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authorJon Maloy <jon.maloy@ericsson.com>2015-07-29 18:28:01 -0400
committerDavid S. Miller <davem@davemloft.net>2015-07-29 16:48:16 -0700
commit5a4c355229da12558b5ded0775f4d0bc6650d28d (patch)
treebbac41d545c27dfc8d50babf8286e3e8c1a9956b /net/tipc
parent73d0fcf2f487465f73329ee11ae900a774408fe5 (diff)
downloadblackbird-op-linux-5a4c355229da12558b5ded0775f4d0bc6650d28d.tar.gz
blackbird-op-linux-5a4c355229da12558b5ded0775f4d0bc6650d28d.zip
tipc: fix bug in broadcast synch message create function
In commit d999297c3dbbe7fdd832f7fa4ec84301e170b3e6 ("tipc: reduce locking scope during packet reception") we introduced a new function tipc_build_bcast_sync_msg(), which carries initial synchronization data between two nodes at first contact and at re-contact. In this function, we missed to add synchronization data, with the effect that the broadcast link endpoints will fail to synchronize correctly at re-contact between a running and a restarted node. All other cases work as intended. With this commit, we fix this bug. Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
-rw-r--r--net/tipc/link.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c
index b63d57390bb7..cc40aa6eb66c 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -294,11 +294,14 @@ static void tipc_link_build_bcast_sync_msg(struct tipc_link *l,
{
struct sk_buff *skb;
struct sk_buff_head list;
+ u16 last_sent;
skb = tipc_msg_create(BCAST_PROTOCOL, STATE_MSG, INT_H_SIZE,
0, l->addr, link_own_addr(l), 0, 0, 0);
if (!skb)
return;
+ last_sent = tipc_bclink_get_last_sent(l->owner->net);
+ msg_set_last_bcast(buf_msg(skb), last_sent);
__skb_queue_head_init(&list);
__skb_queue_tail(&list, skb);
tipc_link_xmit(l, &list, xmitq);
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