#
# CCITT X.25 Packet Layer
#

config X25
	tristate "CCITT X.25 Packet Layer"
	---help---
	  X.25 is a set of standardized network protocols, similar in scope to
	  frame relay; the one physical line from your box to the X.25 network
	  entry point can carry several logical point-to-point connections
	  (called "virtual circuits") to other computers connected to the X.25
	  network. Governments, banks, and other organizations tend to use it
	  to connect to each other or to form Wide Area Networks (WANs). Many
	  countries have public X.25 networks. X.25 consists of two
	  protocols: the higher level Packet Layer Protocol (PLP) (say Y here
	  if you want that) and the lower level data link layer protocol LAPB
	  (say Y to "LAPB Data Link Driver" below if you want that).

	  You can read more about X.25 at <http://www.sangoma.com/tutorials/x25/> and
	  <http://docwiki.cisco.com/wiki/X.25>.
	  Information about X.25 for Linux is contained in the files
	  <file:Documentation/networking/x25.txt> and
	  <file:Documentation/networking/x25-iface.txt>.

	  One connects to an X.25 network either with a dedicated network card
	  using the X.21 protocol (not yet supported by Linux) or one can do
	  X.25 over a standard telephone line using an ordinary modem (say Y
	  to "X.25 async driver" below) or over Ethernet using an ordinary
	  Ethernet card and the LAPB over Ethernet (say Y to "LAPB Data Link
	  Driver" and "LAPB over Ethernet driver" below).

	  To compile this driver as a module, choose M here: the module
	  will be called x25. If unsure, say N.


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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=89d82452d1fd283bb1e313bc7a1f7c324362cf02'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?h=nds-private-remove&amp;id=89d82452d1fd283bb1e313bc7a1f7c324362cf02'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/caif?h=nds-private-remove&amp;id=89d82452d1fd283bb1e313bc7a1f7c324362cf02'>caif</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/caif/Kconfig?h=nds-private-remove&amp;id=89d82452d1fd283bb1e313bc7a1f7c324362cf02'>Kconfig</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/caif/Kconfig?h=nds-private-remove&amp;id=89d82452d1fd283bb1e313bc7a1f7c324362cf02&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
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</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>Laura Abbott &lt;labbott@redhat.com&gt;</td><td class='right'>2016-12-21 12:32:54 -0800</td></tr>
<tr><th>committer</th><td>Herbert Xu &lt;herbert@gondor.apana.org.au&gt;</td><td class='right'>2016-12-27 17:32:11 +0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/drm?id=02608e02fbec04fccf2eb0cc8d8082f65c0a4286'>02608e02fbec04fccf2eb0cc8d8082f65c0a4286</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/drm?id=02608e02fbec04fccf2eb0cc8d8082f65c0a4286'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=02608e02fbec04fccf2eb0cc8d8082f65c0a4286'>37ff0410d130cfe77185f591b07cd6403f207f0c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/drm?id=02608e02fbec04fccf2eb0cc8d8082f65c0a4286'>include/drm</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/drm?id=7ce7d89f48834cefece7804d38fc5d85382edf77'>7ce7d89f48834cefece7804d38fc5d85382edf77</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/drm?id=02608e02fbec04fccf2eb0cc8d8082f65c0a4286&amp;id2=7ce7d89f48834cefece7804d38fc5d85382edf77'>diff</a>)</td></tr></table>
<div class='commit-subject'>crypto: testmgr - Use heap buffer for acomp test input</div><div class='commit-msg'>Christopher Covington reported a crash on aarch64 on recent Fedora
kernels:

kernel BUG at ./include/linux/scatterlist.h:140!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 752 Comm: cryptomgr_test Not tainted 4.9.0-11815-ge93b1cc #162
Hardware name: linux,dummy-virt (DT)
task: ffff80007c650080 task.stack: ffff800008910000
PC is at sg_init_one+0xa0/0xb8
LR is at sg_init_one+0x24/0xb8
...
[&lt;ffff000008398db8&gt;] sg_init_one+0xa0/0xb8
[&lt;ffff000008350a44&gt;] test_acomp+0x10c/0x438
[&lt;ffff000008350e20&gt;] alg_test_comp+0xb0/0x118
[&lt;ffff00000834f28c&gt;] alg_test+0x17c/0x2f0
[&lt;ffff00000834c6a4&gt;] cryptomgr_test+0x44/0x50
[&lt;ffff0000080dac70&gt;] kthread+0xf8/0x128
[&lt;ffff000008082ec0&gt;] ret_from_fork+0x10/0x50

The test vectors used for input are part of the kernel image. These
inputs are passed as a buffer to sg_init_one which eventually blows up
with BUG_ON(!virt_addr_valid(buf)). On arm64, virt_addr_valid returns
false for the kernel image since virt_to_page will not return the
correct page. Fix this by copying the input vectors to heap buffer
before setting up the scatterlist.

Reported-by: Christopher Covington &lt;cov@codeaurora.org&gt;
Fixes: d7db7a882deb ("crypto: acomp - update testmgr with support for acomp")
Signed-off-by: Laura Abbott &lt;labbott@redhat.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=02608e02fbec04fccf2eb0cc8d8082f65c0a4286'>Diffstat</a> (limited to 'include/drm')</div><table summary='diffstat' class='diffstat'>