PCI: Remove fixed parameter in pci_iov_resource_bar()

pci_iov_resource_bar() always sets its 'pci_bar_type' parameter to
'pci_bar_unknown'.  Drop the parameter and just use 'pci_bar_unknown'
directly in the callers.

No functional change intended.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Chris Wright <chrisw@sous-sol.org>
CC: Yu Zhao <yuzhao@google.com>

drivers/pci/iov.c

@@ -479,20 +479,16 @@ void pci_iov_release(struct pci_dev *dev)
  * pci_iov_resource_bar - get position of the SR-IOV BAR
  * @dev: the PCI device
  * @resno: the resource number
- * @type: the BAR type to be filled in
  *
  * Returns position of the BAR encapsulated in the SR-IOV capability.
  */
-int pci_iov_resource_bar(struct pci_dev *dev, int resno,
-			 enum pci_bar_type *type)
+int pci_iov_resource_bar(struct pci_dev *dev, int resno)
 {
 	if (resno < PCI_IOV_RESOURCES || resno > PCI_IOV_RESOURCE_END)
 		return 0;
 
 	BUG_ON(!dev->is_physfn);
 
-	*type = pci_bar_unknown;
-
 	return dev->sriov->pos + PCI_SRIOV_BAR +
 		4 * (resno - PCI_IOV_RESOURCES);
 }
@@ -510,13 +506,12 @@ int pci_iov_resource_bar(struct pci_dev *dev, int resno,
 resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno)
 {
 	struct resource tmp;
-	enum pci_bar_type type;
-	int reg = pci_iov_resource_bar(dev, resno, &type);
+	int reg = pci_iov_resource_bar(dev, resno);
 
 	if (!reg)
 		return 0;
 
-	 __pci_read_base(dev, type, &tmp, reg);
+	 __pci_read_base(dev, pci_bar_unknown, &tmp, reg);
 	return resource_alignment(&tmp);
 }
 

drivers/pci/pci.c

@@ -4180,7 +4180,8 @@ int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type)
 		return dev->rom_base_reg;
 	} else if (resno < PCI_BRIDGE_RESOURCES) {
 		/* device specific resource */
-		reg = pci_iov_resource_bar(dev, resno, type);
+		*type = pci_bar_unknown;
+		reg = pci_iov_resource_bar(dev, resno);
 		if (reg)
 			return reg;
 	}

drivers/pci/pci.h

@@ -251,8 +251,7 @@ static inline void pci_restore_ats_state(struct pci_dev *dev)
 #ifdef CONFIG_PCI_IOV
 int pci_iov_init(struct pci_dev *dev);
 void pci_iov_release(struct pci_dev *dev);
-int pci_iov_resource_bar(struct pci_dev *dev, int resno,
-			 enum pci_bar_type *type);
+int pci_iov_resource_bar(struct pci_dev *dev, int resno);
 resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
 void pci_restore_iov_state(struct pci_dev *dev);
 int pci_iov_bus_range(struct pci_bus *bus);
@@ -266,8 +265,7 @@ static inline void pci_iov_release(struct pci_dev *dev)
 
 {
 }
-static inline int pci_iov_resource_bar(struct pci_dev *dev, int resno,
-				       enum pci_bar_type *type)
+static inline int pci_iov_resource_bar(struct pci_dev *dev, int resno)
 {
 	return 0;
 }