diff mbox series

[15/23] iommu/amd: Prepare for multiple DMA domain types

Message ID 933496cfa22214e99bc8d48d62bdef112b44c80f.1626888445.git.robin.murphy@arm.com (mailing list archive)
State New, archived
Headers show
Series iommu: Refactor DMA domain strictness | expand

Commit Message

Robin Murphy July 21, 2021, 6:20 p.m. UTC 
The DMA ops setup can simply be unconditional, since iommu-dma
already knows not to touch identity domains.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 drivers/iommu/amd/iommu.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 40ae7130fc80..1e992ef21f34 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1707,14 +1707,9 @@  static struct iommu_device *amd_iommu_probe_device(struct device *dev)
 
 static void amd_iommu_probe_finalize(struct device *dev)
 {
-	struct iommu_domain *domain;
-
 	/* Domains are initialized for this device - have a look what we ended up with */
-	domain = iommu_get_domain_for_dev(dev);
-	if (domain->type == IOMMU_DOMAIN_DMA)
-		iommu_setup_dma_ops(dev, 0, U64_MAX);
-	else
-		set_dma_ops(dev, NULL);
+	set_dma_ops(dev, NULL);
+	iommu_setup_dma_ops(dev, 0, U64_MAX);
 }
 
 static void amd_iommu_release_device(struct device *dev)