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lapb: Neaten debugging 

Enable dynamic debugging and remove a bunch of #ifdef/#endifs.

Add a lapb_dbg(level, fmt, ...) macro and replace the
printk(KERN_DEBUG uses.
Add pr_fmt and remove embedded prefixes.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joe Perches 2012-05-17 10:25:49 +00:00 committed by David S. Miller
parent a5e371f61a
commit a508da6cc0
6 changed files with 140 additions and 306 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/net/lapb.h
View File

@ -149,4 +149,10 @@ extern int lapb_t1timer_running(struct lapb_cb *lapb);
*/
#define LAPB_DEBUG 0
#define lapb_dbg(level, fmt, ...) \
do { \
if (level < LAPB_DEBUG) \
pr_debug(fmt, ##__VA_ARGS__); \
} while (0)
#endif

22
net/lapb/lapb_iface.c
View File

@ -15,6 +15,8 @@
* 2000-10-29 Henner Eisen lapb_data_indication() return status.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/types.h>
@ -279,9 +281,7 @@ int lapb_connect_request(struct net_device *dev)
lapb_establish_data_link(lapb);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S0 -> S1\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S0 -> S1\n", lapb->dev);
lapb->state = LAPB_STATE_1;
rc = LAPB_OK;
@ -305,12 +305,8 @@ int lapb_disconnect_request(struct net_device *dev)
goto out_put;
case LAPB_STATE_1:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 TX DISC(1)\n", lapb->dev);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S1 -> S0\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S1 TX DISC(1)\n", lapb->dev);
lapb_dbg(0, "(%p) S1 -> S0\n", lapb->dev);
lapb_send_control(lapb, LAPB_DISC, LAPB_POLLON, LAPB_COMMAND);
lapb->state = LAPB_STATE_0;
lapb_start_t1timer(lapb);
@ -329,12 +325,8 @@ int lapb_disconnect_request(struct net_device *dev)
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_2;
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 DISC(1)\n", lapb->dev);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S2\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S3 DISC(1)\n", lapb->dev);
lapb_dbg(0, "(%p) S3 -> S2\n", lapb->dev);
rc = LAPB_OK;
out_put:

