linux-kernel - [PATCH 4/5] kobject: kset_uevent_ops: make name() callback take a const *

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Message-Id: <20221121094649.1556002-4-gregkh@linuxfoundation.org>
Date:   Mon, 21 Nov 2022 10:46:48 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Subject: [PATCH 4/5] kobject: kset_uevent_ops: make name() callback take a const *

The name() callback in struct kset_uevent_ops does not modify the
kobject passed into it, so make the pointer const to enforce this
restriction.  When doing so, fix up the single existing name() callback
to have the correct signature to preserve the build.

Cc: "Rafael J. Wysocki" <rafael@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/base/core.c     | 4 ++--
 include/linux/kobject.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 005a2b092f3e..a3e14143ec0c 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2376,9 +2376,9 @@ static int dev_uevent_filter(const struct kobject *kobj)
 	return 0;
 }
 
-static const char *dev_uevent_name(struct kobject *kobj)
+static const char *dev_uevent_name(const struct kobject *kobj)
 {
-	struct device *dev = kobj_to_dev(kobj);
+	const struct device *dev = kobj_to_dev(kobj);
 
 	if (dev->bus)
 		return dev->bus->name;
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 640f59d4b3de..58a5b75612e3 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -136,7 +136,7 @@ struct kobj_uevent_env {
 
 struct kset_uevent_ops {
 	int (* const filter)(const struct kobject *kobj);
-	const char *(* const name)(struct kobject *kobj);
+	const char *(* const name)(const struct kobject *kobj);
 	int (* const uevent)(struct kobject *kobj, struct kobj_uevent_env *env);
 };
 
-- 
2.38.1