From: Eric Dumazet <edumazet@google.com>
Date: Mon, 15 Nov 2021 17:05:52 +0000 (-0800)
Subject: net: gro: move skb_gro_receive_list to udp_offload.c
X-Git-Tag: v5.16.15~98
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d9d4122ea35e6ec6b7b3034de690b1d8e656bf98;p=thirdparty%2Fkernel%2Fstable.git

net: gro: move skb_gro_receive_list to udp_offload.c

[ Upstream commit 0b935d7f8c07bf0a192712bdbf76dbf45ef8b115 ]

This helper is used once, no need to keep it in fat net/core/skbuff.c

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 049858c671efa..7500ac08c9ba2 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3007,7 +3007,6 @@ struct net_device *dev_get_by_napi_id(unsigned int napi_id);
 int netdev_get_name(struct net *net, char *name, int ifindex);
 int dev_restart(struct net_device *dev);
 int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb);
-int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb);
 
 static inline unsigned int skb_gro_offset(const struct sk_buff *skb)
 {
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 56e23333e7080..f1e3d70e89870 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3919,32 +3919,6 @@ err_linearize:
 }
 EXPORT_SYMBOL_GPL(skb_segment_list);
 
-int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb)
-{
-	if (unlikely(p->len + skb->len >= 65536))
-		return -E2BIG;
-
-	if (NAPI_GRO_CB(p)->last == p)
-		skb_shinfo(p)->frag_list = skb;
-	else
-		NAPI_GRO_CB(p)->last->next = skb;
-
-	skb_pull(skb, skb_gro_offset(skb));
-
-	NAPI_GRO_CB(p)->last = skb;
-	NAPI_GRO_CB(p)->count++;
-	p->data_len += skb->len;
-
-	/* sk owenrship - if any - completely transferred to the aggregated packet */
-	skb->destructor = NULL;
-	p->truesize += skb->truesize;
-	p->len += skb->len;
-
-	NAPI_GRO_CB(skb)->same_flow = 1;
-
-	return 0;
-}
-
 /**
  *	skb_segment - Perform protocol segmentation on skb.
  *	@head_skb: buffer to segment
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 86d32a1e62ac9..c2398f9e46f06 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -424,6 +424,33 @@ out:
 	return segs;
 }
 
+static int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb)
+{
+	if (unlikely(p->len + skb->len >= 65536))
+		return -E2BIG;
+
+	if (NAPI_GRO_CB(p)->last == p)
+		skb_shinfo(p)->frag_list = skb;
+	else
+		NAPI_GRO_CB(p)->last->next = skb;
+
+	skb_pull(skb, skb_gro_offset(skb));
+
+	NAPI_GRO_CB(p)->last = skb;
+	NAPI_GRO_CB(p)->count++;
+	p->data_len += skb->len;
+
+	/* sk owenrship - if any - completely transferred to the aggregated packet */
+	skb->destructor = NULL;
+	p->truesize += skb->truesize;
+	p->len += skb->len;
+
+	NAPI_GRO_CB(skb)->same_flow = 1;
+
+	return 0;
+}
+
+
 #define UDP_GRO_CNT_MAX 64
 static struct sk_buff *udp_gro_receive_segment(struct list_head *head,
 					       struct sk_buff *skb)