[LLC] remove all tmr ev structs & fix psnap and p8022 wrt ui sending

. No need for the timer_running member on llc_timer,
  we only need it in one place, and timer_pending is
  equivalent. One more procom OS generalisation killed.
. Move the skb->protocol assignment in llc_build_and_send_pkt
  routines and llc_ui_send_data to the caller, this is the common
  practice in Linux networking code (think netif_rx) and required
  to keep the request functions in psnap and p8022 simple.
. Remove the rpt_status (report status) ev members, not
  used at all, not even in the original procom code.
. Convert psnap and p8022 request functions to use
  llc_ui_build_and_send_ui_pkt, removing all the prim cruft.

include/net/llc_c_ev.h

@@ -122,27 +122,14 @@ struct llc_conn_ev_prim_if {
 
 /* Event LLC_CONN_EV_TYPE_PDU interface */
 struct llc_conn_ev_pdu_if {
-	u8		ev;
-	u8		reason;
-};
-
-/* Event interface for timer-generated events */
-struct llc_conn_ev_tmr_if {
-	struct sock *sk;
-	u32	     component_handle;
-	void	    *timer_specific;
-};
-
-struct llc_conn_ev_rpt_sts_if {
-	u8 status;
+	u8 ev;
+	u8 reason;
 };
 
 union llc_conn_ev_if {
 	struct llc_conn_ev_simple_if  a;	/* 'a' for simple, easy ... */
 	struct llc_conn_ev_prim_if    prim;
 	struct llc_conn_ev_pdu_if     pdu;
-	struct llc_conn_ev_tmr_if     tmr;
-	struct llc_conn_ev_rpt_sts_if rsts;	/* report status */
 };
 
 struct llc_conn_state_ev {

include/net/llc_conn.h

@@ -17,7 +17,6 @@
 
 struct llc_timer {
 	struct timer_list timer;
-	u8		  running;	/* timer is running or no */
 	u16		  expire;	/* timer expire time */
 };
 

include/net/llc_evnt.h

@@ -43,29 +43,18 @@ struct llc_stat_ev_prim_if {
 
 struct llc_stat_ev_pdu_if {
 	u8 reason;
-	struct sk_buff *skb;
-};
-
-struct llc_stat_ev_tmr_if {
-	void *timer_specific;
-};
-
-struct llc_stat_ev_rpt_sts_if {
-	u8 status;
 };
 
 union llc_stat_ev_if {
 	struct llc_stat_ev_simple_if  a;	/* 'a' for simple, easy ... */
 	struct llc_stat_ev_prim_if    prim;
 	struct llc_stat_ev_pdu_if     pdu;
-	struct llc_stat_ev_tmr_if     tmr;
-	struct llc_stat_ev_rpt_sts_if rsts;	/* report status */
 };
 
 struct llc_station_state_ev {
-	u8			type;
+	u8		     type;
 	union llc_stat_ev_if data;
-	struct list_head	node; /* node in station->ev_q.list */
+	struct list_head     node; /* node in station->ev_q.list */
 };
 
 static __inline__ struct llc_station_state_ev *

include/net/llc_if.h

@@ -122,24 +122,12 @@ extern int llc_establish_connection(struct sock *sk, u8 *lmac,
 extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
 extern void llc_build_and_send_ui_pkt(struct llc_sap *sap,
 				      struct sk_buff *skb,
-				      struct sockaddr_llc *addr);
+				      u8 *dmac, u8 dsap);
 extern void llc_build_and_send_xid_pkt(struct llc_sap *sap,
 				       struct sk_buff *skb,
-				       struct sockaddr_llc *addr);
+				       u8 *dmac, u8 dsap);
 extern void llc_build_and_send_test_pkt(struct llc_sap *sap,
 					struct sk_buff *skb,
-					struct sockaddr_llc *addr);
+					u8 *dmac, u8 dsap);
 extern int llc_send_disc(struct sock *sk);
-
-/**
- *	llc_proto_type - return eth protocol for ARP header type
- *	@arphrd: ARP header type.
- *
- *	Given an ARP header type return the corresponding ethernet protocol.
- */
-static __inline__ u16 llc_proto_type(u16 arphrd)
-{
-	return arphrd == ARPHRD_IEEE802_TR ?
-			 htons(ETH_P_TR_802_2) : htons(ETH_P_802_2);
-}
 #endif /* LLC_IF_H */

