/*
 * 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;
}
<option value='nds-private-remove' selected='selected'>nds-private-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=2456e855354415bfaeb7badaa14e11b3e02c8466'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/net/netns/dccp.h?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/net/netns/dccp.h?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/net/netns/dccp.h?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/net/netns/dccp.h?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/net/netns/dccp.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net/netns?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>netns</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net/netns/dccp.h?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>dccp.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='2456e855354415bfaeb7badaa14e11b3e02c8466'/><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>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2016-12-25 11:38:40 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2016-12-25 17:21:22 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/netns/dccp.h?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>2456e855354415bfaeb7badaa14e11b3e02c8466</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/net/netns/dccp.h?id=2456e855354415bfaeb7badaa14e11b3e02c8466'>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=2456e855354415bfaeb7badaa14e11b3e02c8466'>6fc81500645174c246c3fdb568cba32aa01960c6</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/net/netns/dccp.h?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466'>include/net/netns/dccp.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/netns/dccp.h?h=nds-private-remove&amp;id=a5a1d1c2914b5316924c7893eb683a5420ebd3be'>a5a1d1c2914b5316924c7893eb683a5420ebd3be</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/net/netns/dccp.h?h=nds-private-remove&amp;id=2456e855354415bfaeb7badaa14e11b3e02c8466&amp;id2=a5a1d1c2914b5316924c7893eb683a5420ebd3be'>diff</a>)</td></tr></table>
<div class='commit-subject'>ktime: Get rid of the union</div><div class='commit-msg'>ktime is a union because the initial implementation stored the time in
scalar nanoseconds on 64 bit machine and in a endianess optimized timespec
variant for 32bit machines. The Y2038 cleanup removed the timespec variant
and switched everything to scalar nanoseconds. The union remained, but
become completely pointless.

Get rid of the union and just keep ktime_t as simple typedef of type s64.

The conversion was done with coccinelle and some manual mopping up.

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=2456e855354415bfaeb7badaa14e11b3e02c8466'>Diffstat</a> (limited to 'include/net/netns/dccp.h')</div><table summary='diffstat' class='diffstat'>