From 5ec9039702453c101d5a6146d1d6b59164fe1e1a Mon Sep 17 00:00:00 2001 From: Daniel Wagner Date: Mon, 2 Dec 2024 15:00:09 +0100 Subject: [PATCH] driver core: bus: add irq_get_affinity callback to bus_type [ Upstream commit fea4952df0eeec4e1a295ebaac9f61c0065fae87 ] 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: Bjorn Helgaas Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Ming Lei Acked-by: Greg Kroah-Hartman Signed-off-by: Daniel Wagner Link: https://lore.kernel.org/r/20241202-refactor-blk-affinity-helpers-v6-1-27211e9c2cd5@kernel.org Signed-off-by: Jens Axboe Stable-dep-of: a2d5a0072235 ("scsi: smartpqi: Use is_kdump_kernel() to check for kdump") Signed-off-by: Sasha Levin --- include/linux/device/bus.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h index cdc4757217f9b..b18658bce2c38 100644 --- a/include/linux/device/bus.h +++ b/include/linux/device/bus.h @@ -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);