linux-kernel - [PATCH 09/24] init: don't remove the /dev/ prefix from error messages

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Date:   Wed, 31 May 2023 14:55:20 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Mike Snitzer <snitzer@...nel.org>,
        Joern Engel <joern@...ybastard.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Pavel Machek <pavel@....cz>,
        Loic Poulain <loic.poulain@...aro.org>, dm-devel@...hat.com,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-pm@...r.kernel.org
Subject: [PATCH 09/24] init: don't remove the /dev/ prefix from error messages

Remove the code that drops the /dev/ prefix from root_device_name, which
is only used for error messages when mounting the root device fails.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 init/do_mounts.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/init/do_mounts.c b/init/do_mounts.c
index 1405ee7218bf00..74cc96bffbdd71 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -607,8 +607,6 @@ void __init mount_root(char *root_device_name)
  */
 void __init prepare_namespace(void)
 {
-	char *root_device_name;
-
 	if (root_delay) {
 		printk(KERN_INFO "Waiting %d sec before mounting root device...\n",
 		       root_delay);
@@ -627,19 +625,16 @@ void __init prepare_namespace(void)
 	md_run_setup();
 
 	if (saved_root_name[0]) {
-		root_device_name = saved_root_name;
-		if (!strncmp(root_device_name, "mtd", 3) ||
-		    !strncmp(root_device_name, "ubi", 3)) {
-			mount_root_generic(root_device_name, root_device_name,
+		if (!strncmp(saved_root_name, "mtd", 3) ||
+		    !strncmp(saved_root_name, "ubi", 3)) {
+			mount_root_generic(saved_root_name, saved_root_name,
 					   root_mountflags);
 			goto out;
 		}
-		ROOT_DEV = name_to_dev_t(root_device_name);
-		if (strncmp(root_device_name, "/dev/", 5) == 0)
-			root_device_name += 5;
+		ROOT_DEV = name_to_dev_t(saved_root_name);
 	}
 
-	if (initrd_load(root_device_name))
+	if (initrd_load(saved_root_name))
 		goto out;
 
 	/* wait for any asynchronous scanning to complete */
@@ -652,7 +647,7 @@ void __init prepare_namespace(void)
 		async_synchronize_full();
 	}
 
-	mount_root(root_device_name);
+	mount_root(saved_root_name);
 out:
 	devtmpfs_mount();
 	init_mount(".", "/", NULL, MS_MOVE, NULL);
-- 
2.39.2