#
# LAPB Data Link Drive
#

config LAPB
	tristate "LAPB Data Link Driver"
	---help---
	  Link Access Procedure, Balanced (LAPB) is the data link layer (i.e.
	  the lower) part of the X.25 protocol. It offers a reliable
	  connection service to exchange data frames with one other host, and
	  it is used to transport higher level protocols (mostly X.25 Packet
	  Layer, the higher part of X.25, but others are possible as well).
	  Usually, LAPB is used with specialized X.21 network cards, but Linux
	  currently supports LAPB only over Ethernet connections. If you want
	  to use LAPB connections over Ethernet, say Y here and to "LAPB over
	  Ethernet driver" below. Read
	  <file:Documentation/networking/lapb-module.txt> for technical
	  details.

	  To compile this driver as a module, choose M here: the
	  module will be called lapb.  If unsure, say N.
a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='dd86e373e09fb16b83e8adf5c48c421a4ca76468'/><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=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/net/wireless/util.c'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/wireless/util.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/net/wireless/util.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/wireless/util.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/wireless/util.c'>
<input type='hidden' name='id' value='dd86e373e09fb16b83e8adf5c48c421a4ca76468'/><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/?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/wireless?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>wireless</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/wireless/util.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>util.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='dd86e373e09fb16b83e8adf5c48c421a4ca76468'/><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>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 23:58:38 +0100</td></tr>
<tr><th>committer</th><td>Ingo Molnar &lt;mingo@kernel.org&gt;</td><td class='right'>2017-02-01 08:37:27 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/wireless/util.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>dd86e373e09fb16b83e8adf5c48c421a4ca76468</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/wireless/util.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>55703c2ea8584e303e342090614e0aab3509ab21</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/wireless/util.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>net/wireless/util.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/wireless/util.c?id=0b3589be9b98994ce3d5aeca52445d1f5627c4ba'>0b3589be9b98994ce3d5aeca52445d1f5627c4ba</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/wireless/util.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468&amp;id2=0b3589be9b98994ce3d5aeca52445d1f5627c4ba'>diff</a>)</td></tr></table>
<div class='commit-subject'>perf/x86/intel/rapl: Make package handling more robust</div><div class='commit-msg'>The package management code in RAPL relies on package mapping being
available before a CPU is started. This changed with:

  9d85eb9119f4 ("x86/smpboot: Make logical package management more robust")

because the ACPI/BIOS information turned out to be unreliable, but that
left RAPL in broken state. This was not noticed because on a regular boot
all CPUs are online before RAPL is initialized.

A possible fix would be to reintroduce the mess which allocates a package
data structure in CPU prepare and when it turns out to already exist in
starting throw it away later in the CPU online callback. But that's a
horrible hack and not required at all because RAPL becomes functional for
perf only in the CPU online callback. That's correct because user space is
not yet informed about the CPU being onlined, so nothing caan rely on RAPL
being available on that particular CPU.

Move the allocation to the CPU online callback and simplify the hotplug
handling. At this point the package mapping is established and correct.

This also adds a missing check for available package data in the
event_init() function.

Reported-by: Yasuaki Ishimatsu &lt;yasu.isimatu@gmail.com&gt;
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Alexander Shishkin &lt;alexander.shishkin@linux.intel.com&gt;
Cc: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Sebastian Siewior &lt;bigeasy@linutronix.de&gt;
Cc: Stephane Eranian &lt;eranian@google.com&gt;
Cc: Vince Weaver &lt;vincent.weaver@maine.edu&gt;
Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust")
Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>Diffstat</a> (limited to 'net/wireless/util.c')</div><table summary='diffstat' class='diffstat'>