Re: [PATCH 2/3] qapi, audio: respect build time conditions in audio schema

["Daniel P. Berrangé" <berrange@redhat.com>]

On Tue, Mar 02, 2021 at 01:05:45PM -0600, Eric Blake wrote:
> On 3/2/21 11:55 AM, Daniel P. Berrangé wrote:
> > Currently the -audiodev accepts any audiodev type regardless of what is
> > built in to QEMU. An error only occurs later at runtime when a sound
> > device tries to use the audio backend.
> > 
> > With this change QEMU will immediately reject -audiodev args that are
> > not compiled into the binary. The QMP schema will also be introspectable
> > to identify what is compiled in.
> 
> Nice!
> 
> > 
> > Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
> > ---
> >  audio/audio.c          | 16 +++++++++++++++
> >  audio/audio_legacy.c   | 41 ++++++++++++++++++++++++++++++++++++++-
> >  audio/audio_template.h | 16 +++++++++++++++
> >  qapi/audio.json        | 44 ++++++++++++++++++++++++++++++++----------
> >  4 files changed, 106 insertions(+), 11 deletions(-)
> > 
> 
> > +++ b/qapi/audio.json
> > @@ -386,8 +386,24 @@
> >  # Since: 4.0
> >  ##
> >  { 'enum': 'AudiodevDriver',
> > -  'data': [ 'none', 'alsa', 'coreaudio', 'dsound', 'jack', 'oss', 'pa',
> > -            'sdl', 'spice', 'wav' ] }
> > +  'data': [ 'none',
> > +            { 'name': 'alsa',
> > +              'if': 'defined(CONFIG_AUDIO_ALSA)' },
> > +            { 'name': 'coreaudio',
> > +              'if': 'defined(CONFIG_AUDIO_COREAUDIO)' },
> > +            { 'name': 'dsound',
> > +              'if': 'defined(CONFIG_AUDIO_DSOUND)' },
> > +            { 'name': 'jack',
> > +              'if': 'defined(CONFIG_AUDIO_JACK)' },
> > +            { 'name': 'oss',
> > +              'if': 'defined(CONFIG_AUDIO_OSS)' },
> > +            { 'name': 'pa',
> > +              'if': 'defined(CONFIG_AUDIO_PA)' },
> > +            { 'name': 'sdl',
> > +              'if': 'defined(CONFIG_AUDIO_SDL)' },
> > +            { 'name': 'spice',
> > +              'if': 'defined(CONFIG_SPICE)' },
> > +            'wav' ] }
> 
> I'll trust that you compiled multiple times to test the various
> interplays between options.

No, just sent it through gitlab CI which I assumed would cover it

> 
> Reviewed-by: Eric Blake <eblake@redhat.com>

Regards,
Daniel
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