[PATCH] PCI/IOV: fix building without CONFIG_PCI_IOV

[Arnd Bergmann <arnd@kernel.org>]

From: Arnd Bergmann <arnd@arndb.de>

The newly added code dealing with virtual functions causes
a harmless build warning:

drivers/pci/probe.c: In function 'pci_class':
drivers/pci/probe.c:1902:12: error: unused variable 'rev' [-Werror=unused-variable]

Move the unused variable into the #ifdef block that uses it.

Fixes: 8a2a9fa37b81 ("PCI/IOV: Read VF config values that need not match PF")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/pci/probe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 833ce364f880..1ff07c592857 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1899,9 +1899,9 @@ int pci_cfg_space_size(struct pci_dev *dev)
 static u32 pci_class(struct pci_dev *dev)
 {
 	u32 class;
+#ifdef CONFIG_PCI_IOV
 	u8 rev;
 
-#ifdef CONFIG_PCI_IOV
 	if (dev->is_virtfn) {
 		if (pci_read_config_byte(dev, PCI_REVISION_ID, &rev))
 			rev = 0;
-- 
2.53.0