/*
 * lz4defs.h -- architecture specific defines
 *
 * Copyright (C) 2013, LG Electronics, Kyungsik Lee <kyungsik.lee@lge.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

/*
 * Detects 64 bits mode
 */
#if defined(CONFIG_64BIT)
#define LZ4_ARCH64 1
#else
#define LZ4_ARCH64 0
#endif

/*
 * Architecture-specific macros
 */
#define BYTE	u8
typedef struct _U16_S { u16 v; } U16_S;
typedef struct _U32_S { u32 v; } U32_S;
typedef struct _U64_S { u64 v; } U64_S;
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)

#define A16(x) (((U16_S *)(x))->v)
#define A32(x) (((U32_S *)(x))->v)
#define A64(x) (((U64_S *)(x))->v)

#define PUT4(s, d) (A32(d) = A32(s))
#define PUT8(s, d) (A64(d) = A64(s))

#define LZ4_READ_LITTLEENDIAN_16(d, s, p)	\
	(d = s - A16(p))

#define LZ4_WRITE_LITTLEENDIAN_16(p, v)	\
	do {	\
		A16(p) = v; \
		p += 2; \
	} while (0)
#else /* CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS */

#define A64(x) get_unaligned((u64 *)&(((U16_S *)(x))->v))
#define A32(x) get_unaligned((u32 *)&(((U16_S *)(x))->v))
#define A16(x) get_unaligned((u16 *)&(((U16_S *)(x))->v))

#define PUT4(s, d) \
	put_unaligned(get_unaligned((const u32 *) s), (u32 *) d)
#define PUT8(s, d) \
	put_unaligned(get_unaligned((const u64 *) s), (u64 *) d)

#define LZ4_READ_LITTLEENDIAN_16(d, s, p)	\
	(d = s - get_unaligned_le16(p))

#define LZ4_WRITE_LITTLEENDIAN_16(p, v)			\
	do {						\
		put_unaligned_le16(v, (u16 *)(p));	\
		p += 2;					\
	} while (0)
#endif

#define COPYLENGTH 8
#define ML_BITS  4
#define ML_MASK  ((1U << ML_BITS) - 1)
#define RUN_BITS (8 - ML_BITS)
#define RUN_MASK ((1U << RUN_BITS) - 1)
#define MEMORY_USAGE	14
#define MINMATCH	4
#define SKIPSTRENGTH	6
#define LASTLITERALS	5
#define MFLIMIT		(COPYLENGTH + MINMATCH)
#define MINLENGTH	(MFLIMIT + 1)
#define MAXD_LOG	16
#define MAXD		(1 << MAXD_LOG)
#define MAXD_MASK	(u32)(MAXD - 1)
#define MAX_DISTANCE	(MAXD - 1)
#define HASH_LOG	(MAXD_LOG - 1)
#define HASHTABLESIZE	(1 << HASH_LOG)
#define MAX_NB_ATTEMPTS	256
#define OPTIMAL_ML	(int)((ML_MASK-1)+MINMATCH)
#define LZ4_64KLIMIT	((1<<16) + (MFLIMIT - 1))
#define HASHLOG64K	((MEMORY_USAGE - 2) + 1)
#define HASH64KTABLESIZE	(1U << HASHLOG64K)
#define LZ4_HASH_VALUE(p)	(((A32(p)) * 2654435761U) >> \
				((MINMATCH * 8) - (MEMORY_USAGE-2)))
#define LZ4_HASH64K_VALUE(p)	(((A32(p)) * 2654435761U) >> \
				((MINMATCH * 8) - HASHLOG64K))
#define HASH_VALUE(p)		(((A32(p)) * 2654435761U) >> \
				((MINMATCH * 8) - HASH_LOG))

#if LZ4_ARCH64/* 64-bit */
#define STEPSIZE 8

#define LZ4_COPYSTEP(s, d)	\
	do {			\
		PUT8(s, d);	\
		d += 8;		\
		s += 8;		\
	} while (0)

#define LZ4_COPYPACKET(s, d)	LZ4_COPYSTEP(s, d)

#define LZ4_SECURECOPY(s, d, e)			\
	do {					\
		if (d < e) {			\
			LZ4_WILDCOPY(s, d, e);	\
		}				\
	} while (0)
#define HTYPE u32

#ifdef __BIG_ENDIAN
#define LZ4_NBCOMMONBYTES(val) (__builtin_clzll(val) >> 3)
#else
#define LZ4_NBCOMMONBYTES(val) (__builtin_ctzll(val) >> 3)
#endif

#else	/* 32-bit */
#define STEPSIZE 4

#define LZ4_COPYSTEP(s, d)	\
	do {			\
		PUT4(s, d);	\
		d += 4;		\
		s += 4;		\
	} while (0)

#define LZ4_COPYPACKET(s, d)		\
	do {				\
		LZ4_COPYSTEP(s, d);	\
		LZ4_COPYSTEP(s, d);	\
	} while (0)

#define LZ4_SECURECOPY	LZ4_WILDCOPY
#define HTYPE const u8*

#ifdef __BIG_ENDIAN
#define LZ4_NBCOMMONBYTES(val) (__builtin_clz(val) >> 3)
#else
#define LZ4_NBCOMMONBYTES(val) (__builtin_ctz(val) >> 3)
#endif

