Fix some warnings that would be generated by gcc -Wmissing-prototypes

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5022 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 3 insertions, 3 deletions

diff --git a/hw/usb-serial.c b/hw/usb-serial.c
index 10772f36cd..92d6dfdd42 100644
--- a/hw/usb-serial.c
+++ b/hw/usb-serial.c
@@ -483,13 +483,13 @@ static void usb_serial_handle_destroy(USBDevice *dev)
     qemu_free(s);
 }
 
-int usb_serial_can_read(void *opaque)
+static int usb_serial_can_read(void *opaque)
 {
     USBSerialState *s = opaque;
     return RECV_BUF - s->recv_used;
 }
 
-void usb_serial_read(void *opaque, const uint8_t *buf, int size)
+static void usb_serial_read(void *opaque, const uint8_t *buf, int size)
 {
     USBSerialState *s = opaque;
     int first_size = RECV_BUF - s->recv_ptr;
@@ -501,7 +501,7 @@ void usb_serial_read(void *opaque, const uint8_t *buf, int size)
     s->recv_used += size;
 }
 
-void usb_serial_event(void *opaque, int event)
+static void usb_serial_event(void *opaque, int event)
 {
     USBSerialState *s = opaque;