include/net/llc_main.h

@@ -30,7 +30,6 @@
  *
  * @state - state of station
  * @xid_r_count - XID response PDU counter
- * @ack_tmr_running - 1 or 0
  * @mac_sa - MAC source address
  * @sap_list - list of related SAPs
  * @ev_q - events entering state mach.
@@ -40,7 +39,6 @@ struct llc_station {
 	u8			    state;
 	u8			    xid_r_count;
 	struct timer_list	    ack_timer;
-	u8			    ack_tmr_running;
 	u8			    retry_count;
 	u8			    maximum_retry;
 	u8			    mac_sa[6];

include/net/llc_s_ev.h

@@ -52,20 +52,10 @@ struct llc_sap_ev_pdu_if {
 	u8 reason;
 };
 
-struct llc_sap_ev_tmr_if {
-	void *timer_specific;
-};
-
-struct llc_sap_ev_rpt_sts_if {
-	u8 status;
-};
-
 union llc_sap_ev_if {
 	struct llc_sap_ev_simple_if	a;	/* 'a' for simple, easy ... */
 	struct llc_sap_ev_prim_if	prim;
 	struct llc_sap_ev_pdu_if	pdu;
-	struct llc_sap_ev_tmr_if	tmr;
-	struct llc_sap_ev_rpt_sts_if	rsts;	/* report status */
 };
 
 struct llc_prim_if_block;

include/net/llc_sap.h

@@ -17,7 +17,6 @@
  *
  * @p_bit - only lowest-order bit used
  * @f_bit - only lowest-order bit used
- * @req - provided by LLC layer
  * @ind - provided by network layer
  * @conf - provided by network layer
  * @laddr - SAP value in this 'lsap'
@@ -30,7 +29,6 @@ struct llc_sap {
 	u8			 state;
 	u8			 p_bit;
 	u8			 f_bit;
-	llc_prim_call_t		 req;
 	llc_prim_call_t		 ind;
 	llc_prim_call_t		 conf;
 	struct llc_prim_if_block llc_ind_prim, llc_cfm_prim;

net/802/p8022.c

@@ -28,18 +28,8 @@
 static int p8022_request(struct datalink_proto *dl, struct sk_buff *skb,
 			 unsigned char *dest)
 {
-	union llc_u_prim_data prim_data;
-	struct llc_prim_if_block prim;
-
-	prim.data                 = &prim_data;
-	prim.sap                  = dl->sap;
-	prim.prim                 = LLC_DATAUNIT_PRIM;
-	prim_data.test.skb        = skb;
-	prim_data.test.saddr.lsap = dl->sap->laddr.lsap;
-	prim_data.test.daddr.lsap = dl->sap->laddr.lsap;
-	memcpy(prim_data.test.saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);
-	memcpy(prim_data.test.daddr.mac, dest, IFHWADDRLEN);
-	return dl->sap->req(&prim);
+	llc_build_and_send_ui_pkt(dl->sap, skb, dest, dl->sap->laddr.lsap);
+	return 0;
 }
 
 struct datalink_proto *register_8022_client(unsigned char type,

net/802/psnap.c

@@ -86,19 +86,9 @@ static int snap_indicate(struct llc_prim_if_block *prim)
 static int snap_request(struct datalink_proto *dl,
 			struct sk_buff *skb, u8 *dest)
 {
-	union llc_u_prim_data prim_data;
-	struct llc_prim_if_block prim;
-
 	memcpy(skb_push(skb, 5), dl->type, 5);
-	prim.data                 = &prim_data;
-	prim.sap                  = snap_sap;
-	prim.prim                 = LLC_DATAUNIT_PRIM;
-	prim_data.test.skb        = skb;
-	prim_data.test.saddr.lsap = snap_sap->laddr.lsap;
-	prim_data.test.daddr.lsap = snap_sap->laddr.lsap;
-	memcpy(prim_data.test.saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);
-	memcpy(prim_data.test.daddr.mac, dest, IFHWADDRLEN);
-	return snap_sap->req(&prim);
+	llc_build_and_send_ui_pkt(snap_sap, skb, dest, snap_sap->laddr.lsap);
+	return 0;
 }
 
