Commit 22d813bf authored by Daniel Wagner's avatar Daniel Wagner Committed by Jens Axboe
Browse files

PCI: hookup irq_get_affinity callback 



struct bus_type has a new callback for retrieving the IRQ affinity for a
device. Hook this callback up for PCI based devices.

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>
Reviewed-by: default avatarJohn Garry <john.g.garry@oracle.com>
Signed-off-by: default avatarDaniel Wagner <wagi@kernel.org>
Link: https://lore.kernel.org/r/20241202-refactor-blk-affinity-helpers-v6-2-27211e9c2cd5@kernel.org


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent fea4952d

drivers/pci/pci-driver.c

+14 −0
Original line number Diff line number Diff line
@@ -1670,6 +1670,19 @@ static void pci_dma_cleanup(struct device *dev) 
		iommu_device_unuse_default_domain(dev);

}



/*

 * pci_device_irq_get_affinity - get IRQ affinity mask for device

 * @dev: ptr to dev structure

 * @irq_vec: interrupt vector number

 *

 * Return the CPU affinity mask for @dev and @irq_vec.

 */

static const struct cpumask *pci_device_irq_get_affinity(struct device *dev,

					unsigned int irq_vec)

{

	return pci_irq_get_affinity(to_pci_dev(dev), irq_vec);

}



const struct bus_type pci_bus_type = {

	.name		= "pci",

	.match		= pci_bus_match,
@@ -1677,6 +1690,7 @@ const struct bus_type pci_bus_type = { 
	.probe		= pci_device_probe,

	.remove		= pci_device_remove,

	.shutdown	= pci_device_shutdown,

	.irq_get_affinity = pci_device_irq_get_affinity,

	.dev_groups	= pci_dev_groups,

	.bus_groups	= pci_bus_groups,

	.drv_groups	= pci_drv_groups,