320
net/lapb/lapb_in.c
View File

@ -15,6 +15,8 @@
* 2000-10-29 Henner Eisen lapb_data_indication() return status.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
@ -44,25 +46,16 @@ static void lapb_state0_machine(struct lapb_cb *lapb, struct sk_buff *skb,
{
switch (frame->type) {
case LAPB_SABM:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 RX SABM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S0 RX SABM(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S0 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S0 -> S3\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S0 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_dbg(0, "(%p) S0 -> S3\n", lapb->dev);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
@ -78,18 +71,11 @@ static void lapb_state0_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_SABME:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 RX SABME(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S0 RX SABME(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S0 -> S3\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S0 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_dbg(0, "(%p) S0 -> S3\n", lapb->dev);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
@ -102,22 +88,16 @@ static void lapb_state0_machine(struct lapb_cb *lapb, struct sk_buff *skb,
lapb->va = 0;
lapb_connect_indication(lapb, LAPB_OK);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S0 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
}
break;
case LAPB_DISC:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 RX DISC(%d)\n",
lapb->dev, frame->pf);
printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S0 RX DISC(%d)\n", lapb->dev, frame->pf);
lapb_dbg(1, "(%p) S0 TX UA(%d)\n", lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_UA, frame->pf, LAPB_RESPONSE);
break;
@ -137,68 +117,45 @@ static void lapb_state1_machine(struct lapb_cb *lapb, struct sk_buff *skb,
{
switch (frame->type) {
case LAPB_SABM:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 RX SABM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 RX SABM(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
}
break;
case LAPB_SABME:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 RX SABME(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 RX SABME(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
}
break;
case LAPB_DISC:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 RX DISC(%d)\n",
lapb->dev, frame->pf);
printk(KERN_DEBUG "lapb: (%p) S1 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 RX DISC(%d)\n", lapb->dev, frame->pf);
lapb_dbg(1, "(%p) S1 TX DM(%d)\n", lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf, LAPB_RESPONSE);
break;
case LAPB_UA:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 RX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 RX UA(%d)\n", lapb->dev, frame->pf);
if (frame->pf) {
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S1 -> S3\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S1 -> S3\n", lapb->dev);
lapb_stop_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_3;
@ -212,14 +169,9 @@ static void lapb_state1_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_DM:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 RX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S1 RX DM(%d)\n", lapb->dev, frame->pf);
if (frame->pf) {
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S1 -> S0\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S1 -> S0\n", lapb->dev);
lapb_clear_queues(lapb);
lapb->state = LAPB_STATE_0;
lapb_start_t1timer(lapb);
@ -242,34 +194,22 @@ static void lapb_state2_machine(struct lapb_cb *lapb, struct sk_buff *skb,
switch (frame->type) {
case LAPB_SABM:
case LAPB_SABME:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S2 RX {SABM,SABME}(%d)\n",
lapb->dev, frame->pf);
printk(KERN_DEBUG "lapb: (%p) S2 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S2 RX {SABM,SABME}(%d)\n",
lapb->dev, frame->pf);
lapb_dbg(1, "(%p) S2 TX DM(%d)\n", lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf, LAPB_RESPONSE);
break;
case LAPB_DISC:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S2 RX DISC(%d)\n",
lapb->dev, frame->pf);
printk(KERN_DEBUG "lapb: (%p) S2 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S2 RX DISC(%d)\n", lapb->dev, frame->pf);
lapb_dbg(1, "(%p) S2 TX UA(%d)\n", lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_UA, frame->pf, LAPB_RESPONSE);
break;
case LAPB_UA:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S2 RX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S2 RX UA(%d)\n", lapb->dev, frame->pf);
if (frame->pf) {
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S2 -> S0\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S2 -> S0\n", lapb->dev);
lapb->state = LAPB_STATE_0;
lapb_start_t1timer(lapb);
lapb_stop_t2timer(lapb);
@ -278,14 +218,9 @@ static void lapb_state2_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_DM:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S2 RX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S2 RX DM(%d)\n", lapb->dev, frame->pf);
if (frame->pf) {
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S2 -> S0\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S2 -> S0\n", lapb->dev);
lapb->state = LAPB_STATE_0;
lapb_start_t1timer(lapb);
lapb_stop_t2timer(lapb);
@ -297,12 +232,9 @@ static void lapb_state2_machine(struct lapb_cb *lapb, struct sk_buff *skb,
case LAPB_REJ:
case LAPB_RNR:
case LAPB_RR:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S2 RX {I,REJ,RNR,RR}(%d)\n",
lapb_dbg(1, "(%p) S2 RX {I,REJ,RNR,RR}(%d)\n",
lapb->dev, frame->pf);
printk(KERN_DEBUG "lapb: (%p) S2 RX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S2 RX DM(%d)\n", lapb->dev, frame->pf);
if (frame->pf)
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
@ -325,22 +257,15 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
switch (frame->type) {
case LAPB_SABM:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX SABM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S3 RX SABM(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S3 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S3 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
@ -355,15 +280,10 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_SABME:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX SABME(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S3 RX SABME(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S3 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
@ -375,23 +295,16 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
lapb->va = 0;
lapb_requeue_frames(lapb);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S3 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
}
break;