 /*

net/llc/llc_actn.c

@@ -34,7 +34,6 @@ int llc_station_ac_start_ack_timer(struct llc_station *station,
 	station->ack_timer.data     = (unsigned long)station;
 	station->ack_timer.function = llc_station_ack_tmr_callback;
 	add_timer(&station->ack_timer);
-	station->ack_tmr_running = 1;
 	return 0;
 }
 
@@ -136,12 +135,10 @@ static void llc_station_ack_tmr_callback(unsigned long timeout_data)
 	struct llc_station *station = (struct llc_station *)timeout_data;
 	struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC);
 
-	station->ack_tmr_running = 0;
 	if (skb) {
 		struct llc_station_state_ev *ev = llc_station_ev(skb);
 
 		ev->type = LLC_STATION_EV_TYPE_ACK_TMR;
-		ev->data.tmr.timer_specific = NULL;
 		llc_station_state_process(station, skb);
 	}
 }

net/llc/llc_c_ac.c

@@ -48,7 +48,6 @@ int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb)
 
 		llc->remote_busy_flag = 0;
 		del_timer(&llc->busy_state_timer.timer);
-		llc->busy_state_timer.running = 0;
 		nr = LLC_I_GET_NR(pdu);
 		llc_conn_resend_i_pdu_as_cmd(sk, nr, 0);
 	}
@@ -252,10 +251,8 @@ int llc_conn_ac_stop_rej_tmr_if_data_flag_eq_2(struct sock *sk,
 {
 	struct llc_opt *llc = llc_sk(sk);
 
-	if (llc->data_flag == 2) {
+	if (llc->data_flag == 2)
 		del_timer(&llc->rej_sent_timer.timer);
-		llc->rej_sent_timer.running = 0;
-	}
 	return 0;
 }
 
@@ -672,7 +669,6 @@ int llc_conn_ac_set_remote_busy(struct sock *sk, struct sk_buff *skb)
 		llc->busy_state_timer.timer.data     = (unsigned long)sk;
 		llc->busy_state_timer.timer.function = llc_conn_busy_tmr_cb;
 		add_timer(&llc->busy_state_timer.timer);
-		llc->busy_state_timer.running = 1;
 	}
 	return 0;
 }
@@ -915,7 +911,6 @@ int llc_conn_ac_start_p_timer(struct sock *sk, struct sk_buff *skb)
 	llc->pf_cycle_timer.timer.data     = (unsigned long)sk;
 	llc->pf_cycle_timer.timer.function = llc_conn_pf_cycle_tmr_cb;
 	add_timer(&llc->pf_cycle_timer.timer);
-	llc->pf_cycle_timer.running = 1;
 	return 0;
 }
 
@@ -1162,13 +1157,9 @@ int llc_conn_ac_stop_all_timers(struct sock *sk, struct sk_buff *skb)
 	struct llc_opt *llc = llc_sk(sk);
 
 	del_timer(&llc->pf_cycle_timer.timer);
-	llc->pf_cycle_timer.running = 0;
 	del_timer(&llc->ack_timer.timer);
-	llc->ack_timer.running = 0;
 	del_timer(&llc->rej_sent_timer.timer);
-	llc->rej_sent_timer.running = 0;
 	del_timer(&llc->busy_state_timer.timer);
-	llc->busy_state_timer.running = 0;
 	llc->ack_must_be_send = 0;
 	llc->ack_pf = 0;
 	return 0;
@@ -1179,11 +1170,8 @@ int llc_conn_ac_stop_other_timers(struct sock *sk, struct sk_buff *skb)
 	struct llc_opt *llc = llc_sk(sk);
 
 	del_timer(&llc->rej_sent_timer.timer);
-	llc->rej_sent_timer.running = 0;
 	del_timer(&llc->pf_cycle_timer.timer);
-	llc->pf_cycle_timer.running = 0;
 	del_timer(&llc->busy_state_timer.timer);
-	llc->busy_state_timer.running = 0;
 	llc->ack_must_be_send = 0;
 	llc->ack_pf = 0;
 	return 0;
@@ -1198,7 +1186,6 @@ int llc_conn_ac_start_ack_timer(struct sock *sk, struct sk_buff *skb)
 	llc->ack_timer.timer.data     = (unsigned long)sk;
 	llc->ack_timer.timer.function = llc_conn_ack_tmr_cb;
 	add_timer(&llc->ack_timer.timer);
-	llc->ack_timer.running = 1;
 	return 0;
 }
 
