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Revision 7bfeea05d9b1cc75c2d7410b92b7774870688379 authored by Linus Torvalds on 31 January 2011, 02:53:12 UTC, committed by Linus Torvalds on 31 January 2011, 02:53:12 UTC 
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: HDA: Fix automute on Thinkpad L412/L512
  ALSA: HDA: Fix dmesg output of HDMI supported bits
  ALSA: fix invalid hardware.h include in ac97c for AVR32 architecture
  ASoC: correct link specifications for corgi, poodle and spitz
  ASoC: Samsung: Fix outdated cpu_dai_name for s3c24xx i2s
  ASoC: Fix codec device id format used by some dai_links
  ALSA: azt3328 -  fix broken AZF_FMT_XLATE macro
  ALSA: Xonar, CS43xx: Don't overrun static array
  ASoC: Handle low measured DC offsets for wm_hubs devices
  ASoC: da8xx/omap-l1xx: match codec_name with i2c ids
  ASoC: WM8994: fix wrong value in tristate function
  ASoC: WM8995: Fix incorrect use of snd_soc_update_bits()
2 parent s f9a3d1d + dcc3c4c
Raw File
uuid.c 
/*
 * Unified UUID/GUID definition
 *
 * Copyright (C) 2009, Intel Corp.
 *	Huang Ying <ying.huang@intel.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;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/uuid.h>
#include <linux/random.h>

static void __uuid_gen_common(__u8 b[16])
{
	int i;
	u32 r;

	for (i = 0; i < 4; i++) {
		r = random32();
		memcpy(b + i * 4, &r, 4);
	}
	/* reversion 0b10 */
	b[8] = (b[8] & 0x3F) | 0x80;
}

void uuid_le_gen(uuid_le *lu)
{
	__uuid_gen_common(lu->b);
	/* version 4 : random generation */
	lu->b[7] = (lu->b[7] & 0x0F) | 0x40;
}
EXPORT_SYMBOL_GPL(uuid_le_gen);

void uuid_be_gen(uuid_be *bu)
{
	__uuid_gen_common(bu->b);
	/* version 4 : random generation */
	bu->b[6] = (bu->b[6] & 0x0F) | 0x40;
}
EXPORT_SYMBOL_GPL(uuid_be_gen);
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