Re: [RFC PATCH 13/14] hw/char/terminal3270: Explicit ignored QEMUChrEvent in IOEventHandler

[Markus Armbruster <armbru@redhat.com>]

Philippe Mathieu-Daudé <philmd@redhat.com> writes:

> 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:
>
>     CC      s390x-softmmu/hw/char/terminal3270.o
>   hw/char/terminal3270.c: In function ‘chr_event’:
>   hw/char/terminal3270.c:156:5: error: enumeration value ‘CHR_EVENT_BREAK’ not handled in switch [-Werror=switch]
>     156 |     switch (event) {
>         |     ^~~~~~
>   hw/char/terminal3270.c:156:5: error: enumeration value ‘CHR_EVENT_MUX_IN’ not handled in switch [-Werror=switch]
>   hw/char/terminal3270.c:156:5: 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>
> ---
> Cc: Cornelia Huck <cohuck@redhat.com>
> Cc: Halil Pasic <pasic@linux.ibm.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: qemu-s390x@nongnu.org
> ---
>  hw/char/terminal3270.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/hw/char/terminal3270.c b/hw/char/terminal3270.c
> index 6859c1bcb2..9e59a2d92b 100644
> --- a/hw/char/terminal3270.c
> +++ b/hw/char/terminal3270.c
> @@ -166,6 +166,9 @@ static void chr_event(void *opaque, int event)
>          sch->curr_status.scsw.dstat = SCSW_DSTAT_DEVICE_END;
>          css_conditional_io_interrupt(sch);
>          break;
> +    default:
> +        /* Ignore */
> +        break;
>      }
>  }

I doubt the /* Ignore */ comment is worth its keep.

Splitting PATCH 02-13 feels excessive to me.