Re: [PATCHv2 8/8] videobuf2: handle non-contiguous DMA allocations

From: Sergey Senozhatsky
Date: Thu Jun 17 2021 - 03:57:06 EST


On (21/06/03 13:59), Hans Verkuil wrote:
> >
> > +static void __vb2_dc_put(struct vb2_dc_buf *buf)
> > +{
> > + if (buf->coherent_mem) {
> > + dma_free_attrs(buf->dev, buf->size, buf->cookie,
> > + buf->dma_addr, buf->attrs);
> > + return;
> > + }
> > +
> > + if (buf->vaddr)
> > + dma_vunmap_noncontiguous(buf->dev, buf->vaddr);
> > + dma_free_noncontiguous(buf->dev, buf->size,
> > + buf->dma_sgt, buf->dma_addr);
> > +}
>
> Is there a reason for creating __vb2_dc_put()? I found it more
> a hindrance when reviewing than an advantage. I prefer to have
> it moved to vb2_dc_put, that way all the clean up happens in that
> single function.

Done.