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

static int cmdline_proc_show(struct seq_file *m, void *v)
	seq_printf(m, "%s\n", saved_command_line);
	return 0;

static int cmdline_proc_open(struct inode *inode, struct file *file)
	return single_open(file, cmdline_proc_show, NULL);

static const struct file_operations cmdline_proc_fops = {
	.open		= cmdline_proc_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,

static int __init proc_cmdline_init(void)
	proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
	return 0;