Commit 34be683a authored Jan 11, 2023 by Greg Kroah-Hartman

platform/surface: aggregator: move to_ssam_device() to use container_of_const()

The driver core is changing to pass some pointers as const, so move
to_ssam_device() to use container_of_const() to handle this change.
to_ssam_device() now properly keeps the const-ness of the pointer passed
into it, while as before it could be lost.

Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230111113018.459199-4-gregkh@linuxfoundation.org

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent fa838c8c

include/linux/surface_aggregator/device.h

+1 −4

Original line number	Diff line number	Diff line
		@@ -229,10 +229,7 @@ static inline bool is_ssam_device(struct device *d)
		* Return: Returns a pointer to the &struct ssam_device wrapping the given
		* device @d.
		*/
		static inline struct ssam_device to_ssam_device(struct device d)
		{
		return container_of(d, struct ssam_device, dev);
		}
		#define to_ssam_device(d) container_of_const(d, struct ssam_device, dev)

		/**
		* to_ssam_device_driver() - Casts the given device driver to a SSAM client