case LAPB_DISC:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX DISC(%d)\n",
lapb->dev, frame->pf);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S0\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S3 RX DISC(%d)\n", lapb->dev, frame->pf);
lapb_dbg(0, "(%p) S3 -> S0\n", lapb->dev);
lapb_clear_queues(lapb);
lapb_send_control(lapb, LAPB_UA, frame->pf, LAPB_RESPONSE);
lapb_start_t1timer(lapb);
@ -401,13 +314,8 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_DM:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX DM(%d)\n",
lapb->dev, frame->pf);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S0\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S3 RX DM(%d)\n", lapb->dev, frame->pf);
lapb_dbg(0, "(%p) S3 -> S0\n", lapb->dev);
lapb_clear_queues(lapb);
lapb->state = LAPB_STATE_0;
lapb_start_t1timer(lapb);
@ -416,10 +324,8 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_RNR:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX RNR(%d) R%d\n",
lapb->dev, frame->pf, frame->nr);
#endif
lapb_dbg(1, "(%p) S3 RX RNR(%d) R%d\n",
lapb->dev, frame->pf, frame->nr);
lapb->condition |= LAPB_PEER_RX_BUSY_CONDITION;
lapb_check_need_response(lapb, frame->cr, frame->pf);
if (lapb_validate_nr(lapb, frame->nr)) {
@ -428,9 +334,7 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
lapb->frmr_data = *frame;
lapb->frmr_type = LAPB_FRMR_Z;
lapb_transmit_frmr(lapb);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S3 -> S4\n", lapb->dev);
lapb_start_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_4;
@ -439,10 +343,8 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_RR:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX RR(%d) R%d\n",
lapb->dev, frame->pf, frame->nr);
#endif
lapb_dbg(1, "(%p) S3 RX RR(%d) R%d\n",
lapb->dev, frame->pf, frame->nr);
lapb->condition &= ~LAPB_PEER_RX_BUSY_CONDITION;
lapb_check_need_response(lapb, frame->cr, frame->pf);
if (lapb_validate_nr(lapb, frame->nr)) {
@ -451,9 +353,7 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
lapb->frmr_data = *frame;
lapb->frmr_type = LAPB_FRMR_Z;
lapb_transmit_frmr(lapb);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S3 -> S4\n", lapb->dev);
lapb_start_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_4;
@ -462,10 +362,8 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_REJ:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX REJ(%d) R%d\n",
lapb->dev, frame->pf, frame->nr);
#endif
lapb_dbg(1, "(%p) S3 RX REJ(%d) R%d\n",
lapb->dev, frame->pf, frame->nr);
lapb->condition &= ~LAPB_PEER_RX_BUSY_CONDITION;
lapb_check_need_response(lapb, frame->cr, frame->pf);
if (lapb_validate_nr(lapb, frame->nr)) {
@ -477,9 +375,7 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
lapb->frmr_data = *frame;
lapb->frmr_type = LAPB_FRMR_Z;
lapb_transmit_frmr(lapb);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S3 -> S4\n", lapb->dev);
lapb_start_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_4;
@ -488,17 +384,13 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_I:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX I(%d) S%d R%d\n",
lapb->dev, frame->pf, frame->ns, frame->nr);
#endif
lapb_dbg(1, "(%p) S3 RX I(%d) S%d R%d\n",
lapb->dev, frame->pf, frame->ns, frame->nr);
if (!lapb_validate_nr(lapb, frame->nr)) {
lapb->frmr_data = *frame;
lapb->frmr_type = LAPB_FRMR_Z;
lapb_transmit_frmr(lapb);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S3 -> S4\n", lapb->dev);
lapb_start_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_4;
@ -522,7 +414,7 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
* a frame lost on the wire.
*/
if (cn == NET_RX_DROP) {
printk(KERN_DEBUG "LAPB: rx congestion\n");
pr_debug("rx congestion\n");
break;
}
lapb->vr = (lapb->vr + 1) % modulus;
@ -541,11 +433,8 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
if (frame->pf)
lapb_enquiry_response(lapb);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG
"lapb: (%p) S3 TX REJ(%d) R%d\n",
lapb->dev, frame->pf, lapb->vr);
#endif
lapb_dbg(1, "(%p) S3 TX REJ(%d) R%d\n",
lapb->dev, frame->pf, lapb->vr);
lapb->condition |= LAPB_REJECT_CONDITION;
lapb_send_control(lapb, LAPB_REJ, frame->pf,
LAPB_RESPONSE);
@ -555,31 +444,22 @@ static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_FRMR:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX FRMR(%d) %02X "
"%02X %02X %02X %02X\n", lapb->dev, frame->pf,
skb->data[0], skb->data[1], skb->data[2],
skb->data[3], skb->data[4]);
#endif
lapb_dbg(1, "(%p) S3 RX FRMR(%d) %02X %02X %02X %02X %02X\n",
lapb->dev, frame->pf,
skb->data[0], skb->data[1], skb->data[2],
skb->data[3], skb->data[4]);
lapb_establish_data_link(lapb);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S1\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S3 -> S1\n", lapb->dev);
lapb_requeue_frames(lapb);
lapb->state = LAPB_STATE_1;
break;
case LAPB_ILLEGAL:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S3 RX ILLEGAL(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S3 RX ILLEGAL(%d)\n", lapb->dev, frame->pf);
lapb->frmr_data = *frame;
lapb->frmr_type = LAPB_FRMR_W;
lapb_transmit_frmr(lapb);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S3 -> S4\n", lapb->dev);
lapb_start_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_4;
@ -600,25 +480,16 @@ static void lapb_state4_machine(struct lapb_cb *lapb, struct sk_buff *skb,
{
switch (frame->type) {
case LAPB_SABM:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S4 RX SABM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S4 RX SABM(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S4 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S4 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S4 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S4 -> S3\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S4 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_dbg(0, "(%p) S4 -> S3\n", lapb->dev);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
@ -634,18 +505,11 @@ static void lapb_state4_machine(struct lapb_cb *lapb, struct sk_buff *skb,
break;
case LAPB_SABME:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S4 RX SABME(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S4 RX SABME(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S4 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S4 -> S3\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S4 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_dbg(0, "(%p) S4 -> S3\n", lapb->dev);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
@ -658,10 +522,8 @@ static void lapb_state4_machine(struct lapb_cb *lapb, struct sk_buff *skb,
lapb->va = 0;
lapb_connect_indication(lapb, LAPB_OK);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S4 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_dbg(1, "(%p) S4 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
}

