diff mbox series

[12/14] PCI/P2PDMA: No longer require no-mmu for host bridge whitelist

Message ID 20190722230859.5436-13-logang@deltatee.com
State Superseded
Delegated to: Bjorn Helgaas
Headers show
Series PCI/P2PDMA: Support transactions that hit the host bridge | expand

Commit Message

Logan Gunthorpe July 22, 2019, 11:08 p.m. UTC 
Now that we map the requests correctly we can remove the iommu_present()
restriction.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
 drivers/pci/p2pdma.c | 4 ----
 1 file changed, 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index 76f51678342c..053f9ad59d79 100644
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -18,7 +18,6 @@ 
 #include <linux/percpu-refcount.h>
 #include <linux/random.h>
 #include <linux/seq_buf.h>
-#include <linux/iommu.h>
 #include <linux/xarray.h>
 
 struct pci_p2pdma {
@@ -303,9 +302,6 @@  static bool host_bridge_whitelist(struct pci_dev *a, struct pci_dev *b)
 	struct pci_host_bridge *host_a = pci_find_host_bridge(a->bus);
 	struct pci_host_bridge *host_b = pci_find_host_bridge(b->bus);
 
-	if (iommu_present(a->dev.bus) || iommu_present(b->dev.bus))
-		return false;
-
 	if (host_a == host_b)
 		return __host_bridge_whitelist(host_a, true);