[RFC PATCH 07/14] ccid-card-passthru: Explicit we ignore 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/ccid-card-passthru.c: In function ‘ccid_card_vscard_event’:
  hw/usb/ccid-card-passthru.c:314:5: error: enumeration value 
‘CHR_EVENT_MUX_IN’ not handled in switch [-Werror=switch]
    314 |     switch (event) {
        |     ^~~~~~
  hw/usb/ccid-card-passthru.c:314:5: error: enumeration value 
‘CHR_EVENT_MUX_OUT’ not handled in switch [-Werror=switch]
  hw/usb/ccid-card-passthru.c:314:5: error: enumeration value 
‘CHR_EVENT_CLOSED’ 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>
---
 hw/usb/ccid-card-passthru.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/usb/ccid-card-passthru.c b/hw/usb/ccid-card-passthru.c
index 267ed9a8a0..190f268da2 100644
--- a/hw/usb/ccid-card-passthru.c
+++ b/hw/usb/ccid-card-passthru.c
@@ -318,6 +318,9 @@ static void ccid_card_vscard_event(void *opaque, int event)
     case CHR_EVENT_OPENED:
         DPRINTF(card, D_INFO, "%s: CHR_EVENT_OPENED\n", __func__);
         break;
+    default:
+        /* Ignore */
+        break;
     }
 }
 
-- 
2.21.0