On Fri, 2020-06-26 at 10:52 +0100, Robin Murphy wrote:
> Hi Ezequiel,
>
> On 2020-06-25 17:35, Ezequiel Garcia wrote:
> > So far we've been using the .buf_finish hook to distinguish
> > decoder from encoder. This is unnecessarily obfuscated.
> >
> > Moreover, we want to move the buf_finish, so use a cleaner
> > scheme to distinguish the driver decoder/encoder type.
> >
> > Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
> > ---
> > drivers/staging/media/hantro/hantro.h | 2 ++
> > drivers/staging/media/hantro/hantro_drv.c | 4 +++-
> > 2 files changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h
> > index 3005207fc6fb..028b788ad50f 100644
> > --- a/drivers/staging/media/hantro/hantro.h
> > +++ b/drivers/staging/media/hantro/hantro.h
> > @@ -199,6 +199,7 @@ struct hantro_dev {
> > *
> > * @dev: VPU driver data to which the context belongs.
> > * @fh: V4L2 file handler.
> > + * @is_encoder: Decoder or encoder context?
> > *
> > * @sequence_cap: Sequence counter for capture queue
> > * @sequence_out: Sequence counter for output queue
> > @@ -223,6 +224,7 @@ struct hantro_dev {
> > struct hantro_ctx {
> > struct hantro_dev *dev;
> > struct v4l2_fh fh;
> > + bool is_encoder;
> >
> > u32 sequence_cap;
> > u32 sequence_out;
> > diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
> > index 0db8ad455160..112ed556eb90 100644
> > --- a/drivers/staging/media/hantro/hantro_drv.c
> > +++ b/drivers/staging/media/hantro/hantro_drv.c
> > @@ -197,7 +197,7 @@ static void device_run(void *priv)
> >
> > bool hantro_is_encoder_ctx(const struct hantro_ctx *ctx)
> > {
> > - return ctx->buf_finish == hantro_enc_buf_finish;
> > + return ctx->is_encoder;
>
> FWIW I'd suggest removing the wrapper function entirely now - it makes
> sense when the check itself is implemented in a weird and non-obvious
> way, but a simple boolean flag named exactly what it means is already
> about as clear as it can get.
>
Indeed, Philipp pointed out the same thing.
Makes perfect sense, and thanks a lot for reviewing.
Ezequiel
