/*
 * lib/smp_processor_id.c
 *
 * DEBUG_PREEMPT variant of smp_processor_id().
 */
#include <linux/export.h>
#include <linux/kallsyms.h>
#include <linux/sched.h>

notrace static unsigned int check_preemption_disabled(const char *what1,
							const char *what2)
{
	int this_cpu = raw_smp_processor_id();

	if (likely(preempt_count()))
		goto out;

	if (irqs_disabled())
		goto out;

	/*
	 * Kernel threads bound to a single CPU can safely use
	 * smp_processor_id():
	 */
	if (cpumask_equal(tsk_cpus_allowed(current), cpumask_of(this_cpu)))
		goto out;

	/*
	 * It is valid to assume CPU-locality during early bootup:
	 */
	if (system_state != SYSTEM_RUNNING)
		goto out;

	/*
	 * Avoid recursion:
	 */
	preempt_disable_notrace();

	if (!printk_ratelimit())
		goto out_enable;

	printk(KERN_ERR "BUG: using %s%s() in preemptible [%08x] code: %s/%d\n",
		what1, what2, preempt_count() - 1, current->comm, current->pid);

	print_symbol("caller is %s\n", (long)__builtin_return_address(0));
	dump_stack();

out_enable:
	preempt_enable_no_resched_notrace();
out:
	return this_cpu;
}

notrace unsigned int debug_smp_processor_id(void)
{
	return check_preemption_disabled("smp_processor_id", "");
}
EXPORT_SYMBOL(debug_smp_processor_id);

notrace void __this_cpu_preempt_check(const char *op)
{
	check_preemption_disabled("__this_cpu_", op);
}
EXPORT_SYMBOL(__this_cpu_preempt_check);
ubmit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>Documentation</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>devicetree</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree/bindings?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>bindings</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree/bindings/spmi?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>spmi</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='7ddedebb03b7ec030c528ebacdd43e45373476e3'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>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><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Takashi Iwai &lt;tiwai@suse.de&gt;</td><td class='right'>2016-09-29 18:21:46 +0200</td></tr>
<tr><th>committer</th><td>Takashi Iwai &lt;tiwai@suse.de&gt;</td><td class='right'>2016-11-10 17:59:18 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree/bindings/spmi?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>7ddedebb03b7ec030c528ebacdd43e45373476e3</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation/devicetree/bindings/spmi?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>b013d02605137fe74d5b0f6500714a5220149063</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation/devicetree/bindings/spmi?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>Documentation/devicetree/bindings/spmi</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/devicetree/bindings/spmi?id=8551914a5e19094255a0e2aadb24f70736f7ba7d'>8551914a5e19094255a0e2aadb24f70736f7ba7d</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/devicetree/bindings/spmi?id=7ddedebb03b7ec030c528ebacdd43e45373476e3&amp;id2=8551914a5e19094255a0e2aadb24f70736f7ba7d'>diff</a>)</td></tr></table>
<div class='commit-subject'>ALSA: doc: ReSTize writing-an-alsa-driver document</div><div class='commit-msg'>Another simple conversion from DocBook to ReST.
This required a few manual fixups and reformats, but the most of
contents are kept as is.

Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=7ddedebb03b7ec030c528ebacdd43e45373476e3'>Diffstat</a> (limited to 'Documentation/devicetree/bindings/spmi')</div><table summary='diffstat' class='diffstat'>