[v1] chardev: Use QEMUChrEvent enum in IOEventHandler typedef

[RFC PATCH 07/14] ccid-card-passthru: Explicit we ignore QEMUChrEvent in IOEventHandler

Philippe Mathieu-Daudé posted 14 patches 6 years, 1 month ago

Diff against v2
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Maintainers: Samuel Thibault <samuel.thibault@ens-lyon.org>, Halil Pasic <pasic@linux.ibm.com>, "Philippe Mathieu-Daudé" <philmd@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Joel Stanley <joel@jms.id.au>, Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>, Gerd Hoffmann <kraxel@redhat.com>, Igor Mitsyanko <i.mitsyanko@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>, Corey Minyard <minyard@acm.org>, Amit Shah <amit@kernel.org>, Sagar Karandikar <sagark@eecs.berkeley.edu>, Paul Burton <pburton@wavecomp.com>, Fabien Chouteau <chouteau@adacore.com>, Peter Chubb <peter.chubb@nicta.com.au>, Aleksandar Markovic <amarkovic@wavecomp.com>, Michael Walle <michael@walle.cc>, Jason Wang <jasowang@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>, Peter Maydell <peter.maydell@linaro.org>, KONRAD Frederic <frederic.konrad@adacore.com>, "Michael S. Tsirkin" <mst@redhat.com>, Max Reitz <mreitz@redhat.com>, Markus Armbruster <armbru@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Antony Pavlov <antonynpavlov@gmail.com>, Alberto Garcia <berto@igalia.com>, Zhang Chen <chen.zhang@intel.com>, Li Zhijian <lizhijian@cn.fujitsu.com>, Alistair Francis <alistair@alistair23.me>, "Gonglei (Arei)" <arei.gonglei@huawei.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Andrzej Zaborowski <balrogg@gmail.com>, Christian Borntraeger <borntraeger@de.ibm.com>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, Cornelia Huck <cohuck@redhat.com>, Thomas Huth <huth@tuxfamily.org>, Laurent Vivier <lvivier@redhat.com>

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[RFC PATCH 07/14] ccid-card-passthru: Explicit we ignore QEMUChrEvent in IOEventHandler

Posted by Philippe Mathieu-Daudé 6 years, 1 month ago

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 <philmd@redhat.com>
---
Cc: Gerd Hoffmann <kraxel@redhat.com>
---
 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