/*
 * Keyed 32-bit hash function using TEA in a Davis-Meyer function
 *   H0 = Key
 *   Hi = E Mi(Hi-1) + Hi-1
 *
 * (see Applied Cryptography, 2nd edition, p448).
 *
 * Jeremy Fitzhardinge <jeremy@zip.com.au> 1998
 *
 * Jeremy has agreed to the contents of reiserfs/README. -Hans
 * Yura's function is added (04/07/2000)
 */

#include <linux/kernel.h>
#include "reiserfs.h"
#include <asm/types.h>

#define DELTA 0x9E3779B9
#define FULLROUNDS 10		/* 32 is overkill, 16 is strong crypto */
#define PARTROUNDS 6		/* 6 gets complete mixing */

/* a, b, c, d - data; h0, h1 - accumulated hash */
#define TEACORE(rounds)							\
	do {								\
		u32 sum = 0;						\
		int n = rounds;						\
		u32 b0, b1;						\
									\
		b0 = h0;						\
		b1 = h1;						\
									\
		do							\
		{							\
			sum += DELTA;					\
			b0 += ((b1 << 4)+a) ^ (b1+sum) ^ ((b1 >> 5)+b);	\
			b1 += ((b0 << 4)+c) ^ (b0+sum) ^ ((b0 >> 5)+d);	\
		} while(--n);						\
									\
		h0 += b0;						\
		h1 += b1;						\
	} while(0)

u32 keyed_hash(const signed char *msg, int len)
{
	u32 k[] = { 0x9464a485, 0x542e1a94, 0x3e846bff, 0xb75bcfc3 };

	u32 h0 = k[0], h1 = k[1];
	u32 a, b, c, d;
	u32 pad;
	int i;

	/*      assert(len >= 0 && len < 256); */

	pad = (u32) len | ((u32) len << 8);
	pad |= pad << 16;

	while (len >= 16) {
		a = (u32) msg[0] |
		    (u32) msg[1] << 8 | (u32) msg[2] << 16 | (u32) msg[3] << 24;
		b = (u32) msg[4] |
		    (u32) msg[5] << 8 | (u32) msg[6] << 16 | (u32) msg[7] << 24;
		c = (u32) msg[8] |
		    (u32) msg[9] << 8 |
		    (u32) msg[10] << 16 | (u32) msg[11] << 24;
		d = (u32) msg[12] |
		    (u32) msg[13] << 8 |
		    (u32) msg[14] << 16 | (u32) msg[15] << 24;

		TEACORE(PARTROUNDS);

		len -= 16;
		msg += 16;
	}

	if (len >= 12) {
		a = (u32) msg[0] |
		    (u32) msg[1] << 8 | (u32) msg[2] << 16 | (u32) msg[3] << 24;
		b = (u32) msg[4] |
		    (u32) msg[5] << 8 | (u32) msg[6] << 16 | (u32) msg[7] << 24;
		c = (u32) msg[8] |
		    (u32) msg[9] << 8 |
		    (u32) msg[10] << 16 | (u32) msg[11] << 24;

		d = pad;
		for (i = 12; i < len; i++) {
			d <<= 8;
			d |= msg[i];
		}
	} else if (len >= 8) {
		a = (u32) msg[0] |
		    (u32) msg[1] << 8 | (u32) msg[2] << 16 | (u32) msg[3] << 24;
		b = (u32) msg[4] |
		    (u32) msg[5] << 8 | (u32) msg[6] << 16 | (u32) msg[7] << 24;

		c = d = pad;
		for (i = 8; i < len; i++) {
			c <<= 8;
			c |= msg[i];
		}
	} else if (len >= 4) {
		a = (u32) msg[0] |
		    (u32) msg[1] << 8 | (u32) msg[2] << 16 | (u32) msg[3] << 24;

		b = c = d = pad;
		for (i = 4; i < len; i++) {
			b <<= 8;
			b |= msg[i];
		}
	} else {
		a = b = c = d = pad;
		for (i = 0; i < len; i++) {
			a <<= 8;
			a |= msg[i];
		}
	}

	TEACORE(FULLROUNDS);

/*	return 0;*/
	return h0 ^ h1;
}

/*
 * What follows in this file is copyright 2000 by Hans Reiser, and the
 * licensing of what follows is governed by reiserfs/README
 */
u32 yura_hash(const signed char *msg, int len)
{
	int j, pow;
	u32 a, c;
	int i;

	for (pow = 1, i = 1; i < len; i++)
		pow = pow * 10;

	if (len == 1)
		a = msg[0] - 48;
	else
		a = (msg[0] - 48) * pow;

	for (i = 1; i < len; i++) {
		c = msg[i] - 48;
		for (pow = 1, j = i; j < len - 1; j++)
			pow = pow * 10;
		a = a + c * pow;
	}

	for (; i < 40; i++) {
		c = '0' - 48;
		for (pow = 1, j = i; j < len - 1; j++)
			pow = pow * 10;
		a = a + c * pow;
	}

	for (; i < 256; i++) {
		c = i;
		for (pow = 1, j = i; j < len - 1; j++)
			pow = pow * 10;
		a = a + c * pow;
	}

	a = a << 7;
	return a;
}

u32 r5_hash(const signed char *msg, int len)
{
	u32 a = 0;
	while (*msg) {
		a += *msg << 4;
		a += *msg >> 4;
		a *= 11;
		msg++;
	}
	return a;
}
'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>Tobias Klauser &lt;tklauser@distanz.ch&gt;</td><td class='right'>2016-10-20 15:44:19 +0200</td></tr>
<tr><th>committer</th><td>Tobias Klauser &lt;tklauser@distanz.ch&gt;</td><td class='right'>2017-02-15 10:34:18 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/hwmon/sch5636?h=nds-private-remove&amp;id=5db4992d8f040b8d8db0b86d42806e0c417f7ccf'>5db4992d8f040b8d8db0b86d42806e0c417f7ccf</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation/hwmon/sch5636?id=5db4992d8f040b8d8db0b86d42806e0c417f7ccf'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove'>5b06e952af482d45f3ade64e77824662e34b7fa2</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation/hwmon/sch5636?h=nds-private-remove'>Documentation/hwmon/sch5636</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/hwmon/sch5636?h=nds-private-remove&amp;id=370ebb0ef6255132373ed35d13e7b1d8d2eb7003'>370ebb0ef6255132373ed35d13e7b1d8d2eb7003</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/hwmon/sch5636?h=nds-private-remove&amp;id2=370ebb0ef6255132373ed35d13e7b1d8d2eb7003'>diff</a>)</td></tr></table>
<div class='commit-subject'>usbnet: pegasus: Use net_device_stats from struct net_device<span class='decoration'><a class='branch-deco' href='/cgit.cgi/linux/net-next.git/log/Documentation/hwmon/sch5636?h=nds-private-remove'>nds-private-remove</a></span></div><div class='commit-msg'>Instead of using a private copy of struct net_device_stats in struct
pegasus, use stats from struct net_device. Also remove the now
unnecessary .ndo_get_stats function.

Cc: Petko Manolov &lt;petkan@nucleusys.com&gt;
Cc: linux-usb@vger.kernel.org
Signed-off-by: Tobias Klauser &lt;tklauser@distanz.ch&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove'>Diffstat</a> (limited to 'Documentation/hwmon/sch5636')</div><table summary='diffstat' class='diffstat'>