/*
 * fixmap.h: compile-time virtual memory allocation
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1998 Ingo Molnar
 *
 * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
 * x86_32 and x86_64 integration by Gustavo F. Padovan, February 2009
 * Break out common bits to asm-generic by Mark Salter, November 2013
 */

#ifndef __ASM_GENERIC_FIXMAP_H
#define __ASM_GENERIC_FIXMAP_H

#include <linux/bug.h>

#define __fix_to_virt(x)	(FIXADDR_TOP - ((x) << PAGE_SHIFT))
#define __virt_to_fix(x)	((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)

#ifndef __ASSEMBLY__
/*
 * 'index to address' translation. If anyone tries to use the idx
 * directly without translation, we catch the bug with a NULL-deference
 * kernel oops. Illegal ranges of incoming indices are caught too.
 */
static __always_inline unsigned long fix_to_virt(const unsigned int idx)
{
	BUILD_BUG_ON(idx >= __end_of_fixed_addresses);
	return __fix_to_virt(idx);
}

static inline unsigned long virt_to_fix(const unsigned long vaddr)
{
	BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
	return __virt_to_fix(vaddr);
}

/*
 * Provide some reasonable defaults for page flags.
 * Not all architectures use all of these different types and some
 * architectures use different names.
 */
#ifndef FIXMAP_PAGE_NORMAL
#define FIXMAP_PAGE_NORMAL PAGE_KERNEL
#endif
#if !defined(FIXMAP_PAGE_RO) && defined(PAGE_KERNEL_RO)
#define FIXMAP_PAGE_RO PAGE_KERNEL_RO
#endif
#ifndef FIXMAP_PAGE_NOCACHE
#define FIXMAP_PAGE_NOCACHE PAGE_KERNEL_NOCACHE
#endif
#ifndef FIXMAP_PAGE_IO
#define FIXMAP_PAGE_IO PAGE_KERNEL_IO
#endif
#ifndef FIXMAP_PAGE_CLEAR
#define FIXMAP_PAGE_CLEAR __pgprot(0)
#endif

#ifndef set_fixmap
#define set_fixmap(idx, phys)				\
	__set_fixmap(idx, phys, FIXMAP_PAGE_NORMAL)
#endif

#ifndef clear_fixmap
#define clear_fixmap(idx)			\
	__set_fixmap(idx, 0, FIXMAP_PAGE_CLEAR)
#endif

/* Return a pointer with offset calculated */
#define __set_fixmap_offset(idx, phys, flags)				\
({									\
	unsigned long ________addr;					\
	__set_fixmap(idx, phys, flags);					\
	________addr = fix_to_virt(idx) + ((phys) & (PAGE_SIZE - 1));	\
	________addr;							\
})

#define set_fixmap_offset(idx, phys) \
	__set_fixmap_offset(idx, phys, FIXMAP_PAGE_NORMAL)

/*
 * Some hardware wants to get fixmapped without caching.
 */
#define set_fixmap_nocache(idx, phys) \
	__set_fixmap(idx, phys, FIXMAP_PAGE_NOCACHE)

#define set_fixmap_offset_nocache(idx, phys) \
	__set_fixmap_offset(idx, phys, FIXMAP_PAGE_NOCACHE)

/*
 * Some fixmaps are for IO
 */
#define set_fixmap_io(idx, phys) \
	__set_fixmap(idx, phys, FIXMAP_PAGE_IO)

#define set_fixmap_offset_io(idx, phys) \
	__set_fixmap_offset(idx, phys, FIXMAP_PAGE_IO)

