On Tue, Jul 31, 2012 at 7:11 AM, Hans Verkuil <hverkuil@xxxxxxxxx> wrote: >> > For that matter, wouldn't it be useful to support exporting a userptr buffer >> > at some point in the future? >> >> Shouldn't USERPTR usage be discouraged once we get dma-buf support ? > > Why? It's perfectly fine to use it and it's not going away. > > I'm not saying that we should support exporting a userptr buffer as a dmabuf fd, > but I'm just wondering if that is possible at all and how difficult it would be. it seems not terribly safe, since you don't really have much control over where the memory comes from w/ userptr. I'm more in favor of discouraging usage of userptr BR, -R -- 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
