vhost-user-blk: Explicit we ignore few 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:

    CC      s390x-softmmu/hw/block/vhost-user-blk.o
  hw/block/vhost-user-blk.c: In function ‘vhost_user_blk_event’:
  hw/block/vhost-user-blk.c:370:5: error: enumeration value ‘CHR_EVENT_BREAK’ not handled in switch [-Werror=switch]
    370 |     switch (event) {
        |     ^~~~~~
  hw/block/vhost-user-blk.c:370:5: error: enumeration value ‘CHR_EVENT_MUX_IN’ not handled in switch [-Werror=switch]
  hw/block/vhost-user-blk.c:370:5: 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>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191218172009.8868-10-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c
index 63da9bb619ccb30d63fa548d30781d5a610f8cca..ccaf2ad97857344a97d5698e18894e97b77c7a45 100644 (file)
--- a/hw/block/vhost-user-blk.c
+++ b/hw/block/vhost-user-blk.c
@@ -383,6 +383,11 @@ static void vhost_user_blk_event(void *opaque, int event)
             s->watch = 0;
         }
         break;
+    case CHR_EVENT_BREAK:
+    case CHR_EVENT_MUX_IN:
+    case CHR_EVENT_MUX_OUT:
+        /* Ignore */
+        break;
     }
 }