# tools/power/acpi/Makefile - ACPI tool Makefile
#
# Copyright (c) 2013, Intel Corporation
#   Author: Lv Zheng <lv.zheng@intel.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 2
# of the License.

include ../../scripts/Makefile.include

all: acpidbg acpidump ec
clean: acpidbg_clean acpidump_clean ec_clean
install: acpidbg_install acpidump_install ec_install
uninstall: acpidbg_uninstall acpidump_uninstall ec_uninstall

acpidbg acpidump ec: FORCE
	$(call descend,tools/$@,all)
acpidbg_clean acpidump_clean ec_clean:
	$(call descend,tools/$(@:_clean=),clean)
acpidbg_install acpidump_install ec_install:
	$(call descend,tools/$(@:_install=),install)
acpidbg_uninstall acpidump_uninstall ec_uninstall:
	$(call descend,tools/$(@:_uninstall=),uninstall)

.PHONY: FORCE
orm method='get'>
<input type='hidden' name='id' value='507053d23b886fdedc8336ca2233883fe4c82aa2'/><input type='hidden' name='id2' value='a810007afe239d59c1115fcaa06eb5b480f876e9'/><select name='h' onchange='this.form.submit();'>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
<option value='master' selected='selected'>master</option>
<option value='nds-private-remove'>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/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=507053d23b886fdedc8336ca2233883fe4c82aa2'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/sound/soc/blackfin/bf5xx-ac97.c'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/blackfin/bf5xx-ac97.c?id=507053d23b886fdedc8336ca2233883fe4c82aa2'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/blackfin/bf5xx-ac97.c?id=507053d23b886fdedc8336ca2233883fe4c82aa2'>commit</a><a class='active' href='/cgit.cgi/linux/net-next.git/diff/sound/soc/blackfin/bf5xx-ac97.c?id=507053d23b886fdedc8336ca2233883fe4c82aa2&amp;id2=a810007afe239d59c1115fcaa06eb5b480f876e9'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/soc/blackfin/bf5xx-ac97.c'>
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<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=''/>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/diff/?id=507053d23b886fdedc8336ca2233883fe4c82aa2&amp;id2=a810007afe239d59c1115fcaa06eb5b480f876e9'>root</a>/<a href='/cgit.cgi/linux/net-next.git/diff/sound?id=507053d23b886fdedc8336ca2233883fe4c82aa2&amp;id2=a810007afe239d59c1115fcaa06eb5b480f876e9'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc?id=507053d23b886fdedc8336ca2233883fe4c82aa2&amp;id2=a810007afe239d59c1115fcaa06eb5b480f876e9'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/blackfin?id=507053d23b886fdedc8336ca2233883fe4c82aa2&amp;id2=a810007afe239d59c1115fcaa06eb5b480f876e9'>blackfin</a>/<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/blackfin/bf5xx-ac97.c?id=507053d23b886fdedc8336ca2233883fe4c82aa2&amp;id2=a810007afe239d59c1115fcaa06eb5b480f876e9'>bf5xx-ac97.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='507053d23b886fdedc8336ca2233883fe4c82aa2'/><input type='hidden' name='id2' value='a810007afe239d59c1115fcaa06eb5b480f876e9'/><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><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=507053d23b886fdedc8336ca2233883fe4c82aa2&amp;id2=a810007afe239d59c1115fcaa06eb5b480f876e9'>Diffstat</a> (limited to 'sound/soc/blackfin/bf5xx-ac97.c')</div><table summary='diffstat' class='diffstat'>8b08b519540041b06ed0ab0b1c005076b932e8e</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/mac802154?h=nds-private-remove&amp;id=add7c65ca426b7a37184dd3d2172394e23d585d6'>net/mac802154</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/mac802154?h=nds-private-remove&amp;id=75422726b0f717d67db3283c2eb5bc14fa2619c5'>75422726b0f717d67db3283c2eb5bc14fa2619c5</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/mac802154?h=nds-private-remove&amp;id=add7c65ca426b7a37184dd3d2172394e23d585d6&amp;id2=75422726b0f717d67db3283c2eb5bc14fa2619c5'>diff</a>)</td></tr></table>
<div class='commit-subject'>pid: fix lockdep deadlock warning due to ucount_lock</div><div class='commit-msg'>=========================================================
[ INFO: possible irq lock inversion dependency detected ]
4.10.0-rc2-00024-g4aecec9-dirty #118 Tainted: G        W
---------------------------------------------------------
swapper/1/0 just changed the state of lock:
 (&amp;(&amp;sighand-&gt;siglock)-&gt;rlock){-.....}, at: [&lt;ffffffffbd0a1bc6&gt;] __lock_task_sighand+0xb6/0x2c0
but this lock took another, HARDIRQ-unsafe lock in the past:
 (ucounts_lock){+.+...}
and interrupts could create inverse lock ordering between them.
other info that might help us debug this:
Chain exists of:                 &amp;(&amp;sighand-&gt;siglock)-&gt;rlock --&gt; &amp;(&amp;tty-&gt;ctrl_lock)-&gt;rlock --&gt; ucounts_lock
 Possible interrupt unsafe locking scenario:
       CPU0                    CPU1
       ----                    ----
  lock(ucounts_lock);
                               local_irq_disable();
                               lock(&amp;(&amp;sighand-&gt;siglock)-&gt;rlock);
                               lock(&amp;(&amp;tty-&gt;ctrl_lock)-&gt;rlock);
  &lt;Interrupt&gt;
    lock(&amp;(&amp;sighand-&gt;siglock)-&gt;rlock);

 *** DEADLOCK ***

This patch removes a dependency between rlock and ucount_lock.

Fixes: f333c700c610 ("pidns: Add a limit on the number of pid namespaces")
Cc: stable@vger.kernel.org
Signed-off-by: Andrei Vagin &lt;avagin@openvz.org&gt;
Acked-by: Al Viro &lt;viro@ZenIV.linux.org.uk&gt;
Signed-off-by: Eric W. Biederman &lt;ebiederm@xmission.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=add7c65ca426b7a37184dd3d2172394e23d585d6'>Diffstat</a> (limited to 'net/mac802154')</div><table summary='diffstat' class='diffstat'>