Commit fea4952d authored by Daniel Wagner's avatar Daniel Wagner Committed by Jens Axboe
Browse files

driver core: bus: add irq_get_affinity callback to bus_type 



Introducing a callback in struct bus_type so that a subsystem
can hook up the getters directly. This approach avoids exposing
random getters in any subsystems APIs.

Acked-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
Reviewed-by: default avatarMing Lei <ming.lei@redhat.com>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarDaniel Wagner <wagi@kernel.org>
Link: https://lore.kernel.org/r/20241202-refactor-blk-affinity-helpers-v6-1-27211e9c2cd5@kernel.org


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 0e20669a

include/linux/device/bus.h

+3 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ struct fwnode_handle; 
 *		will never get called until they do.

 * @remove:	Called when a device removed from this bus.

 * @shutdown:	Called at shut-down time to quiesce the device.

 * @irq_get_affinity:	Get IRQ affinity mask for the device on this bus.

 *

 * @online:	Called to put the device back online (after offlining it).

 * @offline:	Called to put the device offline for hot-removal. May fail.
@@ -87,6 +88,8 @@ struct bus_type { 
	void (*sync_state)(struct device *dev);

	void (*remove)(struct device *dev);

	void (*shutdown)(struct device *dev);

	const struct cpumask *(*irq_get_affinity)(struct device *dev,

			unsigned int irq_vec);



	int (*online)(struct device *dev);

	int (*offline)(struct device *dev);