Commit 64f79298 authored by Jerry Snitselaar's avatar Jerry Snitselaar Committed by Joerg Roedel
Browse files

iommu/vt-d: Remove device comparison in context_setup_pass_through_cb 

Remove the device comparison check in context_setup_pass_through_cb.
pci_for_each_dma_alias already makes a decision on whether the
callback function should be called for a device. With the check
in place it will fail to create context entries for aliases as
it walks up to the root bus.

Fixes: 2031c469 ("iommu/vt-d: Add support for static identity domain")
Closes: https://lore.kernel.org/linux-iommu/82499eb6-00b7-4f83-879a-e97b4144f576@linux.intel.com/


Cc: stable@vger.kernel.org
Signed-off-by: default avatarJerry Snitselaar <jsnitsel@redhat.com>
Link: https://lore.kernel.org/r/20250224180316.140123-1-jsnitsel@redhat.com


Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent c5b0320b

drivers/iommu/intel/iommu.c

+0 −3
Original line number Diff line number Diff line
@@ -4378,9 +4378,6 @@ static int context_setup_pass_through_cb(struct pci_dev *pdev, u16 alias, void * 
{

	struct device *dev = data;



	if (dev != &pdev->dev)

		return 0;



	return context_setup_pass_through(dev, PCI_BUS_NUM(alias), alias & 0xff);

}