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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 21:24:00 +08:00
linux-next/net/phonet/sysctl.c
Joe Perches fe2c6338fd net: Convert uses of typedef ctl_table to struct ctl_table
Reduce the uses of this unnecessary typedef.

Done via perl script:

$ git grep --name-only -w ctl_table net | \
  xargs perl -p -i -e '\
	sub trim { my ($local) = @_; $local =~ s/(^\s+|\s+$)//g; return $local; } \
        s/\b(?<!struct\s)ctl_table\b(\s*\*\s*|\s+\w+)/"struct ctl_table " . trim($1)/ge'

Reflow the modified lines that now exceed 80 columns.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-13 02:36:09 -07:00

111 lines
2.8 KiB
C

/*
* File: sysctl.c
*
* Phonet /proc/sys/net/phonet interface implementation
*
* Copyright (C) 2008 Nokia Corporation.
*
* Author: Rémi Denis-Courmont
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <linux/seqlock.h>
#include <linux/sysctl.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <net/sock.h>
#include <linux/phonet.h>
#include <net/phonet/phonet.h>
#define DYNAMIC_PORT_MIN 0x40
#define DYNAMIC_PORT_MAX 0x7f
static DEFINE_SEQLOCK(local_port_range_lock);
static int local_port_range_min[2] = {0, 0};
static int local_port_range_max[2] = {1023, 1023};
static int local_port_range[2] = {DYNAMIC_PORT_MIN, DYNAMIC_PORT_MAX};
static struct ctl_table_header *phonet_table_hrd;
static void set_local_port_range(int range[2])
{
write_seqlock(&local_port_range_lock);
local_port_range[0] = range[0];
local_port_range[1] = range[1];
write_sequnlock(&local_port_range_lock);
}
void phonet_get_local_port_range(int *min, int *max)
{
unsigned int seq;
do {
seq = read_seqbegin(&local_port_range_lock);
if (min)
*min = local_port_range[0];
if (max)
*max = local_port_range[1];
} while (read_seqretry(&local_port_range_lock, seq));
}
static int proc_local_port_range(struct ctl_table *table, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
int ret;
int range[2] = {local_port_range[0], local_port_range[1]};
struct ctl_table tmp = {
.data = &range,
.maxlen = sizeof(range),
.mode = table->mode,
.extra1 = &local_port_range_min,
.extra2 = &local_port_range_max,
};
ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
if (write && ret == 0) {
if (range[1] < range[0])
ret = -EINVAL;
else
set_local_port_range(range);
}
return ret;
}
static struct ctl_table phonet_table[] = {
{
.procname = "local_port_range",
.data = &local_port_range,
.maxlen = sizeof(local_port_range),
.mode = 0644,
.proc_handler = proc_local_port_range,
},
{ }
};
int __init phonet_sysctl_init(void)
{
phonet_table_hrd = register_net_sysctl(&init_net, "net/phonet", phonet_table);
return phonet_table_hrd == NULL ? -ENOMEM : 0;
}
void phonet_sysctl_exit(void)
{
unregister_net_sysctl_table(phonet_table_hrd);
}