Commit 2df418cf authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

driver core: class: remove subsystem private pointer from struct class 



Now that the last users of the subsystem private pointer in struct class
are gone, the pointer can be removed, as no one is using it.  One step
closer to allowing struct class to be const and moved into read-only
memory.

Acked-by: default avatarRafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230331093318.82288-3-gregkh@linuxfoundation.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6f14c022

drivers/base/class.c

+0 −4
Original line number Diff line number Diff line
@@ -97,8 +97,6 @@ static void class_release(struct kobject *kobj) 


	pr_debug("class '%s': release.\n", class->name);



	class->p = NULL;



	if (class->class_release)

		class->class_release(class);

	else
@@ -206,7 +204,6 @@ int class_register(struct class *cls) 
	cp->subsys.kobj.kset = class_kset;

	cp->subsys.kobj.ktype = &class_ktype;

	cp->class = cls;

	cls->p = cp;



	error = kset_register(&cp->subsys);

	if (error)
@@ -222,7 +219,6 @@ int class_register(struct class *cls) 


err_out:

	kfree(cp);

	cls->p = NULL;

	return error;

}

EXPORT_SYMBOL_GPL(class_register);

include/linux/device/class.h

+0 −2
Original line number Diff line number Diff line
@@ -71,8 +71,6 @@ struct class { 
	void (*get_ownership)(const struct device *dev, kuid_t *uid, kgid_t *gid);



	const struct dev_pm_ops *pm;



	struct subsys_private *p;

};



struct class_dev_iter {