[PATCH 2/4] PCI: Make pcie_downstream_port() available outside of access.c

[Kai-Heng Feng]

From: Mika Westerberg <mika.westerberg at linux.intel.com>

BugLink: https://bugs.launchpad.net/bugs/1853991

pcie_downstream_port() is useful in other places where code needs to
determine whether the PCIe port is downstream so make it available outside
of access.c.

Link: https://lore.kernel.org/r/20190822085553.62697-1-mika.westerberg@linux.intel.com
Signed-off-by: Mika Westerberg <mika.westerberg at linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas at google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
(cherry picked from commit 984998e3404e9073479281dbba8af36b104e8c00)
Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
---
 drivers/pci/access.c | 9 ---------
 drivers/pci/pci.h    | 9 +++++++++
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index 544922f097c0..2fccb5762c76 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -336,15 +336,6 @@ static inline int pcie_cap_version(const struct pci_dev *dev)
 	return pcie_caps_reg(dev) & PCI_EXP_FLAGS_VERS;
 }
 
-static bool pcie_downstream_port(const struct pci_dev *dev)
-{
-	int type = pci_pcie_type(dev);
-
-	return type == PCI_EXP_TYPE_ROOT_PORT ||
-	       type == PCI_EXP_TYPE_DOWNSTREAM ||
-	       type == PCI_EXP_TYPE_PCIE_BRIDGE;
-}
-
 bool pcie_cap_has_lnkctl(const struct pci_dev *dev)
 {
 	int type = pci_pcie_type(dev);
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index b66e0af6abff..87f364b642cc 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -113,6 +113,15 @@ static inline bool pci_power_manageable(struct pci_dev *pci_dev)
 	return !pci_has_subordinate(pci_dev) || pci_dev->bridge_d3;
 }
 
+static inline bool pcie_downstream_port(const struct pci_dev *dev)
+{
+	int type = pci_pcie_type(dev);
+
+	return type == PCI_EXP_TYPE_ROOT_PORT ||
+	       type == PCI_EXP_TYPE_DOWNSTREAM ||
+	       type == PCI_EXP_TYPE_PCIE_BRIDGE;
+}
+
 int pci_vpd_init(struct pci_dev *dev);
 void pci_vpd_release(struct pci_dev *dev);
 void pcie_vpd_create_sysfs_dev_files(struct pci_dev *dev);
-- 
2.17.1