chardev/char: Explicit we ignore some QEMUChrEvent in IOEventHandler

The Chardev events are listed in the QEMUChrEvent enum. To be
able to use this enum in the IOEventHandler typedef, we need to
explicit all the events ignored by this frontend, to silent the
following GCC warning:

  chardev/char.c: In function ‘qemu_chr_be_event’:
  chardev/char.c:65:5: error: enumeration value ‘CHR_EVENT_BREAK’ not handled in switch [-Werror=switch]
     65 |     switch (event) {
        |     ^~~~~~
  chardev/char.c:65:5: error: enumeration value ‘CHR_EVENT_MUX_IN’ not handled in switch [-Werror=switch]
  chardev/char.c:65:5: 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 <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191218172009.8868-14-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/chardev/char.c b/chardev/char.c
index 7b6b2cb12300042c6adf257e188c14e4df1378bf..739da1155bf76e36c9af6620a38ed94d765257ca 100644 (file)
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -69,6 +69,11 @@ void qemu_chr_be_event(Chardev *s, int event)
         case CHR_EVENT_CLOSED:
             s->be_open = 0;
             break;
+    case CHR_EVENT_BREAK:
+    case CHR_EVENT_MUX_IN:
+    case CHR_EVENT_MUX_OUT:
+        /* Ignore */
+        break;
     }
 
     CHARDEV_GET_CLASS(s)->chr_be_event(s, event);