Hi Jon, I get this error when compiling the latest for_v3.1 media_tree: Kernel: arch/x86/boot/bzImage is ready (#400) ERROR: "vb2_dma_contig_init_ctx" [drivers/media/video/marvell-ccic/cafe_ccic.ko] undefined! ERROR: "vb2_dma_contig_cleanup_ctx" [drivers/media/video/marvell-ccic/cafe_ccic.ko] undefined! ERROR: "vb2_dma_contig_memops" [drivers/media/video/marvell-ccic/cafe_ccic.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 I think this is missing: diff --git a/drivers/media/video/marvell-ccic/Kconfig b/drivers/media/video/marvell-ccic/Kconfig index 22314a0..68ff5d6 100644 --- a/drivers/media/video/marvell-ccic/Kconfig +++ b/drivers/media/video/marvell-ccic/Kconfig @@ -3,6 +3,7 @@ config VIDEO_CAFE_CCIC depends on PCI && I2C && VIDEO_V4L2 select VIDEO_OV7670 select VIDEOBUF2_VMALLOC + select VIDEOBUF2_DMA_CONTIG ---help--- This is a video4linux2 driver for the Marvell 88ALP01 integrated CMOS camera controller. This is the controller found on first- Can you confirm this? Regards, Hans -- 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