38
net/lapb/lapb_out.c
View File

@ -14,6 +14,8 @@
* LAPB 002 Jonathan Naylor New timer architecture.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
@ -60,10 +62,8 @@ static void lapb_send_iframe(struct lapb_cb *lapb, struct sk_buff *skb, int poll
*frame |= lapb->vs << 1;
}
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S%d TX I(%d) S%d R%d\n",
lapb->dev, lapb->state, poll_bit, lapb->vs, lapb->vr);
#endif
lapb_dbg(1, "(%p) S%d TX I(%d) S%d R%d\n",
lapb->dev, lapb->state, poll_bit, lapb->vs, lapb->vr);
lapb_transmit_buffer(lapb, skb, LAPB_COMMAND);
}
@ -148,11 +148,9 @@ void lapb_transmit_buffer(struct lapb_cb *lapb, struct sk_buff *skb, int type)
}
}
#if LAPB_DEBUG > 2
printk(KERN_DEBUG "lapb: (%p) S%d TX %02X %02X %02X\n",
lapb->dev, lapb->state,
skb->data[0], skb->data[1], skb->data[2]);
#endif
lapb_dbg(2, "(%p) S%d TX %02X %02X %02X\n",
lapb->dev, lapb->state,
skb->data[0], skb->data[1], skb->data[2]);
if (!lapb_data_transmit(lapb, skb))
kfree_skb(skb);
@ -164,16 +162,10 @@ void lapb_establish_data_link(struct lapb_cb *lapb)
lapb->n2count = 0;
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S%d TX SABME(1)\n",
lapb->dev, lapb->state);
#endif
lapb_dbg(1, "(%p) S%d TX SABME(1)\n", lapb->dev, lapb->state);
lapb_send_control(lapb, LAPB_SABME, LAPB_POLLON, LAPB_COMMAND);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S%d TX SABM(1)\n",
lapb->dev, lapb->state);
#endif
lapb_dbg(1, "(%p) S%d TX SABM(1)\n", lapb->dev, lapb->state);
lapb_send_control(lapb, LAPB_SABM, LAPB_POLLON, LAPB_COMMAND);
}
@ -183,10 +175,8 @@ void lapb_establish_data_link(struct lapb_cb *lapb)
void lapb_enquiry_response(struct lapb_cb *lapb)
{
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S%d TX RR(1) R%d\n",
lapb->dev, lapb->state, lapb->vr);
#endif
lapb_dbg(1, "(%p) S%d TX RR(1) R%d\n",
lapb->dev, lapb->state, lapb->vr);
lapb_send_control(lapb, LAPB_RR, LAPB_POLLON, LAPB_RESPONSE);
@ -195,10 +185,8 @@ void lapb_enquiry_response(struct lapb_cb *lapb)
void lapb_timeout_response(struct lapb_cb *lapb)
{
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S%d TX RR(0) R%d\n",
lapb->dev, lapb->state, lapb->vr);
#endif
lapb_dbg(1, "(%p) S%d TX RR(0) R%d\n",
lapb->dev, lapb->state, lapb->vr);
lapb_send_control(lapb, LAPB_RR, LAPB_POLLOFF, LAPB_RESPONSE);
lapb->condition &= ~LAPB_ACK_PENDING_CONDITION;