@@ -1212,7 +1199,6 @@ int llc_conn_ac_start_rej_timer(struct sock *sk, struct sk_buff *skb)
 	llc->rej_sent_timer.timer.data     = (unsigned long)sk;
 	llc->rej_sent_timer.timer.function = llc_conn_rej_tmr_cb;
 	add_timer(&llc->rej_sent_timer.timer);
-	llc->rej_sent_timer.running = 1;
 	return 0;
 }
 
@@ -1221,13 +1207,12 @@ int llc_conn_ac_start_ack_tmr_if_not_running(struct sock *sk,
 {
 	struct llc_opt *llc = llc_sk(sk);
 
-	if (!llc->ack_timer.running) {
+	if (!timer_pending(&llc->ack_timer.timer)) {
 		llc->ack_timer.timer.expires  = jiffies +
 						llc->ack_timer.expire * HZ;
 		llc->ack_timer.timer.data     = (unsigned long)sk;
 		llc->ack_timer.timer.function = llc_conn_ack_tmr_cb;
 		add_timer(&llc->ack_timer.timer);
-		llc->ack_timer.running = 1;
 	}
 	return 0;
 }
@@ -1235,7 +1220,6 @@ int llc_conn_ac_start_ack_tmr_if_not_running(struct sock *sk,
 int llc_conn_ac_stop_ack_timer(struct sock *sk, struct sk_buff *skb)
 {
 	del_timer(&llc_sk(sk)->ack_timer.timer);
-	llc_sk(sk)->ack_timer.running = 0;
 	return 0;
 }
 
@@ -1244,7 +1228,6 @@ int llc_conn_ac_stop_p_timer(struct sock *sk, struct sk_buff *skb)
 	struct llc_opt *llc = llc_sk(sk);
 
 	del_timer(&llc->pf_cycle_timer.timer);
-	llc->pf_cycle_timer.running = 0;
 	llc->p_flag = 0;
 	return 0;
 }
@@ -1252,7 +1235,6 @@ int llc_conn_ac_stop_p_timer(struct sock *sk, struct sk_buff *skb)
 int llc_conn_ac_stop_rej_timer(struct sock *sk, struct sk_buff *skb)
 {
 	del_timer(&llc_sk(sk)->rej_sent_timer.timer);
-	llc_sk(sk)->rej_sent_timer.running = 0;
 	return 0;
 }
 
@@ -1270,7 +1252,6 @@ int llc_conn_ac_upd_nr_received(struct sock *sk, struct sk_buff *skb)
 	if (acked > 0 || (llc->dev->flags & IFF_LOOPBACK)) {
 		llc->retry_count = 0;
 		del_timer(&llc->ack_timer.timer);
-		llc->ack_timer.running = 0;
 		if (llc->failed_data_req) {
 			/* already, we did not accept data from upper layer
 			 * (tx_window full or unacceptable state). Now, we
@@ -1285,7 +1266,6 @@ int llc_conn_ac_upd_nr_received(struct sock *sk, struct sk_buff *skb)
 			llc->ack_timer.timer.data     = (unsigned long)sk;
 			llc->ack_timer.timer.function = llc_conn_ack_tmr_cb;
 			add_timer(&llc->ack_timer.timer);
-			llc->ack_timer.running = 1;
 	       }
 	} else if (llc->failed_data_req) {
 		llc_pdu_decode_pf_bit(skb, &fbit);
@@ -1423,13 +1403,11 @@ void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data)
 	struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC);
 
