6.12-stable review patch. If anyone has any objections, please let me know.
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From: Jerry Snitselaar jsnitsel@redhat.com
commit 64f792981e35e191eb619f6f2fefab76cc7d6112 upstream.
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: 2031c469f816 ("iommu/vt-d: Add support for static identity domain") Closes: https://lore.kernel.org/linux-iommu/82499eb6-00b7-4f83-879a-e97b4144f576@lin... Cc: stable@vger.kernel.org Signed-off-by: Jerry Snitselaar jsnitsel@redhat.com Link: https://lore.kernel.org/r/20250224180316.140123-1-jsnitsel@redhat.com Signed-off-by: Lu Baolu baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel jroedel@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iommu/intel/iommu.c | 3 --- 1 file changed, 3 deletions(-)
--- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -4547,9 +4547,6 @@ static int context_setup_pass_through_cb { struct device *dev = data;
- if (dev != &pdev->dev) - return 0; - return context_setup_pass_through(dev, PCI_BUS_NUM(alias), alias & 0xff); }