dahdi: Clean up an unused waitqueue

The dahdi_span->maintq wait queue was very old and not being used so it
has been removed.

Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Acked-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom..com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9514 a0bf4364-ded3-4de4-8d8a-66a801d63aff

drivers/dahdi/dahdi-base.c

@@ -4675,9 +4675,6 @@ static int dahdi_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long da
 			spin_unlock_irqrestore(&s->lock, flags);
 			if (rv)
 				return rv;
-			interruptible_sleep_on(&s->maintq);
-			if (signal_pending(current))
-				return -ERESTARTSYS;
 			spin_lock_irqsave(&s->lock, flags);
 			break;
 		case DAHDI_MAINT_FAS_DEFECT:
@@ -8461,7 +8458,6 @@ int dahdi_transmit(struct dahdi_span *span)
 			if (span->ops->maint)
 				span->ops->maint(span, DAHDI_MAINT_LOOPSTOP);
 			span->maintstat = 0;
-			wake_up_interruptible(&span->maintq);
 		}
 	}
 	return 0;

drivers/dahdi/dahdi_dummy.c

@@ -216,7 +216,6 @@ static int dahdi_dummy_initialize(struct dahdi_dummy *ztd)
 	ztd->span.chans = &ztd->chan;
 	ztd->span.channels = 0;		/* no channels on our span */
 	ztd->span.deflaw = DAHDI_LAW_MULAW;
-	init_waitqueue_head(&ztd->span.maintq);
 	ztd->chan->pvt = ztd;
 	ztd->span.ops = &dummy_ops;
 	if (dahdi_register(&ztd->span, 0)) {

drivers/dahdi/pciradio.c

@@ -1488,7 +1488,6 @@ static int pciradio_initialize(struct pciradio *rad)
 	rad->span.channels = rad->nchans;
 	rad->span.flags = DAHDI_FLAG_RBS;
 	rad->span.ops = &pciradio_span_ops;
-	init_waitqueue_head(&rad->span.maintq);
 
 	if (dahdi_register(&rad->span, 0)) {
 		printk(KERN_NOTICE "Unable to register span with DAHDI\n");

drivers/dahdi/tor2.c

@@ -304,7 +304,6 @@ static void init_spans(struct tor2 *tor)
 
 		tor->tspans[x].tor = tor;
 		tor->tspans[x].span = x;
-		init_waitqueue_head(&s->maintq);
 		for (y = 0; y < s->channels; y++) {
 			struct dahdi_chan *mychans = tor->chans[x][y];
 			sprintf(mychans->name, "Tor2/%d/%d/%d", tor->num, x + 1, y + 1);

drivers/dahdi/wcb4xxp/base.c

@@ -2415,7 +2415,6 @@ static void init_spans(struct b4xxp *b4)
 		bspan->sigactive = 0;
 
 		bspan->span.chans = bspan->chans;
-		init_waitqueue_head(&bspan->span.maintq);
 
 /* now initialize each channel in the span */
 		for (j=0; j < WCB4XXP_CHANNELS_PER_SPAN; j++) {

drivers/dahdi/wcfxo.c

@@ -666,7 +666,6 @@ static int wcfxo_initialize(struct wcfxo *wc)
 #ifdef ENABLE_TASKLETS
 	tasklet_init(&wc->wcfxo_tlet, wcfxo_tasklet, (unsigned long)wc);
 #endif
-	init_waitqueue_head(&wc->span.maintq);
 
 	wc->chan->pvt = wc;
 	wc->span.ops = &wcfxo_span_ops;

drivers/dahdi/wct1xxp.c

@@ -792,7 +792,6 @@ static int t1xxp_software_init(struct t1xxp *wc)
 		wc->span.linecompat = DAHDI_CONFIG_AMI | DAHDI_CONFIG_B8ZS | DAHDI_CONFIG_D4 | DAHDI_CONFIG_ESF;
 		wc->span.spantype = "T1";
 	}
-	init_waitqueue_head(&wc->span.maintq);
 	for (x=0;x<wc->span.channels;x++) {
 		sprintf(wc->chans[x]->name, "WCT1/%d/%d", wc->num, x + 1);
 		wc->chans[x]->sigcap = DAHDI_SIG_EM | DAHDI_SIG_CLEAR | DAHDI_SIG_EM_E1 | 

