phb_shift can be int

From: Muli Ben-Yehuda <muli@il.ibm.com>

Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/x86_64/kernel/pci-calgary.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

Index: linux/arch/x86_64/kernel/pci-calgary.c
===================================================================
--- linux.orig/arch/x86_64/kernel/pci-calgary.c
+++ linux/arch/x86_64/kernel/pci-calgary.c
@@ -740,7 +740,7 @@ static void __init calgary_increase_spli
 {
 	u64 val64;
 	void __iomem *target;
-	unsigned long phb_shift = -1;
+	unsigned int phb_shift = ~0; /* silence gcc */
 	u64 mask;
 
 	switch (busno_to_phbid(busnum)) {