Hi Hans, > This makes no sense. The vivi driver uses vb2-vmalloc as well, and that works > perfectly fine in userptr mode. Applying this patch breaks vivi userptr mode, > so this is a NACK for this patch. Don't misunderstand, I acknowledge the very real possibility that I don't fully understand the underlying problem. And to be clear I wasn't intending to send the patch to this mailing list expecting it to be merged. That said, I reproduced it on the ti81xx platform on both em28xx and uvcvideo, so I was comfortable it wasn't an issue with my em28xx VB2 conversion. > I wonder though if this is related to this thread: > > http://www.spinics.net/lists/linux-media/msg75815.html > > I suspect that in your case the vb2_get_contig_userptr() function is called > which as far as I can tell is the wrong function to call for the vmalloc case > since there is absolutely no requirement that user pointers should be > physically contiguous for vmalloc drivers. Entirely possible. I hadn't followed that thread previously but will take a look. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- 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