 	bh_lock_sock(sk);
-	llc_sk(sk)->pf_cycle_timer.running = 0;
 	if (skb) {
 		struct llc_conn_state_ev *ev = llc_conn_ev(skb);
 
 		skb->sk  = sk;
 		ev->type = LLC_CONN_EV_TYPE_P_TMR;
-		ev->data.tmr.timer_specific = NULL;
 		llc_process_tmr_ev(sk, skb);
 	}
 	bh_unlock_sock(sk);
@@ -1441,13 +1419,11 @@ static void llc_conn_busy_tmr_cb(unsigned long timeout_data)
 	struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC);
 
 	bh_lock_sock(sk);
-	llc_sk(sk)->busy_state_timer.running = 0;
 	if (skb) {
 		struct llc_conn_state_ev *ev = llc_conn_ev(skb);
 
 		skb->sk  = sk;
 		ev->type = LLC_CONN_EV_TYPE_BUSY_TMR;
-		ev->data.tmr.timer_specific = NULL;
 		llc_process_tmr_ev(sk, skb);
 	}
 	bh_unlock_sock(sk);
@@ -1459,13 +1435,11 @@ void llc_conn_ack_tmr_cb(unsigned long timeout_data)
 	struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC);
 
 	bh_lock_sock(sk);
-	llc_sk(sk)->ack_timer.running = 0;
 	if (skb) {
 		struct llc_conn_state_ev *ev = llc_conn_ev(skb);
 
 		skb->sk  = sk;
 		ev->type = LLC_CONN_EV_TYPE_ACK_TMR;
-		ev->data.tmr.timer_specific = NULL;
 		llc_process_tmr_ev(sk, skb);
 	}
 	bh_unlock_sock(sk);
@@ -1477,13 +1451,11 @@ static void llc_conn_rej_tmr_cb(unsigned long timeout_data)
 	struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC);
 
 	bh_lock_sock(sk);
-	llc_sk(sk)->rej_sent_timer.running = 0;
 	if (skb) {
 		struct llc_conn_state_ev *ev = llc_conn_ev(skb);
 
 		skb->sk  = sk;
 		ev->type = LLC_CONN_EV_TYPE_REJ_TMR;
-		ev->data.tmr.timer_specific = NULL;
 		llc_process_tmr_ev(sk, skb);
 	}
 	bh_unlock_sock(sk);

net/llc/llc_if.c

@@ -86,7 +86,8 @@ void llc_sap_close(struct llc_sap *sap)
  *	llc_build_and_send_ui_pkt - unitdata request interface for upper layers
  *	@sap: sap to use
  *	@skb: packet to send
- *	@addr: destination address
+ *	@dmac: destination mac address
+ *	@dsap: destination sap
  *
  *	Upper layers calls this function when upper layer wants to send data
  *	using connection-less mode communication (UI pdu).
@@ -95,25 +96,22 @@ void llc_sap_close(struct llc_sap *sap)
  *	less mode communication; timeout/retries handled by network layer;
  *	package primitive as an event and send to SAP event handler
  */
-void llc_build_and_send_ui_pkt(struct llc_sap *sap,
-			       struct sk_buff *skb,
-			       struct sockaddr_llc *addr)
+void llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb,
+			       u8 *dmac, u8 dsap)
 {
 	union llc_u_prim_data prim_data;
 	struct llc_prim_if_block prim;
 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);
 
-	skb->protocol = llc_proto_type(addr->sllc_arphrd);
-
 	prim.data = &prim_data;
 	prim.sap  = sap;
 	prim.prim = LLC_DATAUNIT_PRIM;
 
 	prim_data.udata.skb        = skb;
 	prim_data.udata.saddr.lsap = sap->laddr.lsap;
-	prim_data.udata.daddr.lsap = addr->sllc_dsap;
+	prim_data.udata.daddr.lsap = dsap;
 	memcpy(prim_data.udata.saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);
-	memcpy(prim_data.udata.daddr.mac, addr->sllc_dmac, IFHWADDRLEN);
+	memcpy(prim_data.udata.daddr.mac, dmac, IFHWADDRLEN);
 
