/*
 * Copyright 2016, Michael Ellerman, IBM Corp.
 * Licensed under GPLv2.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>

#include <asm/cputable.h>

#include "utils.h"

#define SIZE (64 * 1024)

int test_prot_sao(void)
{
	char *p;

	/* 2.06 or later should support SAO */
	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06));

	/*
	 * Ensure we can ask for PROT_SAO.
	 * We can't really verify that it does the right thing, but at least we
	 * confirm the kernel will accept it.
	 */
	p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE | PROT_SAO,
		 MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
	FAIL_IF(p == MAP_FAILED);

	/* Write to the mapping, to at least cause a fault */
	memset(p, 0xaa, SIZE);

	return 0;
}

int main(void)
{
	return test_harness(test_prot_sao, "prot-sao");
}
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>dwc2</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='50dcb6cdb70281d76b28d1564f8e076bb08f2c60'/><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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 14:42:34 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 14:42:34 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>50dcb6cdb70281d76b28d1564f8e076bb08f2c60</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/dwc2?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>patch</a>)</td></tr>
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<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2?id=72df5eba704252e54b5b19395cb938f8bb55cab8'>72df5eba704252e54b5b19395cb938f8bb55cab8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/dwc2?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60&amp;id2=72df5eba704252e54b5b19395cb938f8bb55cab8'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2?id=f5b0cba8f23915e92932f11eb063e37d70556a89'>f5b0cba8f23915e92932f11eb063e37d70556a89</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/dwc2?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60&amp;id2=f5b0cba8f23915e92932f11eb063e37d70556a89'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'dm-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm</div><div class='commit-msg'>Pull device mapper fixes from Mike Snitzer:

 - a fix for a race in .request_fn request-based DM request handling vs
   DM device destruction

 - an RCU fix for dm-crypt's kernel keyring support that was included in
   4.10-rc1

 - a -Wbool-operation warning fix for DM multipath

* tag 'dm-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm crypt: replace RCU read-side section with rwsem
  dm rq: cope with DM device destruction while in dm_old_request_fn()
  dm mpath: cleanup -Wbool-operation warning in choose_pgpath()
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>Diffstat</a> (limited to 'drivers/usb/dwc2')</div><table summary='diffstat' class='diffstat'>