1 files changed, 7 insertions, 15 deletions

diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index 1121a9d5fed9..2b9cb5398335 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -10,6 +10,7 @@
 #include <linux/init.h>
 #include <net/protocol.h>
 #include <net/gre.h>
+#include <net/gro.h>
 
 static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
 				       netdev_features_t features)
@@ -136,12 +137,9 @@ static struct sk_buff *gre_gro_receive(struct list_head *head,
 
 	off = skb_gro_offset(skb);
 	hlen = off + sizeof(*greh);
-	greh = skb_gro_header_fast(skb, off);
-	if (skb_gro_header_hard(skb, hlen)) {
-		greh = skb_gro_header_slow(skb, hlen, off);
-		if (unlikely(!greh))
-			goto out;
-	}
+	greh = skb_gro_header(skb, hlen, off);
+	if (unlikely(!greh))
+		goto out;
 
 	/* Only support version 0 and K (key), C (csum) flags. Note that
 	 * although the support for the S (seq#) flag can be added easily
@@ -162,10 +160,9 @@ static struct sk_buff *gre_gro_receive(struct list_head *head,
 
 	type = greh->protocol;
 
-	rcu_read_lock();
 	ptype = gro_find_receive_by_type(type);
 	if (!ptype)
-		goto out_unlock;
+		goto out;
 
 	grehlen = GRE_HEADER_SECTION;
 
@@ -179,13 +176,13 @@ static struct sk_buff *gre_gro_receive(struct list_head *head,
 	if (skb_gro_header_hard(skb, hlen)) {
 		greh = skb_gro_header_slow(skb, hlen, off);
 		if (unlikely(!greh))
-			goto out_unlock;
+			goto out;
 	}
 
 	/* Don't bother verifying checksum if we're going to flush anyway. */
 	if ((greh->flags & GRE_CSUM) && !NAPI_GRO_CB(skb)->flush) {
 		if (skb_gro_checksum_simple_validate(skb))
-			goto out_unlock;
+			goto out;
 
 		skb_gro_checksum_try_convert(skb, IPPROTO_GRE,
 					     null_compute_pseudo);
@@ -229,8 +226,6 @@ static struct sk_buff *gre_gro_receive(struct list_head *head,
 	pp = call_gro_receive(ptype->callbacks.gro_receive, head, skb);
 	flush = 0;
 
-out_unlock:
-	rcu_read_unlock();
 out:
 	skb_gro_flush_final(skb, pp, flush);
 
@@ -255,13 +250,10 @@ static int gre_gro_complete(struct sk_buff *skb, int nhoff)
 	if (greh->flags & GRE_CSUM)
 		grehlen += GRE_HEADER_SECTION;
 
-	rcu_read_lock();
 	ptype = gro_find_complete_by_type(type);
 	if (ptype)
 		err = ptype->callbacks.gro_complete(skb, nhoff + grehlen);
 
-	rcu_read_unlock();
-
 	skb_set_inner_mac_header(skb, nhoff + grehlen);
 
 	return err;