Patch "kobject: modify kobject_get_path() to take a const *" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    kobject: modify kobject_get_path() to take a const *

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     kobject-modify-kobject_get_path-to-take-a-const.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit f2893f113e357be42e59d1a54be64a4f3477eb5e
Author: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date:   Sat Oct 1 18:53:15 2022 +0200

    kobject: modify kobject_get_path() to take a const *
    
    [ Upstream commit 33a0a1e3b3d17445832177981dc7a1c6a5b009f8 ]
    
    kobject_get_path() does not modify the kobject passed to it, so make the
    pointer constant.
    
    Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20221001165315.2690141-1-gregkh@xxxxxxxxxxxxxxxxxxx
    Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    Stable-dep-of: 3bb2a01caa81 ("kobject: Fix slab-out-of-bounds in fill_kobj_path()")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index ea30529fba08a..d38916e598a59 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -116,7 +116,7 @@ extern void kobject_put(struct kobject *kobj);
 extern const void *kobject_namespace(struct kobject *kobj);
 extern void kobject_get_ownership(struct kobject *kobj,
 				  kuid_t *uid, kgid_t *gid);
-extern char *kobject_get_path(struct kobject *kobj, gfp_t flag);
+extern char *kobject_get_path(const struct kobject *kobj, gfp_t flag);
 
 /**
  * kobject_has_children - Returns whether a kobject has children.
diff --git a/lib/kobject.c b/lib/kobject.c
index ea53b30cf4837..94ff7fd5d80bc 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -126,10 +126,10 @@ static int create_dir(struct kobject *kobj)
 	return 0;
 }
 
-static int get_kobj_path_length(struct kobject *kobj)
+static int get_kobj_path_length(const struct kobject *kobj)
 {
 	int length = 1;
-	struct kobject *parent = kobj;
+	const struct kobject *parent = kobj;
 
 	/* walk up the ancestors until we hit the one pointing to the
 	 * root.
@@ -144,9 +144,9 @@ static int get_kobj_path_length(struct kobject *kobj)
 	return length;
 }
 
-static void fill_kobj_path(struct kobject *kobj, char *path, int length)
+static void fill_kobj_path(const struct kobject *kobj, char *path, int length)
 {
-	struct kobject *parent;
+	const struct kobject *parent;
 
 	--length;
 	for (parent = kobj; parent; parent = parent->parent) {
@@ -168,7 +168,7 @@ static void fill_kobj_path(struct kobject *kobj, char *path, int length)
  *
  * Return: The newly allocated memory, caller must free with kfree().
  */
-char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask)
+char *kobject_get_path(const struct kobject *kobj, gfp_t gfp_mask)
 {
 	char *path;
 	int len;