On Fri, 2016-07-15 at 09:19 +0530, Vinod Koul wrote:
> On Thu, Jul 14, 2016 at 02:56:52PM -0700, Dave Jiang wrote:
> > Adding dmaengine core helper function in order to prep for error
> > reporting.
> >
> > Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
> > ---
> > include/linux/dmaengine.h | 20 ++++++++++++++++++++
> > 1 file changed, 20 insertions(+)
> >
> > diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
> > index 30de019..b601f23 100644
> > --- a/include/linux/dmaengine.h
> > +++ b/include/linux/dmaengine.h
> > @@ -1372,6 +1372,26 @@ static inline int dmaengine_desc_free(struct
> > dma_async_tx_descriptor *desc)
> > return -EPERM;
> > }
> >
> > +struct dma_desc_callback {
>
> can we name this dmaengine_desc_callback. I am avoiding using dma and
> encouraging dmanegine use for new stuff :)
Doh! I did by mistake had it named dmaengine and then went back and
changed all the patches to dma. Guess I'll change it back.
>
> > + dma_async_tx_callback callback;
> > + void *callback_param;
> > +};
> > +
> > +static inline void
> > +dmaengine_desc_get_callback(struct dma_async_tx_descriptor *tx,
> > + struct dma_desc_callback *cb)
> > +{
> > + cb->callback = tx->callback;
> > + cb->callback_param = tx->callback_param;
> > +}
> > +
> > +static inline void
> > +dmaengine_desc_callback_invoke(struct dma_desc_callback *cb, void
> > *result)
> > +{
> > + if (cb->callback)
> > + cb->callback(cb->callback_param);
> > +}
> > +
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