[PATCH -next] xen: Fix a previous prototype warning in xen.c

[Li Heng <liheng40@xxxxxxxxxx>]

Fix the warning:
arch/x86/pci/xen.c:423:13: warning:
no previous prototype for ‘xen_msi_init’ [-Wmissing-prototypes]

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Li Heng <liheng40@xxxxxxxxxx>
---
 arch/x86/pci/xen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 89395a5..f663a5f 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -420,7 +420,7 @@ int __init pci_xen_init(void)
 }

 #ifdef CONFIG_PCI_MSI
-void __init xen_msi_init(void)
+static void __init xen_msi_init(void)
 {
 	if (!disable_apic) {
 		/*
--
2.7.4