28
net/lapb/lapb_subr.c
View File

@ -13,6 +13,8 @@
* LAPB 001 Jonathan Naylor Started Coding
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
@ -111,11 +113,9 @@ int lapb_decode(struct lapb_cb *lapb, struct sk_buff *skb,
{
frame->type = LAPB_ILLEGAL;
#if LAPB_DEBUG > 2
printk(KERN_DEBUG "lapb: (%p) S%d RX %02X %02X %02X\n",
lapb->dev, lapb->state,
skb->data[0], skb->data[1], skb->data[2]);
#endif
lapb_dbg(2, "(%p) S%d RX %02X %02X %02X\n",
lapb->dev, lapb->state,
skb->data[0], skb->data[1], skb->data[2]);
/* We always need to look at 2 bytes, sometimes we need
* to look at 3 and those cases are handled below.
@ -284,12 +284,10 @@ void lapb_transmit_frmr(struct lapb_cb *lapb)
dptr++;
*dptr++ = lapb->frmr_type;
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S%d TX FRMR %02X %02X %02X %02X %02X\n",
lapb->dev, lapb->state,
skb->data[1], skb->data[2], skb->data[3],
skb->data[4], skb->data[5]);
#endif
lapb_dbg(1, "(%p) S%d TX FRMR %02X %02X %02X %02X %02X\n",
lapb->dev, lapb->state,
skb->data[1], skb->data[2], skb->data[3],
skb->data[4], skb->data[5]);
} else {
dptr = skb_put(skb, 4);
*dptr++ = LAPB_FRMR;
@ -301,11 +299,9 @@ void lapb_transmit_frmr(struct lapb_cb *lapb)
dptr++;
*dptr++ = lapb->frmr_type;
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S%d TX FRMR %02X %02X %02X\n",
lapb->dev, lapb->state, skb->data[1],
skb->data[2], skb->data[3]);
#endif
lapb_dbg(1, "(%p) S%d TX FRMR %02X %02X %02X\n",
lapb->dev, lapb->state, skb->data[1],
skb->data[2], skb->data[3]);
}
lapb_transmit_buffer(lapb, skb, LAPB_RESPONSE);

32
net/lapb/lapb_timer.c
View File

@ -14,6 +14,8 @@
* LAPB 002 Jonathan Naylor New timer architecture.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
@ -105,21 +107,17 @@ static void lapb_t1timer_expiry(unsigned long param)
lapb_clear_queues(lapb);
lapb->state = LAPB_STATE_0;
lapb_disconnect_indication(lapb, LAPB_TIMEDOUT);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S1 -> S0\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S1 -> S0\n", lapb->dev);
return;
} else {
lapb->n2count++;
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 TX SABME(1)\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S1 TX SABME(1)\n",
lapb->dev);
lapb_send_control(lapb, LAPB_SABME, LAPB_POLLON, LAPB_COMMAND);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S1 TX SABM(1)\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S1 TX SABM(1)\n",
lapb->dev);
lapb_send_control(lapb, LAPB_SABM, LAPB_POLLON, LAPB_COMMAND);
}
}
@ -133,15 +131,11 @@ static void lapb_t1timer_expiry(unsigned long param)
lapb_clear_queues(lapb);
lapb->state = LAPB_STATE_0;
lapb_disconnect_confirmation(lapb, LAPB_TIMEDOUT);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S2 -> S0\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S2 -> S0\n", lapb->dev);
return;
} else {
lapb->n2count++;
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S2 TX DISC(1)\n", lapb->dev);
#endif
lapb_dbg(1, "(%p) S2 TX DISC(1)\n", lapb->dev);
lapb_send_control(lapb, LAPB_DISC, LAPB_POLLON, LAPB_COMMAND);
}
break;
@ -155,9 +149,7 @@ static void lapb_t1timer_expiry(unsigned long param)
lapb->state = LAPB_STATE_0;
lapb_stop_t2timer(lapb);
lapb_disconnect_indication(lapb, LAPB_TIMEDOUT);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S3 -> S0\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S3 -> S0\n", lapb->dev);
return;
} else {
lapb->n2count++;
@ -173,9 +165,7 @@ static void lapb_t1timer_expiry(unsigned long param)
lapb_clear_queues(lapb);
lapb->state = LAPB_STATE_0;
lapb_disconnect_indication(lapb, LAPB_TIMEDOUT);
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S4 -> S0\n", lapb->dev);
#endif
lapb_dbg(0, "(%p) S4 -> S0\n", lapb->dev);
return;
} else {
lapb->n2count++;