Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * init/noinitramfs.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2006, NXP Semiconductors, All Rights Reserved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Author: Jean-Paul Saman <jean-paul.saman@nxp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kdev_t.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/syscalls.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init_syscalls.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * Create a simple rootfs that is similar to the default initramfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static int __init default_rootfs(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	err = init_mkdir("/dev", 0755);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	err = init_mknod("/dev/console", S_IFCHR | S_IRUSR | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 			new_encode_dev(MKDEV(5, 1)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	err = init_mkdir("/root", 0700);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	printk(KERN_WARNING "Failed to create a rootfs\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) rootfs_initcall(default_rootfs);