/*
 *  net/dccp/sysctl.c
 *
 *  An implementation of the DCCP protocol
 *  Arnaldo Carvalho de Melo <acme@mandriva.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.
 */

#include <linux/mm.h>
#include <linux/sysctl.h>
#include "dccp.h"
#include "feat.h"

#ifndef CONFIG_SYSCTL
#error This file should not be compiled without CONFIG_SYSCTL defined
#endif

/* Boundary values */
static int		zero     = 0,
			one      = 1,
			u8_max   = 0xFF;
static unsigned long	seqw_min = DCCPF_SEQ_WMIN,
			seqw_max = 0xFFFFFFFF;		/* maximum on 32 bit */

static struct ctl_table dccp_default_table[] = {
	{
		.procname	= "seq_window",
		.data		= &sysctl_dccp_sequence_window,
		.maxlen		= sizeof(sysctl_dccp_sequence_window),
		.mode		= 0644,
		.proc_handler	= proc_doulongvec_minmax,
		.extra1		= &seqw_min,		/* RFC 4340, 7.5.2 */
		.extra2		= &seqw_max,
	},
	{
		.procname	= "rx_ccid",
		.data		= &sysctl_dccp_rx_ccid,
		.maxlen		= sizeof(sysctl_dccp_rx_ccid),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
		.extra2		= &u8_max,		/* RFC 4340, 10. */
	},
	{
		.procname	= "tx_ccid",
		.data		= &sysctl_dccp_tx_ccid,
		.maxlen		= sizeof(sysctl_dccp_tx_ccid),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
		.extra2		= &u8_max,		/* RFC 4340, 10. */
	},
	{
		.procname	= "request_retries",
		.data		= &sysctl_dccp_request_retries,
		.maxlen		= sizeof(sysctl_dccp_request_retries),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &one,
		.extra2		= &u8_max,
	},
	{
		.procname	= "retries1",
		.data		= &sysctl_dccp_retries1,
		.maxlen		= sizeof(sysctl_dccp_retries1),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
		.extra2		= &u8_max,
	},
	{
		.procname	= "retries2",
		.data		= &sysctl_dccp_retries2,
		.maxlen		= sizeof(sysctl_dccp_retries2),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
		.extra2		= &u8_max,
	},
	{
		.procname	= "tx_qlen",
		.data		= &sysctl_dccp_tx_qlen,
		.maxlen		= sizeof(sysctl_dccp_tx_qlen),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
	},
	{
		.procname	= "sync_ratelimit",
		.data		= &sysctl_dccp_sync_ratelimit,
		.maxlen		= sizeof(sysctl_dccp_sync_ratelimit),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_ms_jiffies,
	},

	{ }
};

static struct ctl_table_header *dccp_table_header;

int __init dccp_sysctl_init(void)
{
	dccp_table_header = register_net_sysctl(&init_net, "net/dccp/default",
			dccp_default_table);

	return dccp_table_header != NULL ? 0 : -ENOMEM;
}

void dccp_sysctl_exit(void)
{
	if (dccp_table_header != NULL) {
		unregister_net_sysctl_table(dccp_table_header);
		dccp_table_header = NULL;
	}
}
/net?id=33e962c8871f015f5c8978384553dddcf5b81b22'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc?id=33e962c8871f015f5c8978384553dddcf5b81b22'>sunrpc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma?id=33e962c8871f015f5c8978384553dddcf5b81b22'>xprtrdma</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma/Makefile?id=33e962c8871f015f5c8978384553dddcf5b81b22'>Makefile</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='33e962c8871f015f5c8978384553dddcf5b81b22'/><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>Stanislaw Gruszka &lt;sgruszka@redhat.com&gt;</td><td class='right'>2017-01-29 12:40:52 +0100</td></tr>
<tr><th>committer</th><td>Kalle Valo &lt;kvalo@codeaurora.org&gt;</td><td class='right'>2017-01-31 09:08:52 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma/Makefile?id=33e962c8871f015f5c8978384553dddcf5b81b22'>33e962c8871f015f5c8978384553dddcf5b81b22</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/sunrpc/xprtrdma/Makefile?id=33e962c8871f015f5c8978384553dddcf5b81b22'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=33e962c8871f015f5c8978384553dddcf5b81b22'>43aff96c2ee21d9e0fa2018457778a4de52053cd</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/sunrpc/xprtrdma/Makefile?id=33e962c8871f015f5c8978384553dddcf5b81b22'>net/sunrpc/xprtrdma/Makefile</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma/Makefile?id=575ddce0507789bf9830d089557d2199d2f91865'>575ddce0507789bf9830d089557d2199d2f91865</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/sunrpc/xprtrdma/Makefile?id=33e962c8871f015f5c8978384553dddcf5b81b22&amp;id2=575ddce0507789bf9830d089557d2199d2f91865'>diff</a>)</td></tr></table>
<div class='commit-subject'>rt2x00: fix clk_get call</div><div class='commit-msg'>clk_get() takes two arguments and might return ERR_PTR(), so we
have to nullify pointer on that case, to do not break further call
to clk_get_rate().

Reported-by: Felix Fietkau &lt;nbd@nbd.name&gt;
Fixes: 34db70b92fae ("rt2x00: add copy of clk for soc devices")
Signed-off-by: Stanislaw Gruszka &lt;sgruszka@redhat.com&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=33e962c8871f015f5c8978384553dddcf5b81b22'>Diffstat</a> (limited to 'net/sunrpc/xprtrdma/Makefile')</div><table summary='diffstat' class='diffstat'>