 	ev->type	   = LLC_SAP_EV_TYPE_PRIM;
 	ev->data.prim.prim = LLC_DATAUNIT_PRIM;
@@ -126,30 +124,28 @@ void llc_build_and_send_ui_pkt(struct llc_sap *sap,
  *	llc_build_and_send_test_pkt - TEST interface for upper layers.
  *	@sap: sap to use
  *	@skb: packet to send
- *	@addr: destination address
+ *	@dmac: destination mac address
+ *	@dsap: destination sap
  *
  *	This function is called when upper layer wants to send a TEST pdu.
  *	Returns 0 for success, 1 otherwise.
  */
-void llc_build_and_send_test_pkt(struct llc_sap *sap,
-				 struct sk_buff *skb,
-				 struct sockaddr_llc *addr)
+void llc_build_and_send_test_pkt(struct llc_sap *sap, struct sk_buff *skb,
+				 u8 *dmac, u8 dsap)
 {
 	union llc_u_prim_data prim_data;
 	struct llc_prim_if_block prim;
 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);
 
-	skb->protocol = llc_proto_type(addr->sllc_arphrd);
-
 	prim.data = &prim_data;
 	prim.sap  = sap;
 	prim.prim = LLC_TEST_PRIM;
 
 	prim_data.test.skb        = skb;
 	prim_data.test.saddr.lsap = sap->laddr.lsap;
-	prim_data.test.daddr.lsap = addr->sllc_dsap;
+	prim_data.test.daddr.lsap = dsap;
 	memcpy(prim_data.test.saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);
-	memcpy(prim_data.test.daddr.mac, addr->sllc_dmac, IFHWADDRLEN);
+	memcpy(prim_data.test.daddr.mac, dmac, IFHWADDRLEN);
 	
 	ev->type	   = LLC_SAP_EV_TYPE_PRIM;
 	ev->data.prim.prim = LLC_TEST_PRIM;
@@ -162,30 +158,28 @@ void llc_build_and_send_test_pkt(struct llc_sap *sap,
  *	llc_build_and_send_xid_pkt - XID interface for upper layers
  *	@sap: sap to use
  *	@skb: packet to send
- *	@addr: destination address
+ *	@dmac: destination mac address
+ *	@dsap: destination sap
  *
  *	This function is called when upper layer wants to send a XID pdu.
  *	Returns 0 for success, 1 otherwise.
  */
-void llc_build_and_send_xid_pkt(struct llc_sap *sap,
-				struct sk_buff *skb,
-				struct sockaddr_llc *addr)
+void llc_build_and_send_xid_pkt(struct llc_sap *sap, struct sk_buff *skb,
+				u8 *dmac, u8 dsap)
 {
 	union llc_u_prim_data prim_data;
 	struct llc_prim_if_block prim;
 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);
 
-	skb->protocol = llc_proto_type(addr->sllc_arphrd);
-
 	prim.data = &prim_data;
 	prim.sap  = sap;
 	prim.prim = LLC_XID_PRIM;
 
 	prim_data.xid.skb        = skb;
 	prim_data.xid.saddr.lsap = sap->laddr.lsap;
-	prim_data.xid.daddr.lsap = addr->sllc_dsap;
+	prim_data.xid.daddr.lsap = dsap;
 	memcpy(prim_data.xid.saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);
-	memcpy(prim_data.xid.daddr.mac, addr->sllc_dmac, IFHWADDRLEN);
+	memcpy(prim_data.xid.daddr.mac, dmac, IFHWADDRLEN);
 
 	ev->type	   = LLC_SAP_EV_TYPE_PRIM;
 	ev->data.prim.prim = LLC_XID_PRIM;
@@ -196,7 +190,8 @@ void llc_build_and_send_xid_pkt(struct llc_sap *sap,
 
 /**
  *	llc_build_and_send_pkt - Connection data sending for upper layers.
- *	@prim: pointer to structure that contains service parameters
+ *	@sk: connection
+ *	@skb: packet to send
  *
  *	This function is called when upper layer wants to send data using
  *	connection oriented communication mode. During sending data, connection
@@ -352,3 +347,4 @@ int llc_build_and_send_reset_pkt(struct sock *sk,
 
