[PATCH v6 2/8] PCI: vmd: Add vmd_configure_cfgbar() helper function

Move the VMD CFGBAR initialization code to a new helper
vmd_configure_cfgbar(). No functional changes.

Suggested-by: Nirmal Patel <[email protected]>
Signed-off-by: Szymon Durawa <[email protected]>
---
 drivers/pci/controller/vmd.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
index 070b247b3fbb..2c824660cabd 100644
--- a/drivers/pci/controller/vmd.c
+++ b/drivers/pci/controller/vmd.c
@@ -771,6 +771,18 @@ static int vmd_pm_enable_quirk(struct pci_dev *pdev, void *userdata)
 	return 0;
 }
 
+static void vmd_configure_cfgbar(struct vmd_dev *vmd)
+{
+	struct resource *res = &vmd->dev->resource[VMD_CFGBAR];
+
+	vmd->resources[0] = (struct resource){
+		.name = "VMD CFGBAR",
+		.start = vmd->busn_start,
+		.end = vmd->busn_start + (resource_size(res) >> 20) - 1,
+		.flags = IORESOURCE_BUS | IORESOURCE_PCI_FIXED,
+	};
+}
+
 static void vmd_bus_enumeration(struct pci_bus *bus, unsigned long features)
 {
 	struct pci_bus *child;
@@ -857,13 +869,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features)
 			return ret;
 	}
 
-	res = &vmd->dev->resource[VMD_CFGBAR];
-	vmd->resources[0] = (struct resource) {
-		.name  = "VMD CFGBAR",
-		.start = vmd->busn_start,
-		.end   = vmd->busn_start + (resource_size(res) >> 20) - 1,
-		.flags = IORESOURCE_BUS | IORESOURCE_PCI_FIXED,
-	};
+	vmd_configure_cfgbar(vmd);
 
 	/*
 	 * If the window is below 4GB, clear IORESOURCE_MEM_64 so we can
-- 
2.43.0