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llc2: Remove the station send queue 

We only ever put one skb on the send queue, and then immediately
send it.  Remove the queue and call dev_queue_xmit() directly.

This leaves struct llc_station empty, so remove that as well.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2012-09-15 17:11:32 +00:00 committed by David S. Miller
parent 04d191c259
commit 5ecf9eea26
1 changed files with 2 additions and 32 deletions
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34
net/llc/llc_station.c
View File

@ -25,19 +25,6 @@
#include <net/llc_s_st.h>
#include <net/llc_pdu.h>
/**
* struct llc_station - LLC station component
*
* SAP and connection resource manager, one per adapter.
*
* @mac_sa: MAC source address
* @sap_list: list of related SAPs
* @mac_pdu_q: PDUs ready to send to MAC
*/
struct llc_station {
struct sk_buff_head mac_pdu_q;
};
typedef int (*llc_station_ev_t)(struct sk_buff *skb);
typedef int (*llc_station_action_t)(struct sk_buff *skb);
@ -48,8 +35,6 @@ struct llc_station_state_trans {
llc_station_action_t *ev_actions;
};
static struct llc_station llc_main_station;
static int llc_stat_ev_rx_null_dsap_xid_c(struct sk_buff *skb)
{
struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
@ -70,20 +55,6 @@ static int llc_stat_ev_rx_null_dsap_test_c(struct sk_buff *skb)
!pdu->dsap ? 0 : 1; /* NULL DSAP */
}
/**
* llc_station_send_pdu - queues PDU to send
* @skb: Address of the PDU
*
* Queues a PDU to send to the MAC layer.
*/
static void llc_station_send_pdu(struct sk_buff *skb)
{
skb_queue_tail(&llc_main_station.mac_pdu_q, skb);
while ((skb = skb_dequeue(&llc_main_station.mac_pdu_q)) != NULL)
if (dev_queue_xmit(skb))
break;
}
static int llc_station_ac_send_xid_r(struct sk_buff *skb)
{
u8 mac_da[ETH_ALEN], dsap;
@ -101,7 +72,7 @@ static int llc_station_ac_send_xid_r(struct sk_buff *skb)
rc = llc_mac_hdr_init(nskb, skb->dev->dev_addr, mac_da);
if (unlikely(rc))
goto free;
llc_station_send_pdu(nskb);
dev_queue_xmit(nskb);
out:
return rc;
free:
@ -130,7 +101,7 @@ static int llc_station_ac_send_test_r(struct sk_buff *skb)
rc = llc_mac_hdr_init(nskb, skb->dev->dev_addr, mac_da);
if (unlikely(rc))
goto free;
llc_station_send_pdu(nskb);
dev_queue_xmit(nskb);
out:
return rc;
free:
@ -228,7 +199,6 @@ static void llc_station_rcv(struct sk_buff *skb)
void __init llc_station_init(void)
{
skb_queue_head_init(&llc_main_station.mac_pdu_q);
llc_set_station_handler(llc_station_rcv);
}