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-rw-r--r--hw/usb-serial.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/hw/usb-serial.c b/hw/usb-serial.c
index 10772f36c..92d6dfdd4 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;