#endif

#define LZ4_WILDCOPY(s, d, e)		\
	do {				\
		LZ4_COPYPACKET(s, d);	\
	} while (d < e)

#define LZ4_BLINDCOPY(s, d, l)	\
	do {	\
		u8 *e = (d) + l;	\
		LZ4_WILDCOPY(s, d, e);	\
		d = e;	\
	} while (0)
lue='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'>2017-01-27 12:54:16 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:54:16 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/xfrm4_tunnel.c?id=1b1bc42c1692e9b62756323c675a44cb1a1f9dbd'>1b1bc42c1692e9b62756323c675a44cb1a1f9dbd</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/ipv4/xfrm4_tunnel.c?id=1b1bc42c1692e9b62756323c675a44cb1a1f9dbd'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=1b1bc42c1692e9b62756323c675a44cb1a1f9dbd'>d514a2d8512fc52c15747841e2368f8f99a50787</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/ipv4/xfrm4_tunnel.c?id=1b1bc42c1692e9b62756323c675a44cb1a1f9dbd'>net/ipv4/xfrm4_tunnel.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/xfrm4_tunnel.c?id=3365135d43f861003555c963b309672d053a2228'>3365135d43f861003555c963b309672d053a2228</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ipv4/xfrm4_tunnel.c?id=1b1bc42c1692e9b62756323c675a44cb1a1f9dbd&amp;id2=3365135d43f861003555c963b309672d053a2228'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/xfrm4_tunnel.c?id=950eabbd6ddedc1b08350b9169a6a51b130ebaaf'>950eabbd6ddedc1b08350b9169a6a51b130ebaaf</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ipv4/xfrm4_tunnel.c?id=1b1bc42c1692e9b62756323c675a44cb1a1f9dbd&amp;id2=950eabbd6ddedc1b08350b9169a6a51b130ebaaf'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</div><div class='commit-msg'>Pull networking fixes from David Miller:

 1) GTP fixes from Andreas Schultz (missing genl module alias, clear IP
    DF on transmit).

 2) Netfilter needs to reflect the fwmark when sending resets, from Pau
    Espin Pedrol.

 3) nftable dump OOPS fix from Liping Zhang.

 4) Fix erroneous setting of VIRTIO_NET_HDR_F_DATA_VALID on transmit,
    from Rolf Neugebauer.

 5) Fix build error of ipt_CLUSTERIP when procfs is disabled, from Arnd
    Bergmann.

 6) Fix regression in handling of NETIF_F_SG in harmonize_features(),
    from Eric Dumazet.

 7) Fix RTNL deadlock wrt. lwtunnel module loading, from David Ahern.

 8) tcp_fastopen_create_child() needs to setup tp-&gt;max_window, from
    Alexey Kodanev.

 9) Missing kmemdup() failure check in ipv6 segment routing code, from
    Eric Dumazet.

10) Don't execute unix_bind() under the bindlock, otherwise we deadlock
    with splice. From WANG Cong.

11) ip6_tnl_parse_tlv_enc_lim() potentially reallocates the skb buffer,
    therefore callers must reload cached header pointers into that skb.
    Fix from Eric Dumazet.

12) Fix various bugs in legacy IRQ fallback handling in alx driver, from
    Tobias Regnery.

13) Do not allow lwtunnel drivers to be unloaded while they are
    referenced by active instances, from Robert Shearman.

14) Fix truncated PHY LED trigger names, from Geert Uytterhoeven.

15) Fix a few regressions from virtio_net XDP support, from John
    Fastabend and Jakub Kicinski.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (102 commits)
  ISDN: eicon: silence misleading array-bounds warning
  net: phy: micrel: add support for KSZ8795
  gtp: fix cross netns recv on gtp socket
  gtp: clear DF bit on GTP packet tx
  gtp: add genl family modules alias
  tcp: don't annotate mark on control socket from tcp_v6_send_response()
  ravb: unmap descriptors when freeing rings
  virtio_net: reject XDP programs using header adjustment
  virtio_net: use dev_kfree_skb for small buffer XDP receive
  r8152: check rx after napi is enabled
  r8152: re-schedule napi for tx
  r8152: avoid start_xmit to schedule napi when napi is disabled
  r8152: avoid start_xmit to call napi_schedule during autosuspend
  net: dsa: Bring back device detaching in dsa_slave_suspend()
  net: phy: leds: Fix truncated LED trigger names
  net: phy: leds: Break dependency of phy.h on phy_led_triggers.h
  net: phy: leds: Clear phy_num_led_triggers on failure to avoid crash
  net-next: ethernet: mediatek: change the compatible string
  Documentation: devicetree: change the mediatek ethernet compatible string
  bnxt_en: Fix RTNL lock usage on bnxt_get_port_module_status().
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=1b1bc42c1692e9b62756323c675a44cb1a1f9dbd'>Diffstat</a> (limited to 'net/ipv4/xfrm4_tunnel.c')</div><table summary='diffstat' class='diffstat'>