Em Mon, 02 Mar 2015 17:54:53 +0100
Tycho Lürsen <tycholursen@xxxxxxxxx> escreveu:
> Hi Mauro,
> Op 02-03-15 om 15:31 schreef Mauro Carvalho Chehab:
> > This is really a simple function, but using it avoids to have
> > if's inside the drivers.
> >
> > Also, the kABI becomes a little more clearer.
> >
> > This shouldn't generate any overhead, and the type check
> > will happen when compiling with MC DVB enabled.
> >
> > So, let's do it.
> >
> > Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
> >
> > diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c
> > index c739725ca7ee..367b8e77feb8 100644
> > --- a/drivers/media/common/siano/smsdvb-main.c
> > +++ b/drivers/media/common/siano/smsdvb-main.c
> > @@ -1104,9 +1104,7 @@ static int smsdvb_hotplug(struct smscore_device_t *coredev,
> > pr_err("dvb_register_adapter() failed %d\n", rc);
> > goto adapter_error;
> > }
> > -#ifdef CONFIG_MEDIA_CONTROLLER_DVB
> > - client->adapter.mdev = coredev->media_dev;
> > -#endif
> > + dvb_register_media_controller(&client->adapter, coredev->media_dev);
> >
> > /* init dvb demux */
> > client->demux.dmx.capabilities = DMX_TS_FILTERING;
> > diff --git a/drivers/media/dvb-core/dvbdev.h b/drivers/media/dvb-core/dvbdev.h
> > index 556c9e9d1d4e..12629b8ecb0c 100644
> > --- a/drivers/media/dvb-core/dvbdev.h
> > +++ b/drivers/media/dvb-core/dvbdev.h
> > @@ -125,8 +125,15 @@ extern void dvb_unregister_device (struct dvb_device *dvbdev);
> >
> > #ifdef CONFIG_MEDIA_CONTROLLER_DVB
> > void dvb_create_media_graph(struct dvb_adapter *adap);
> > +static inline void dvb_register_media_controller(struct dvb_adapter *adap,
> > + struct media_device *mdev)
> > +{
> > + adap->mdev = mdev;
> > +}
> > +
> > #else
> > static inline void dvb_create_media_graph(struct dvb_adapter *adap) {}
> > +#define dvb_register_media_controller(a, b) {}
> > #endif
> Does "#define dvb_register_media_controller(a, b) {}" restrict the
> number of registerd controllers in any way?
> I mean, I've got a couple of TBS quad adapters, 4 tuner and 4 demod
> chips on each card. Will they still work with this change?
No. What the above define does is to replace the function call by nothing,
if MEDIA_CONTROLLER_DVB is not set.
Neither it or the current patches for the media controller on DVB should
affect the TBS quad adapters. If you're having some regressions with it,
please report.
Regards,
Mauro
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
