[PARISC] Fix compile warning in pci.h

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h
index d0b761f..fa39d07 100644
--- a/include/asm-parisc/pci.h
+++ b/include/asm-parisc/pci.h
@@ -69,7 +69,7 @@
 #define PCI_PORT_HBA(a)		((a) >> HBA_PORT_SPACE_BITS)
 #define PCI_PORT_ADDR(a)	((a) & (HBA_PORT_SPACE_SIZE - 1))
 
-#if CONFIG_64BIT
+#ifdef CONFIG_64BIT
 #define PCI_F_EXTEND		0xffffffff00000000UL
 #define PCI_IS_LMMIO(hba,a)	pci_is_lmmio(hba,a)