// SPDX-License-Identifier: GPL-2.0
#include <linux/cpufreq.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>

extern const struct seq_operations cpuinfo_op;

static int cpuinfo_open(struct inode *inode, struct file *file)
{
        return seq_open(file, &cpuinfo_op);
}

static const struct proc_ops cpuinfo_proc_ops = {
        .proc_flags     = PROC_ENTRY_PERMANENT,
        .proc_open      = cpuinfo_open,
        .proc_read_iter = seq_read_iter,
        .proc_lseek     = seq_lseek,
        .proc_release   = seq_release,
};

static int __init proc_cpuinfo_init(void)
{
        proc_create("cpuinfo", 0, NULL, &cpuinfo_proc_ops);
        return 0;
}
fs_initcall(proc_cpuinfo_init);