[PATCH] mmconfig: minor cleanup in mmconfig code

This just cleans up.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h
index 0270c80..2ce3d44 100644
--- a/arch/i386/pci/pci.h
+++ b/arch/i386/pci/pci.h
@@ -96,7 +96,9 @@
 
 /* pci-mmconfig.c */
 
+/* Verify the first 16 busses. We assume that systems with more busses
+   get MCFG right. */
 #define PCI_MMCFG_MAX_CHECK_BUS 16
 extern DECLARE_BITMAP(pci_mmcfg_fallback_slots, 32*PCI_MMCFG_MAX_CHECK_BUS);
 
-extern int pci_mmcfg_arch_init(void);
+extern int __init pci_mmcfg_arch_init(void);