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Diffstat (limited to 'net/llc/llc_station.c')
-rw-r--r--net/llc/llc_station.c87
1 files changed, 6 insertions, 81 deletions
diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c
index 917d700791ba..3bdb888f8501 100644
--- a/net/llc/llc_station.c
+++ b/net/llc/llc_station.c
@@ -32,14 +32,9 @@
*
* @mac_sa: MAC source address
* @sap_list: list of related SAPs
- * @ev_q: events entering state mach.
* @mac_pdu_q: PDUs ready to send to MAC
*/
struct llc_station {
- struct {
- struct sk_buff_head list;
- spinlock_t lock;
- } ev_q;
struct sk_buff_head mac_pdu_q;
};
@@ -216,79 +211,6 @@ static struct llc_station_state_trans *
}
/**
- * llc_station_free_ev - frees an event
- * @skb: Address of the event
- *
- * Frees an event.
- */
-static void llc_station_free_ev(struct sk_buff *skb)
-{
- kfree_skb(skb);
-}
-
-/**
- * llc_station_next_state - processes event and goes to the next state
- * @skb: Address of the event
- *
- * Processes an event, executes any transitions related to that event and
- * updates the state of the station.
- */
-static u16 llc_station_next_state(struct sk_buff *skb)
-{
- u16 rc = 1;
- struct llc_station_state_trans *trans;
-
- trans = llc_find_station_trans(skb);
- if (trans)
- /* got the state to which we next transition; perform the
- * actions associated with this transition before actually
- * transitioning to the next state
- */
- rc = llc_exec_station_trans_actions(trans, skb);
- else
- /* event not recognized in current state; re-queue it for
- * processing again at a later time; return failure
- */
- rc = 0;
- llc_station_free_ev(skb);
- return rc;
-}
-
-/**
- * llc_station_service_events - service events in the queue
- *
- * Get an event from the station event queue (if any); attempt to service
- * the event; if event serviced, get the next event (if any) on the event
- * queue; if event not service, re-queue the event on the event queue and
- * attempt to service the next event; when serviced all events in queue,
- * finished; if don't transition to different state, just service all
- * events once; if transition to new state, service all events again.
- * Caller must hold llc_main_station.ev_q.lock.
- */
-static void llc_station_service_events(void)
-{
- struct sk_buff *skb;
-
- while ((skb = skb_dequeue(&llc_main_station.ev_q.list)) != NULL)
- llc_station_next_state(skb);
-}
-
-/**
- * llc_station_state_process - queue event and try to process queue.
- * @skb: Address of the event
- *
- * Queues an event (on the station event queue) for handling by the
- * station state machine and attempts to process any queued-up events.
- */
-static void llc_station_state_process(struct sk_buff *skb)
-{
- spin_lock_bh(&llc_main_station.ev_q.lock);
- skb_queue_tail(&llc_main_station.ev_q.list, skb);
- llc_station_service_events();
- spin_unlock_bh(&llc_main_station.ev_q.lock);
-}
-
-/**
* llc_station_rcv - send received pdu to the station state machine
* @skb: received frame.
*
@@ -296,14 +218,17 @@ static void llc_station_state_process(struct sk_buff *skb)
*/
static void llc_station_rcv(struct sk_buff *skb)
{
- llc_station_state_process(skb);
+ struct llc_station_state_trans *trans;
+
+ trans = llc_find_station_trans(skb);
+ if (trans)
+ llc_exec_station_trans_actions(trans, skb);
+ kfree_skb(skb);
}
void __init llc_station_init(void)
{
skb_queue_head_init(&llc_main_station.mac_pdu_q);
- skb_queue_head_init(&llc_main_station.ev_q.list);
- spin_lock_init(&llc_main_station.ev_q.lock);
llc_set_station_handler(llc_station_rcv);
}