#endif /* __ASSEMBLY__ */
#endif /* __ASM_GENERIC_FIXMAP_H */
me='id' value='2cbf5b4212b1595449548f189a8fb2df0b25a03f'/><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>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-02-09 16:57:39 -0500</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-02-09 16:57:39 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>2cbf5b4212b1595449548f189a8fb2df0b25a03f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>cda37b0df90dff6a18070f3330da80183f6456e5</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>include</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=caa2858cd51c54fabd48c486b1b150ead539b872'>caa2858cd51c54fabd48c486b1b150ead539b872</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f&amp;id2=caa2858cd51c54fabd48c486b1b150ead539b872'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=242bd2d519d7194633e309286ba7ba29a1ad63e8'>242bd2d519d7194633e309286ba7ba29a1ad63e8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f&amp;id2=242bd2d519d7194633e309286ba7ba29a1ad63e8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'sctp-sender-stream-reconf-reset-add-streams'</div><div class='commit-msg'>Xin Long says:

====================
sctp: add sender-side procedures for stream reconf asoc reset and add streams

Patch 4/6 is to implement sender-side procedures for the SSN/TSN Reset
Request Parameter described in rfc6525 section 5.1.4, patch 3/6 is
ahead of it to define a function to make the request chunk for it.

Patch 6/6 is to implement sender-side procedures for the Add Incoming
and Outgoing Streams Request Parameter Request Parameter described in
rfc6525 section 5.1.5 and 5.1.6, patch 5/6 is ahead of it to define a
function to make the request chunk for it.

Patch 2/6 is a fix to recover streams states when it fails to send
request and Patch 1/6 is to drop some unncessary __packed from some
old structures.

v1-&gt;v2:
  - put these into a smaller group.
  - rename some temporary variables in the codes.
  - rename the titles of the commits and improve some changelogs.
v2-&gt;v3:
  - re-split the patchset and make sure it has no dead codes for review.
  - move some codes into stream.c from socket.c.
v3-&gt;v4:
  - add one more patch to fix a send reset stream request issue.
  - doing actual work only when request is sent successfully.
  - reduce some indents in sctp_send_add_streams.
v4-&gt;v5:
  - close streams before sending request and recover them when sending
    fails in patch 1/5 and patch 3/5
v5-&gt;v6:
  - add patch 1/6 to drop some unncessary __packed from some old structures.
  - remove __packed from some new structures in patch 3/6 and 5/6.
  - define unsigned int outcnt and incnt to make codes smaller in patch 6/6.
  - use krealloc instead of kcalloc and remove ksize check in patch 6/6, as
    ksize check is acutally used in krealloc already.
====================

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>Diffstat</a> (limited to 'include')</div><table summary='diffstat' class='diffstat'><tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/include/linux/sctp.h?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>include/linux/sctp.h</a></td><td class='right'>18</td><td class='graph'><table summary='file diffstat' width='18%'><tr><td class='add' style='width: 83.3%;'/><td class='rem' style='width: 16.7%;'/><td class='none' style='width: 0.0%;'/></tr></table></td></tr>
<tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/include/net/sctp/sctp.h?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>include/net/sctp/sctp.h</a></td><td class='right'>3</td><td class='graph'><table summary='file diffstat' width='18%'><tr><td class='add' style='width: 16.7%;'/><td class='rem' style='width: 0.0%;'/><td class='none' style='width: 83.3%;'/></tr></table></td></tr>
<tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/include/net/sctp/sm.h?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>include/net/sctp/sm.h</a></td><td class='right'>5</td><td class='graph'><table summary='file diffstat' width='18%'><tr><td class='add' style='width: 27.8%;'/><td class='rem' style='width: 0.0%;'/><td class='none' style='width: 72.2%;'/></tr></table></td></tr>
<tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/include/uapi/linux/sctp.h?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>include/uapi/linux/sctp.h</a></td><td class='right'>8</td><td class='graph'><table summary='file diffstat' width='18%'><tr><td class='add' style='width: 44.4%;'/><td class='rem' style='width: 0.0%;'/><td class='none' style='width: 55.6%;'/></tr></table></td></tr>
</table><div class='diffstat-summary'>4 files changed, 31 insertions, 3 deletions</div><table summary='diff' class='diff'><tr><td><div class='head'>diff --git a/include/linux/sctp.h b/include/linux/sctp.h