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-rw-r--r--net/tipc/bearer.c31
-rw-r--r--net/tipc/udp_media.c12
2 files changed, 15 insertions, 28 deletions
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 1133391..c3fa13a 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -414,10 +414,9 @@ void tipc_disable_l2_media(struct tipc_bearer *b)
* @b_ptr: the bearer through which the packet is to be sent
* @dest: peer destination address
*/
-int tipc_l2_send_msg(struct net *net, struct sk_buff *buf,
+int tipc_l2_send_msg(struct net *net, struct sk_buff *skb,
struct tipc_bearer *b, struct tipc_media_addr *dest)
{
- struct sk_buff *clone;
struct net_device *dev;
int delta;
@@ -425,23 +424,19 @@ int tipc_l2_send_msg(struct net *net, struct sk_buff *buf,
if (!dev)
return 0;
- clone = skb_clone(buf, GFP_ATOMIC);
- if (!clone)
- return 0;
-
- delta = dev->hard_header_len - skb_headroom(buf);
+ delta = dev->hard_header_len - skb_headroom(skb);
if ((delta > 0) &&
- pskb_expand_head(clone, SKB_DATA_ALIGN(delta), 0, GFP_ATOMIC)) {
- kfree_skb(clone);
+ pskb_expand_head(skb, SKB_DATA_ALIGN(delta), 0, GFP_ATOMIC)) {
+ kfree_skb(skb);
return 0;
}
- skb_reset_network_header(clone);
- clone->dev = dev;
- clone->protocol = htons(ETH_P_TIPC);
- dev_hard_header(clone, dev, ETH_P_TIPC, dest->value,
- dev->dev_addr, clone->len);
- dev_queue_xmit(clone);
+ skb_reset_network_header(skb);
+ skb->dev = dev;
+ skb->protocol = htons(ETH_P_TIPC);
+ dev_hard_header(skb, dev, ETH_P_TIPC, dest->value,
+ dev->dev_addr, skb->len);
+ dev_queue_xmit(skb);
return 0;
}
@@ -491,8 +486,6 @@ void tipc_bearer_xmit_skb(struct net *net, u32 bearer_id,
if (likely(b))
b->media->send_msg(net, skb, b, dest);
rcu_read_unlock();
- /* Until we remove cloning in tipc_l2_send_msg(): */
- kfree_skb(skb);
}
/* tipc_bearer_xmit() -send buffer to destination over bearer
@@ -514,8 +507,6 @@ void tipc_bearer_xmit(struct net *net, u32 bearer_id,
skb_queue_walk_safe(xmitq, skb, tmp) {
__skb_dequeue(xmitq);
b->media->send_msg(net, skb, b, dst);
- /* Until we remove cloning in tipc_l2_send_msg(): */
- kfree_skb(skb);
}
}
rcu_read_unlock();
@@ -541,8 +532,6 @@ void tipc_bearer_bc_xmit(struct net *net, u32 bearer_id,
msg_set_mc_netid(hdr, net_id);
__skb_dequeue(xmitq);
b->media->send_msg(net, skb, b, &b->bcast_addr);
- /* Until we remove cloning in tipc_l2_send_msg(): */
- kfree_skb(skb);
}
}
rcu_read_unlock();
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 0021c01..816914e 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -155,14 +155,12 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
struct udp_bearer *ub;
struct udp_media_addr *dst = (struct udp_media_addr *)&dest->value;
struct udp_media_addr *src = (struct udp_media_addr *)&b->addr.value;
- struct sk_buff *clone;
struct rtable *rt;
if (skb_headroom(skb) < UDP_MIN_HEADROOM)
pskb_expand_head(skb, UDP_MIN_HEADROOM, 0, GFP_ATOMIC);
- clone = skb_clone(skb, GFP_ATOMIC);
- skb_set_inner_protocol(clone, htons(ETH_P_TIPC));
+ skb_set_inner_protocol(skb, htons(ETH_P_TIPC));
ub = rcu_dereference_rtnl(b->media_ptr);
if (!ub) {
err = -ENODEV;
@@ -172,7 +170,7 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
struct flowi4 fl = {
.daddr = dst->ipv4.s_addr,
.saddr = src->ipv4.s_addr,
- .flowi4_mark = clone->mark,
+ .flowi4_mark = skb->mark,
.flowi4_proto = IPPROTO_UDP
};
rt = ip_route_output_key(net, &fl);
@@ -181,7 +179,7 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
goto tx_error;
}
ttl = ip4_dst_hoplimit(&rt->dst);
- err = udp_tunnel_xmit_skb(rt, ub->ubsock->sk, clone,
+ err = udp_tunnel_xmit_skb(rt, ub->ubsock->sk, skb,
src->ipv4.s_addr,
dst->ipv4.s_addr, 0, ttl, 0,
src->udp_port, dst->udp_port,
@@ -204,7 +202,7 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
if (err)
goto tx_error;
ttl = ip6_dst_hoplimit(ndst);
- err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, clone,
+ err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, skb,
ndst->dev, &src->ipv6,
&dst->ipv6, 0, ttl, src->udp_port,
dst->udp_port, false);
@@ -213,7 +211,7 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
return err;
tx_error:
- kfree_skb(clone);
+ kfree_skb(skb);
return err;
}