buff *__vlan_hwaccel_push_inside(struct sk_buff *skb)
 	skb = vlan_insert_tag_set_proto(skb, skb->vlan_proto,
 					skb_vlan_tag_get(skb));
 	if (likely(skb))
-		skb->vlan_tci = 0;
+		__vlan_hwaccel_clear_tag(skb);
 	return skb;
 }
 
-- 
2.11.0