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PCI: Use PCI Express Capability accessor

Use PCI Express Capability access functions to simplify device
Capabilities Register usages.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Myron Stowe 12 years ago
parent
commit
1c531d82ee
3 changed files with 4 additions and 4 deletions
  1. 2 2
      drivers/pci/access.c
  2. 1 1
      drivers/pci/pcie/portdrv_core.c
  3. 1 1
      include/linux/pci.h

+ 2 - 2
drivers/pci/access.c

@@ -472,7 +472,7 @@ EXPORT_SYMBOL_GPL(pci_cfg_access_unlock);
 
 static inline int pcie_cap_version(const struct pci_dev *dev)
 {
-	return dev->pcie_flags_reg & PCI_EXP_FLAGS_VERS;
+	return pcie_caps_reg(dev) & PCI_EXP_FLAGS_VERS;
 }
 
 static inline bool pcie_cap_has_devctl(const struct pci_dev *dev)
@@ -497,7 +497,7 @@ static inline bool pcie_cap_has_sltctl(const struct pci_dev *dev)
 	return pcie_cap_version(dev) > 1 ||
 	       type == PCI_EXP_TYPE_ROOT_PORT ||
 	       (type == PCI_EXP_TYPE_DOWNSTREAM &&
-		dev->pcie_flags_reg & PCI_EXP_FLAGS_SLOT);
+		pcie_caps_reg(dev) & PCI_EXP_FLAGS_SLOT);
 }
 
 static inline bool pcie_cap_has_rtctl(const struct pci_dev *dev)

+ 1 - 1
drivers/pci/pcie/portdrv_core.c

@@ -272,7 +272,7 @@ static int get_port_device_capability(struct pci_dev *dev)
 
 	/* Hot-Plug Capable */
 	if ((cap_mask & PCIE_PORT_SERVICE_HP) &&
-	    dev->pcie_flags_reg & PCI_EXP_FLAGS_SLOT) {
+	    pcie_caps_reg(dev) & PCI_EXP_FLAGS_SLOT) {
 		pcie_capability_read_dword(dev, PCI_EXP_SLTCAP, &reg32);
 		if (reg32 & PCI_EXP_SLTCAP_HPC) {
 			services |= PCIE_PORT_SERVICE_HP;

+ 1 - 1
include/linux/pci.h

@@ -1707,7 +1707,7 @@ static inline u16 pcie_caps_reg(const struct pci_dev *dev)
  */
 static inline int pci_pcie_type(const struct pci_dev *dev)
 {
-	return (dev->pcie_flags_reg & PCI_EXP_FLAGS_TYPE) >> 4;
+	return (pcie_caps_reg(dev) & PCI_EXP_FLAGS_TYPE) >> 4;
 }
 
 void pci_request_acs(void);