linux-imx

// SPDX-License-Identifier: GPL-2.0

#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__

​

#ifdef CONFIG_PROC_FS

#include <linux/errno.h>

#include <linux/kernel.h>

#include <linux/string.h>

#include <linux/mm.h>

#include <linux/module.h>

#include <linux/proc_fs.h>

#include <linux/ktime.h>

#include <linux/seq_file.h>

#include <linux/uaccess.h>

#include <linux/atmmpc.h>

#include <linux/atm.h>

#include <linux/gfp.h>

#include "mpc.h"

#include "mpoa_caches.h"

​

/*

 * mpoa_proc.c: Implementation MPOA client's proc

 * file system statistics

 */

​

#if 1

#define dprintk(format, args...)                    \

    printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args)  /* debug */

#else

#define dprintk(format, args...)                    \

    do { if (0)                         \

        printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args);\

    } while (0)

#endif

​

#if 0

#define ddprintk(format, args...)                   \

    printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args)  /* debug */

#else

#define ddprintk(format, args...)                   \

    do { if (0)                         \

        printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args);\

    } while (0)

#endif

​

#define STAT_FILE_NAME "mpc"     /* Our statistic file's name */

​

extern struct mpoa_client *mpcs;

extern struct proc_dir_entry *atm_proc_root;  /* from proc.c. */

​

static int proc_mpc_open(struct inode *inode, struct file *file);

static ssize_t proc_mpc_write(struct file *file, const char __user *buff,

                  size_t nbytes, loff_t *ppos);

​

static int parse_qos(const char *buff);

​

/*

 *   Define allowed FILE OPERATIONS

 */

static const struct file_operations mpc_file_operations = {

    .open =     proc_mpc_open,

    .read =     seq_read,

    .llseek =   seq_lseek,

    .write =    proc_mpc_write,