[PATCH v2 07/11] PCI: Use pci_physfn() rather than looking up physfn by hand

[Bjorn Helgaas]

Use the pci_physfn() helper rather than looking up physfn by hand.
No functional change.

Signed-off-by: Bjorn Helgaas <bhelg...@google.com>
Reviewed-by: Joerg Roedel <jroe...@suse.de>
---
 drivers/pci/ats.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c
index 95905f3..0b5b0ed 100644
--- a/drivers/pci/ats.c
+++ b/drivers/pci/ats.c
@@ -42,6 +42,7 @@ void pci_ats_init(struct pci_dev *dev)
 int pci_enable_ats(struct pci_dev *dev, int ps)
 {
        u16 ctrl;
+       struct pci_dev *pdev;
 
        BUG_ON(dev->ats_cap && dev->ats_enabled);
 
@@ -57,8 +58,7 @@ int pci_enable_ats(struct pci_dev *dev, int ps)
         */
        ctrl = PCI_ATS_CTRL_ENABLE;
        if (dev->is_virtfn) {
-               struct pci_dev *pdev = dev->physfn;
-
+               pdev = pci_physfn(dev);
                if (pdev->ats_stu != ps)
                        return -EINVAL;
 
@@ -80,6 +80,7 @@ EXPORT_SYMBOL_GPL(pci_enable_ats);
  */
 void pci_disable_ats(struct pci_dev *dev)
 {
+       struct pci_dev *pdev;
        u16 ctrl;
 
        BUG_ON(!dev->ats_cap || !dev->ats_enabled);
@@ -88,8 +89,7 @@ void pci_disable_ats(struct pci_dev *dev)
                return;         /* VFs still enabled */
 
        if (dev->is_virtfn) {
-               struct pci_dev *pdev = dev->physfn;
-
+               pdev = pci_physfn(dev);
                atomic_dec(&pdev->ats_ref_cnt);
        }
 

_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu