1 files changed, 14 insertions, 11 deletions

diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c
index 8fe48a24bad5..f37dbf8ef126 100644
--- a/net/llc/llc_station.c
+++ b/net/llc/llc_station.c
@@ -50,6 +50,10 @@ struct llc_station {
         struct sk_buff_head         mac_pdu_q;
 };
 
+#define LLC_STATION_ACK_TIME (3 * HZ)
+
+int sysctl_llc_station_ack_timeout = LLC_STATION_ACK_TIME;
+
 /* Types of events (possible values in 'ev->type') */
 #define LLC_STATION_EV_TYPE_SIMPLE      1
 #define LLC_STATION_EV_TYPE_CONDITION   2
@@ -218,7 +222,8 @@ static void llc_station_send_pdu(struct sk_buff *skb)
 
 static int llc_station_ac_start_ack_timer(struct sk_buff *skb)
 {
-        mod_timer(&llc_main_station.ack_timer, jiffies + LLC_ACK_TIME * HZ);
+        mod_timer(&llc_main_station.ack_timer,
+                  jiffies + sysctl_llc_station_ack_timeout);
         return 0;
 }
 
@@ -249,14 +254,14 @@ static int llc_station_ac_inc_xid_r_cnt_by_1(struct sk_buff *skb)
 static int llc_station_ac_send_null_dsap_xid_c(struct sk_buff *skb)
 {
         int rc = 1;
-        struct sk_buff *nskb = llc_alloc_frame();
+        struct sk_buff *nskb = llc_alloc_frame(NULL, skb->dev);
 
         if (!nskb)
                 goto out;
         llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, 0, LLC_PDU_CMD);
         llc_pdu_init_as_xid_cmd(nskb, LLC_XID_NULL_CLASS_2, 127);
         rc = llc_mac_hdr_init(nskb, llc_station_mac_sa, llc_station_mac_sa);
-        if (rc)
+        if (unlikely(rc))
                 goto free;
         llc_station_send_pdu(nskb);
 out:
@@ -270,18 +275,17 @@ static int llc_station_ac_send_xid_r(struct sk_buff *skb)
 {
         u8 mac_da[ETH_ALEN], dsap;
         int rc = 1;
-        struct sk_buff* nskb = llc_alloc_frame();
+        struct sk_buff* nskb = llc_alloc_frame(NULL, skb->dev);
 
         if (!nskb)
                 goto out;
         rc = 0;
-        nskb->dev = skb->dev;
         llc_pdu_decode_sa(skb, mac_da);
         llc_pdu_decode_ssap(skb, &dsap);
         llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
         llc_pdu_init_as_xid_rsp(nskb, LLC_XID_NULL_CLASS_2, 127);
         rc = llc_mac_hdr_init(nskb, llc_station_mac_sa, mac_da);
-        if (rc)
+        if (unlikely(rc))
                 goto free;
         llc_station_send_pdu(nskb);
 out:
@@ -295,18 +299,17 @@ static int llc_station_ac_send_test_r(struct sk_buff *skb)
 {
         u8 mac_da[ETH_ALEN], dsap;
         int rc = 1;
-        struct sk_buff *nskb = llc_alloc_frame();
+        struct sk_buff *nskb = llc_alloc_frame(NULL, skb->dev);
 
         if (!nskb)
                 goto out;
         rc = 0;
-        nskb->dev = skb->dev;
         llc_pdu_decode_sa(skb, mac_da);
         llc_pdu_decode_ssap(skb, &dsap);
         llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
         llc_pdu_init_as_test_rsp(nskb, skb);
         rc = llc_mac_hdr_init(nskb, llc_station_mac_sa, mac_da);
-        if (rc)
+        if (unlikely(rc))
                 goto free;
         llc_station_send_pdu(nskb);
 out:
@@ -689,7 +692,8 @@ int __init llc_station_init(void)
         init_timer(&llc_main_station.ack_timer);
         llc_main_station.ack_timer.data     = (unsigned long)&llc_main_station;
         llc_main_station.ack_timer.function = llc_station_ack_tmr_cb;
-
+        llc_main_station.ack_timer.expires  = jiffies +
+                                                sysctl_llc_station_ack_timeout;
         skb = alloc_skb(0, GFP_ATOMIC);
         if (!skb)
                 goto out;
@@ -697,7 +701,6 @@ int __init llc_station_init(void)
         llc_set_station_handler(llc_station_rcv);
         ev = llc_station_ev(skb);
         memset(ev, 0, sizeof(*ev));
-        llc_main_station.ack_timer.expires = jiffies + 3 * HZ;
         llc_main_station.maximum_retry  = 1;
         llc_main_station.state          = LLC_STATION_STATE_DOWN;
         ev->type        = LLC_STATION_EV_TYPE_SIMPLE;