/*
 * Copyright (C) 2014 Filipe David Borba Manana <fdmanana@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License v2 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.
 */

#include <crypto/hash.h>
#include <linux/err.h>
#include "hash.h"

static struct crypto_shash *tfm;

int __init btrfs_hash_init(void)
{
	tfm = crypto_alloc_shash("crc32c", 0, 0);

	return PTR_ERR_OR_ZERO(tfm);
}

const char* btrfs_crc32c_impl(void)
{
	return crypto_tfm_alg_driver_name(crypto_shash_tfm(tfm));
}

void btrfs_hash_exit(void)
{
	crypto_free_shash(tfm);
}

u32 btrfs_crc32c(u32 crc, const void *address, unsigned int length)
{
	SHASH_DESC_ON_STACK(shash, tfm);
	u32 *ctx = (u32 *)shash_desc_ctx(shash);
	int err;

	shash->tfm = tfm;
	shash->flags = 0;
	*ctx = crc;

	err = crypto_shash_update(shash, address, length);
	BUG_ON(err);

	return *ctx;
}
rivate-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc2/hw.h?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/dwc2/hw.h?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2/hw.h?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/dwc2/hw.h?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc2/hw.h'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'/><select name='qt'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc2?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>dwc2</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc2/hw.h?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf'>hw.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc2/hw.h?h=nds-private-remove&amp;id=e40d5d78df539c0c9b6625cdf5b1bc4b14c4d8bf&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
:</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>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2016-12-25 12:43:07 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2016-12-25 17:21:23 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/trident/Makefile?h=nds-private-remove&amp;id=1f3a8e49d8f28f498b8694464623ac20aebfe62a'>1f3a8e49d8f28f498b8694464623ac20aebfe62a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/pci/trident/Makefile?id=1f3a8e49d8f28f498b8694464623ac20aebfe62a'>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&amp;id=1f3a8e49d8f28f498b8694464623ac20aebfe62a'>da0b5101c3be3e18b55b0a11974f63a3195704f9</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/pci/trident/Makefile?h=nds-private-remove&amp;id=1f3a8e49d8f28f498b8694464623ac20aebfe62a'>sound/pci/trident/Makefile</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/trident/Makefile?h=nds-private-remove&amp;id=8b0e195314fabd58a331c4f7b6db75a1565535d7'>8b0e195314fabd58a331c4f7b6db75a1565535d7</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/trident/Makefile?h=nds-private-remove&amp;id=1f3a8e49d8f28f498b8694464623ac20aebfe62a&amp;id2=8b0e195314fabd58a331c4f7b6db75a1565535d7'>diff</a>)</td></tr></table>
<div class='commit-subject'>ktime: Get rid of ktime_equal()</div><div class='commit-msg'>No point in going through loops and hoops instead of just comparing the
values.

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=1f3a8e49d8f28f498b8694464623ac20aebfe62a'>Diffstat</a> (limited to 'sound/pci/trident/Makefile')</div><table summary='diffstat' class='diffstat'>