/*
 * Copyright 2006, Red Hat, Inc., Dave Jones
 * Released under the General Public License (GPL).
 *
 * This file contains the linked list validation for DEBUG_LIST.
 */

#include <linux/export.h>
#include <linux/list.h>
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/rculist.h>

/*
 * Check that the data structures for the list manipulations are reasonably
 * valid. Failures here indicate memory corruption (and possibly an exploit
 * attempt).
 */

bool __list_add_valid(struct list_head *new, struct list_head *prev,
		      struct list_head *next)
{
	CHECK_DATA_CORRUPTION(next->prev != prev,
		"list_add corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
		prev, next->prev, next);
	CHECK_DATA_CORRUPTION(prev->next != next,
		"list_add corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
		next, prev->next, prev);
	CHECK_DATA_CORRUPTION(new == prev || new == next,
		"list_add double add: new=%p, prev=%p, next=%p.\n",
		new, prev, next);

	return true;
}
EXPORT_SYMBOL(__list_add_valid);

bool __list_del_entry_valid(struct list_head *entry)
{
	struct list_head *prev, *next;

	prev = entry->prev;
	next = entry->next;

	CHECK_DATA_CORRUPTION(next == LIST_POISON1,
		"list_del corruption, %p->next is LIST_POISON1 (%p)\n",
		entry, LIST_POISON1);
	CHECK_DATA_CORRUPTION(prev == LIST_POISON2,
		"list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
		entry, LIST_POISON2);
	CHECK_DATA_CORRUPTION(prev->next != entry,
		"list_del corruption. prev->next should be %p, but was %p\n",
		entry, prev->next);
	CHECK_DATA_CORRUPTION(next->prev != entry,
		"list_del corruption. next->prev should be %p, but was %p\n",
		entry, next->prev);
	return true;

}
EXPORT_SYMBOL(__list_del_entry_valid);
are/radeon/RV610_pfp.bin.ihex'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/firmware/radeon/RV610_pfp.bin.ihex'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=e34bac726d27056081d0250c0e173e4b155aa340'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/firmware?id=e34bac726d27056081d0250c0e173e4b155aa340'>firmware</a>/<a href='/cgit.cgi/linux/net-next.git/commit/firmware/radeon?id=e34bac726d27056081d0250c0e173e4b155aa340'>radeon</a>/<a href='/cgit.cgi/linux/net-next.git/commit/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340'>RV610_pfp.bin.ihex</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='e34bac726d27056081d0250c0e173e4b155aa340'/><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'>2016-12-12 20:50:02 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-12 20:50:02 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340'>e34bac726d27056081d0250c0e173e4b155aa340</a> (<a href='/cgit.cgi/linux/net-next.git/patch/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=e34bac726d27056081d0250c0e173e4b155aa340'>85607d0b3b185380fb3267866020c6a4372b9298</a> /<a href='/cgit.cgi/linux/net-next.git/tree/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340'>firmware/radeon/RV610_pfp.bin.ihex</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/firmware/radeon/RV610_pfp.bin.ihex?id=fe6bce8d30a86c693bf7cfbf4759cbafd121289f'>fe6bce8d30a86c693bf7cfbf4759cbafd121289f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340&amp;id2=fe6bce8d30a86c693bf7cfbf4759cbafd121289f'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/firmware/radeon/RV610_pfp.bin.ihex?id=39a0e975c37dee93fa1b8ea5f7eacd1c4c8a586e'>39a0e975c37dee93fa1b8ea5f7eacd1c4c8a586e</a> (<a href='/cgit.cgi/linux/net-next.git/diff/firmware/radeon/RV610_pfp.bin.ihex?id=e34bac726d27056081d0250c0e173e4b155aa340&amp;id2=39a0e975c37dee93fa1b8ea5f7eacd1c4c8a586e'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'akpm' (patches from Andrew)</div><div class='commit-msg'>Merge updates from Andrew Morton:

 - various misc bits

 - most of MM (quite a lot of MM material is awaiting the merge of
   linux-next dependencies)

 - kasan

 - printk updates

 - procfs updates

 - MAINTAINERS

 - /lib updates

 - checkpatch updates

* emailed patches from Andrew Morton &lt;akpm@linux-foundation.org&gt;: (123 commits)
  init: reduce rootwait polling interval time to 5ms
  binfmt_elf: use vmalloc() for allocation of vma_filesz
  checkpatch: don't emit unified-diff error for rename-only patches
  checkpatch: don't check c99 types like uint8_t under tools
  checkpatch: avoid multiple line dereferences
  checkpatch: don't check .pl files, improve absolute path commit log test
  scripts/checkpatch.pl: fix spelling
  checkpatch: don't try to get maintained status when --no-tree is given
  lib/ida: document locking requirements a bit better
  lib/rbtree.c: fix typo in comment of ____rb_erase_color
  lib/Kconfig.debug: make CONFIG_STRICT_DEVMEM depend on CONFIG_DEVMEM
  MAINTAINERS: add drm and drm/i915 irc channels
  MAINTAINERS: add "C:" for URI for chat where developers hang out
  MAINTAINERS: add drm and drm/i915 bug filing info
  MAINTAINERS: add "B:" for URI where to file bugs
  get_maintainer: look for arbitrary letter prefixes in sections
  printk: add Kconfig option to set default console loglevel
  printk/sound: handle more message headers
  printk/btrfs: handle more message headers
  printk/kdb: handle more message headers
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=e34bac726d27056081d0250c0e173e4b155aa340'>Diffstat</a> (limited to 'firmware/radeon/RV610_pfp.bin.ihex')</div><table summary='diffstat' class='diffstat'>