linux-imx

/*

 * proc sysctl test driver

 *

 * Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License as published by the Free

 * Software Foundation; either version 2 of the License, or at your option any

 * later version; or, when distributed separately from the Linux kernel or

 * when incorporated into other software packages, subject to the following

 * license:

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of copyleft-next (version 0.3.1 or later) as published

 * at http://copyleft-next.org/.

 */

​

/*

 * This module provides an interface to the the proc sysctl interfaces.  This

 * driver requires CONFIG_PROC_SYSCTL. It will not normally be loaded by the

 * system unless explicitly requested by name. You can also build this driver

 * into your kernel.

 */

​

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#include <linux/init.h>

#include <linux/list.h>

#include <linux/module.h>

#include <linux/printk.h>

#include <linux/fs.h>

#include <linux/miscdevice.h>

#include <linux/slab.h>

#include <linux/uaccess.h>

#include <linux/async.h>

#include <linux/delay.h>

#include <linux/vmalloc.h>

​

static int i_zero;

static int i_one_hundred = 100;

​

struct test_sysctl_data {

    int int_0001;

    int int_0002;

    int int_0003[4];

​

    unsigned int uint_0001;

​

    char string_0001[65];

​

#define SYSCTL_TEST_BITMAP_SIZE 65536

    unsigned long *bitmap_0001;

};

​

static struct test_sysctl_data test_data = {

    .int_0001 = 60,

    .int_0002 = 1,

​

    .int_0003[0] = 0,

    .int_0003[1] = 1,

    .int_0003[2] = 2,

    .int_0003[3] = 3,

​