Re: [RFC PATCH v2 03/14] hw/char/terminal3270: Explicit ignored QEMUChrEvent in IOEventHandler

[Cornelia Huck]

On Wed, 18 Dec 2019 18:19:58 +0100
Philippe Mathieu-Daudé <address@hidden> wrote:

> 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/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 <address@hidden>
> ---
> v2: Add all missing enums
> 
> Cc: Cornelia Huck <address@hidden>
> Cc: Halil Pasic <address@hidden>
> Cc: Christian Borntraeger <address@hidden>
> Cc: "Marc-André Lureau" <address@hidden>
> Cc: Paolo Bonzini <address@hidden>
> Cc: address@hidden
> ---
>  hw/char/terminal3270.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/hw/char/terminal3270.c b/hw/char/terminal3270.c
> index 6859c1bcb2..2aab04fd4b 100644
> --- a/hw/char/terminal3270.c
> +++ b/hw/char/terminal3270.c
> @@ -166,6 +166,11 @@ static void chr_event(void *opaque, int event)
>          sch->curr_status.scsw.dstat = SCSW_DSTAT_DEVICE_END;
>          css_conditional_io_interrupt(sch);
>          break;
> +    case CHR_EVENT_BREAK:
> +    case CHR_EVENT_MUX_IN:
> +    case CHR_EVENT_MUX_OUT:
> +        /* Ignore */
> +        break;
>      }
>  }
>  

It indeed seems sane to ignore all of these.

Reviewed-by: Cornelia Huck <address@hidden>