drivers/dahdi/wct4xxp/base.c

@@ -2129,7 +2129,6 @@ static void init_spans(struct t4 *wc)
 		ts->span.offset = x;
 		ts->writechunk = (void *)(wc->writechunk + x * 32 * 2);
 		ts->readchunk = (void *)(wc->readchunk + x * 32 * 2);
-		init_waitqueue_head(&ts->span.maintq);
 
 		if (gen2) {
 			ts->span.ops = &t4_gen2_span_ops;

drivers/dahdi/wctdm.c

@@ -2389,7 +2389,6 @@ static int wctdm_initialize(struct wctdm *wc)
 	wc->span.channels = NUM_CARDS;
 	wc->span.irq = wc->dev->irq;
 	wc->span.flags = DAHDI_FLAG_RBS;
-	init_waitqueue_head(&wc->span.maintq);
 	wc->span.ops = &wctdm_span_ops;
 
 	if (dahdi_register(&wc->span, 0)) {

drivers/dahdi/wctdm24xxp/base.c

@@ -3828,7 +3828,6 @@ static struct wctdm_span *wctdm_init_span(struct wctdm *wc, int spanno, int chan
 		wc->chans[chanoffset + 2]->chan.sigcap = DAHDI_SIG_HARDHDLC;
 	}
 
-	init_waitqueue_head(&s->span.maintq);
 	wc->spans[spanno] = s;
 	return s;
 }

drivers/dahdi/wcte11xp.c

@@ -1004,7 +1004,6 @@ static int t1xxp_software_init(struct t1 *wc)
 	}
 	wc->span.chans = wc->chans;
 	wc->span.flags = DAHDI_FLAG_RBS;
-	init_waitqueue_head(&wc->span.maintq);
 	for (x=0;x<wc->span.channels;x++) {
 		sprintf(wc->chans[x]->name, "WCT1/%d/%d", wc->num, x + 1);
 		wc->chans[x]->sigcap = DAHDI_SIG_EM | DAHDI_SIG_CLEAR | DAHDI_SIG_EM_E1 | 

drivers/dahdi/wcte12xp/base.c

@@ -1592,7 +1592,6 @@ static int t1_software_init(struct t1 *wc)
 	}
 	wc->span.chans = wc->chans;
 	set_bit(DAHDI_FLAGBIT_RBS, &wc->span.flags);
-	init_waitqueue_head(&wc->span.maintq);
 	for (x = 0; x < wc->span.channels; x++) {
 		sprintf(wc->chans[x]->name, "WCT1/%d/%d", num, x + 1);
 		t1_chan_set_sigcap(&wc->span, x);

drivers/dahdi/xpp/xpp_dahdi.c

@@ -1113,7 +1113,6 @@ int dahdi_register_xpd(xpd_t *xpd)
 	span = &xpd->span;
 	snprintf(span->name, MAX_SPANNAME, "%s/%s", xbus->busname, xpd->xpdname);
 	span->deflaw = DAHDI_LAW_MULAW;	/* default, may be overriden by card_* drivers */
-	init_waitqueue_head(&span->maintq);
 	span->channels = cn;
 	span->chans = xpd->chans;
 

include/dahdi/kernel.h

@@ -879,7 +879,6 @@ struct dahdi_span {
 	struct dahdi_count count;	/*!< Performance and Error counters */
 
 	int maintstat;			/*!< Maintenance state */
-	wait_queue_head_t maintq;	/*!< Maintenance queue */
 	int mainttimer;			/*!< Maintenance timer */
 
 	int irqmisses;			/*!< Interrupt misses */