/*
 *  (C) 2011 Thomas Renninger <trenn@suse.de>, Novell Inc.
 *
 *  Licensed under the terms of the GNU GPL License version 2.
 */


#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <getopt.h>

#include "helpers/helpers.h"
#include "helpers/sysfs.h"
#include "helpers/bitmask.h"

static struct option set_opts[] = {
	{"perf-bias", required_argument, NULL, 'b'},
	{ },
};

static void print_wrong_arg_exit(void)
{
	printf(_("invalid or unknown argument\n"));
	exit(EXIT_FAILURE);
}

int cmd_set(int argc, char **argv)
{
	extern char *optarg;
	extern int optind, opterr, optopt;
	unsigned int cpu;

	union {
		struct {
			int perf_bias:1;
		};
		int params;
	} params;
	int perf_bias = 0;
	int ret = 0;

	setlocale(LC_ALL, "");
	textdomain(PACKAGE);

	params.params = 0;
	/* parameter parsing */
	while ((ret = getopt_long(argc, argv, "b:",
						set_opts, NULL)) != -1) {
		switch (ret) {
		case 'b':
			if (params.perf_bias)
				print_wrong_arg_exit();
			perf_bias = atoi(optarg);
			if (perf_bias < 0 || perf_bias > 15) {
				printf(_("--perf-bias param out "
					 "of range [0-%d]\n"), 15);
				print_wrong_arg_exit();
			}
			params.perf_bias = 1;
			break;
		default:
			print_wrong_arg_exit();
		}
	};

	if (!params.params)
		print_wrong_arg_exit();

	/* Default is: set all CPUs */
	if (bitmask_isallclear(cpus_chosen))
		bitmask_setall(cpus_chosen);

	/* loop over CPUs */
	for (cpu = bitmask_first(cpus_chosen);
	     cpu <= bitmask_last(cpus_chosen); cpu++) {

		if (!bitmask_isbitset(cpus_chosen, cpu))
			continue;

		if (sysfs_is_cpu_online(cpu) != 1){
			fprintf(stderr, _("Cannot set values on CPU %d:"), cpu);
			fprintf(stderr, _(" *is offline\n"));
			continue;
		}

		if (params.perf_bias) {
			ret = msr_intel_set_perf_bias(cpu, perf_bias);
			if (ret) {
				fprintf(stderr, _("Error setting perf-bias "
						  "value on CPU %d\n"), cpu);
				break;
			}
		}
	}
	return ret;
}
lass='active' href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='4d191b1b63c209e37bf27938ef365244d3c41084'/><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/commit/?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>usb</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='4d191b1b63c209e37bf27938ef365244d3c41084'/><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>Marc Zyngier &lt;marc.zyngier@arm.com&gt;</td><td class='right'>2017-01-17 14:21:56 +0000</td></tr>
<tr><th>committer</th><td>Bjorn Helgaas &lt;bhelgaas@google.com&gt;</td><td class='right'>2017-01-17 08:41:51 -0600</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>4d191b1b63c209e37bf27938ef365244d3c41084</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb?id=4d191b1b63c209e37bf27938ef365244d3c41084'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>f2ab6cdb65ddacdf2e7c019cd55e353f0c16b400</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>drivers/usb</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?h=nds-private-remove&amp;id=51ebfc92b72b4f7dac1ab45683bf56741e454b8c'>51ebfc92b72b4f7dac1ab45683bf56741e454b8c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084&amp;id2=51ebfc92b72b4f7dac1ab45683bf56741e454b8c'>diff</a>)</td></tr></table>
<div class='commit-subject'>PCI/MSI: pci-xgene-msi: Fix CPU hotplug registration handling</div><div class='commit-msg'>The conversion to the new hotplug state machine introduced a regression
where a successful hotplug registration would be treated as an error,
effectively disabling the MSI driver forever.

Fix it by doing the proper check on the return value.

Fixes: 9c248f8896e6 ("PCI/xgene-msi: Convert to hotplug state machine")
Signed-off-by: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Sebastian Andrzej Siewior &lt;bigeasy@linutronix.de&gt;
Tested-by: Duc Dang &lt;dhdang@apm.com&gt;
CC: Thomas Gleixner &lt;tglx@linutronix.de&gt;
CC: stable@vger.kernel.org</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=4d191b1b63c209e37bf27938ef365244d3c41084'>Diffstat</a> (limited to 'drivers/usb')</div><table summary='diffstat' class='diffstat'>