Add statics and missing #includes for prototypes.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3683 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/usb-linux.c b/usb-linux.c
index d6a2b8b..d3e4e2e 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -907,10 +907,10 @@
     return p->class_name;
 }
 
-void usb_info_device(int bus_num, int addr, int class_id,
-                     int vendor_id, int product_id,
-                     const char *product_name,
-                     int speed)
+static void usb_info_device(int bus_num, int addr, int class_id,
+                            int vendor_id, int product_id,
+                            const char *product_name,
+                            int speed)
 {
     const char *class_str, *speed_str;