 EXPORT_SYMBOL(llc_sap_open);
 EXPORT_SYMBOL(llc_sap_close);
+EXPORT_SYMBOL(llc_build_and_send_ui_pkt);

net/llc/llc_sap.c

@@ -78,9 +78,6 @@ void llc_sap_state_process(struct llc_sap *sap, struct sk_buff *skb)
 		sap->ind(ev->prim);
 	else if (ev->type == LLC_SAP_EV_TYPE_PDU)
 		kfree_skb(skb);
-	else
-		printk(KERN_INFO ":%s !kfree_skb & it is %s in a list\n",
-			__FUNCTION__, skb->list ? "" : "NOT");
 }
 
 /**

net/llc/llc_sock.c

@@ -77,6 +77,18 @@ static __inline__ u16 llc_ui_next_link_no(int sap)
 	return llc_ui_sap_link_no_max[sap]++;
 }
 
+/**
+ *	llc_proto_type - return eth protocol for ARP header type
+ *	@arphrd: ARP header type.
+ *
+ *	Given an ARP header type return the corresponding ethernet protocol.
+ */
+static __inline__ u16 llc_proto_type(u16 arphrd)
+{
+	return arphrd == ARPHRD_IEEE802_TR ?
+		         htons(ETH_P_TR_802_2) : htons(ETH_P_802_2);
+}
+
 /**
  *	llc_ui_addr_null - determines if a address structure is null
  *	@addr: Address to test if null.
@@ -117,13 +129,11 @@ static __inline__ u8 llc_ui_header_len(struct sock *sk,
  *	Send data via reliable llc2 connection.
  *	Returns 0 upon success, non-zero if action did not succeed.
  */
-static int llc_ui_send_data(struct sock* sk, struct sk_buff *skb,
-			    struct sockaddr_llc *addr, int noblock)
+static int llc_ui_send_data(struct sock* sk, struct sk_buff *skb, int noblock)
 {
 	struct llc_opt* llc = llc_sk(sk);
 	int rc = 0;
 
-	skb->protocol = llc_proto_type(addr->sllc_arphrd);
 	if (llc_data_accept_state(llc->state) || llc->p_flag) {
 		int timeout = sock_sndtimeo(sk, noblock);
 
@@ -940,28 +950,32 @@ static int llc_ui_sendmsg(struct socket *sock, struct msghdr *msg, int len,
 	skb = sock_alloc_send_skb(sk, size, noblock, &rc);
 	if (!skb)
 		goto release;
-	skb->sk  = sk;
-	skb->dev = dev;
+	skb->sk	      = sk;
+	skb->dev      = dev;
+	skb->protocol = llc_proto_type(addr->sllc_arphrd);
 	skb_reserve(skb, dev->hard_header_len + llc_ui_header_len(sk, addr));
 	rc = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len);
 	if (rc)
 		goto out;
 	if (addr->sllc_test) {
-		llc_build_and_send_test_pkt(llc->sap, skb, addr);
+		llc_build_and_send_test_pkt(llc->sap, skb, addr->sllc_dmac,
+					    addr->sllc_dsap);
 		goto out;
 	}
 	if (addr->sllc_xid) {
-		llc_build_and_send_xid_pkt(llc->sap, skb, addr);
+		llc_build_and_send_xid_pkt(llc->sap, skb, addr->sllc_dmac,
+					   addr->sllc_dsap);
 		goto out;
 	}
 	if (sk->type == SOCK_DGRAM || addr->sllc_ua) {
-		llc_build_and_send_ui_pkt(llc->sap, skb, addr);
+		llc_build_and_send_ui_pkt(llc->sap, skb, addr->sllc_dmac,
+					  addr->sllc_dsap);
 		goto out;
 	}
 	rc = -ENOPROTOOPT;
 	if (!(sk->type == SOCK_STREAM && !addr->sllc_ua))
 		goto out;
-	rc = llc_ui_send_data(sk, skb, addr, noblock);
+	rc = llc_ui_send_data(sk, skb, noblock);
 	if (rc)
 		dprintk("%s: llc_ui_send_data failed: %d\n", __FUNCTION__, rc);
 out: