346 static int __init mount_nodev_root(char *root_device_name)  in mount_nodev_root()  argument
363 		err = do_mount_root(root_device_name, fstype, root_mountflags,  in mount_nodev_root()
374 static void __init mount_block_root(char *root_device_name)  in mount_block_root()  argument
380 	mount_root_generic("/dev/root", root_device_name, root_mountflags);  in mount_block_root()
383 static inline void mount_block_root(char *root_device_name)  in mount_block_root()  argument
388 void __init mount_root(char *root_device_name)  in mount_root()  argument
398 		mount_root_generic(root_device_name, root_device_name,  in mount_root()
402 		if (root_device_name && root_fs_names &&  in mount_root()
403 		    mount_nodev_root(root_device_name) == 0)  in mount_root()
407 		mount_block_root(root_device_name);  in mount_root()
413 static void __init wait_for_root(char *root_device_name)  in wait_for_root()  argument
420 	pr_info("Waiting for root device %s...\n", root_device_name);  in wait_for_root()
425 	       early_lookup_bdev(root_device_name, &ROOT_DEV) < 0) {  in wait_for_root()
435 static dev_t __init parse_root_device(char *root_device_name)  in parse_root_device()  argument
440 	if (!strncmp(root_device_name, "mtd", 3) ||  in parse_root_device()
441 	    !strncmp(root_device_name, "ubi", 3))  in parse_root_device()
443 	if (strcmp(root_device_name, "/dev/nfs") == 0)  in parse_root_device()
445 	if (strcmp(root_device_name, "/dev/cifs") == 0)  in parse_root_device()
447 	if (strcmp(root_device_name, "/dev/ram") == 0)  in parse_root_device()
450 	error = early_lookup_bdev(root_device_name, &dev);  in parse_root_device()