[RFC PATCH 06/14] hw/usb/dev-serial: Explicit we ignore few QEMUChrEvent in IOEventHandler

[Philippe Mathieu-Daudé]

The Chardev events are listed in the QEMUChrEvent enum. To be
able to use this enum in the IOEventHandler typedef, we need to
explicit when frontends ignore some events, to silent GCC the
following warnings:

  hw/usb/dev-serial.c: In function ‘usb_serial_event’:
  hw/usb/dev-serial.c:468:5: error: enumeration value ‘CHR_EVENT_MUX_IN’ not 
handled in switch [-Werror=switch]
    468 |     switch (event) {
        |     ^~~~~~
  hw/usb/dev-serial.c:468:5: error: enumeration value ‘CHR_EVENT_MUX_OUT’ not 
handled in switch [-Werror=switch]
  cc1: all warnings being treated as errors

Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
Cc: Gerd Hoffmann <address@hidden>
Cc: Samuel Thibault <address@hidden>
---
 hw/usb/dev-serial.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c
index 45cc74128a..497f932a5a 100644
--- a/hw/usb/dev-serial.c
+++ b/hw/usb/dev-serial.c
@@ -479,6 +479,9 @@ static void usb_serial_event(void *opaque, int event)
                 usb_device_detach(&s->dev);
             }
             break;
+        default:
+            /* Ignore */
+            break;
     }
 }
 
-- 
2.21.0