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tipc: let broadcast transmission use new link transmit function

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This commit simplifies the broadcast link transmission function, by
leveraging previous changes to the link transmission function and the
broadcast transmission link life cycle.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Paul Maloy
2015-10-22 08:51:39 -04:00
committed by David S. Miller
parent c1ab3f1dea
commit 2f56612457
5 changed files with 85 additions and 57 deletions
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19
net/tipc/msg.c
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@@ -565,18 +565,22 @@ bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err)
/* tipc_msg_reassemble() - clone a buffer chain of fragments and
* reassemble the clones into one message
*/
struct sk_buff *tipc_msg_reassemble(struct sk_buff_head *list)
bool tipc_msg_reassemble(struct sk_buff_head *list, struct sk_buff_head *rcvq)
{
struct sk_buff *skb;
struct sk_buff *skb, *_skb;
struct sk_buff *frag = NULL;
struct sk_buff *head = NULL;
int hdr_sz;
int hdr_len;
/* Copy header if single buffer */
if (skb_queue_len(list) == 1) {
skb = skb_peek(list);
hdr_sz = skb_headroom(skb) + msg_hdr_sz(buf_msg(skb));
return __pskb_copy(skb, hdr_sz, GFP_ATOMIC);
hdr_len = skb_headroom(skb) + msg_hdr_sz(buf_msg(skb));
_skb = __pskb_copy(skb, hdr_len, GFP_ATOMIC);
if (!_skb)
return false;
__skb_queue_tail(rcvq, _skb);
return true;
}
/* Clone all fragments and reassemble */
@@ -590,11 +594,12 @@ struct sk_buff *tipc_msg_reassemble(struct sk_buff_head *list)
if (!head)
goto error;
}
return frag;
__skb_queue_tail(rcvq, frag);
return true;
error:
pr_warn("Failed do clone local mcast rcv buffer\n");
kfree_skb(head);
return NULL;
return false;
}
/* tipc_skb_queue_sorted(); sort pkt into list according to sequence number