/*
 * Copyright IBM Corp. 2001,2008
 *
 * This file contains the IRQ specific code for hvc_console
 *
 */

#include <linux/interrupt.h>

#include "hvc_console.h"

static irqreturn_t hvc_handle_interrupt(int irq, void *dev_instance)
{
	/* if hvc_poll request a repoll, then kick the hvcd thread */
	if (hvc_poll(dev_instance))
		hvc_kick();

	/*
	 * We're safe to always return IRQ_HANDLED as the hvcd thread will
	 * iterate through each hvc_struct.
	 */
	return IRQ_HANDLED;
}

/*
 * For IRQ based systems these callbacks can be used
 */
int notifier_add_irq(struct hvc_struct *hp, int irq)
{
	int rc;

	if (!irq) {
		hp->irq_requested = 0;
		return 0;
	}
	rc = request_irq(irq, hvc_handle_interrupt, hp->flags,
			"hvc_console", hp);
	if (!rc)
		hp->irq_requested = 1;
	return rc;
}

void notifier_del_irq(struct hvc_struct *hp, int irq)
{
	if (!hp->irq_requested)
		return;
	free_irq(irq, hp);
	hp->irq_requested = 0;
}

void notifier_hangup_irq(struct hvc_struct *hp, int irq)
{
	notifier_del_irq(hp, irq);
}
>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
<option value='master'>master</option>
<option value='nds-private-remove' selected='selected'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/tools/kvm/kvm_stat?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/tools/kvm/kvm_stat?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/tools/kvm/kvm_stat?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/tools/kvm/kvm_stat?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/tools/kvm/kvm_stat'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='51964e9e12d0a054002a1a0d1dec4f661c7aaf28'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/kvm?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28'>kvm</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/kvm/kvm_stat?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28'>kvm_stat</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/tools/kvm/kvm_stat?h=nds-private-remove&amp;id=51964e9e12d0a054002a1a0d1dec4f661c7aaf28&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd'>Diffstat</a> (limited to 'drivers/usb/usbip/README')</div><table summary='diffstat' class='diffstat'>