Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH] driver core: change to_subsys_private() to use container_of_const() | Date | Wed, 11 Jan 2023 10:33:27 +0100 |
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The macro to_subsys_private() needs to switch to using container_of_const() as it turned out to being incorrectly casting a const pointer to a non-const one. Make this change and fix up the one offending user to be correctly handling a const pointer properly.
Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/base/base.h | 2 +- drivers/base/class.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/base/base.h b/drivers/base/base.h index 2e08258ce82e..3d1da1027206 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -53,7 +53,7 @@ struct subsys_private { struct kset glue_dirs; struct class *class; }; -#define to_subsys_private(obj) container_of(obj, struct subsys_private, subsys.kobj) +#define to_subsys_private(obj) container_of_const(obj, struct subsys_private, subsys.kobj) struct driver_private { struct kobject kobj; diff --git a/drivers/base/class.c b/drivers/base/class.c index 86ec554cfe60..3366da9c3ff6 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -64,7 +64,7 @@ static void class_release(struct kobject *kobj) static const struct kobj_ns_type_operations *class_child_ns_type(const struct kobject *kobj) { - struct subsys_private *cp = to_subsys_private(kobj); + const struct subsys_private *cp = to_subsys_private(kobj); struct class *class = cp->class; return class->ns_type; -- 2.39.0
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