Hi Yong, On Mon, Dec 31, 2018 at 11:46:43AM -0600, Yong Zhi wrote: > Fix link error for specific .config reported by lkp robot: > > drivers/staging/media/ipu3/ipu3-dmamap.o: In function `ipu3_dmamap_alloc': > drivers/staging/media/ipu3/ipu3-dmamap.c:111: undefined reference to `alloc_iova' > > Signed-off-by: Yong Zhi <yong.zhi@xxxxxxxxx> > --- > Happy New Year!! > > drivers/staging/media/ipu3/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/staging/media/ipu3/Kconfig b/drivers/staging/media/ipu3/Kconfig > index 75cd889f18f7..c486cbbe859a 100644 > --- a/drivers/staging/media/ipu3/Kconfig > +++ b/drivers/staging/media/ipu3/Kconfig > @@ -3,7 +3,7 @@ config VIDEO_IPU3_IMGU > depends on PCI && VIDEO_V4L2 > depends on MEDIA_CONTROLLER && VIDEO_V4L2_SUBDEV_API > depends on X86 > - select IOMMU_IOVA > + select IOMMU_IOVA if IOMMU_SUPPORT I don't think this really addresses the issue: the IOVA library is needed in any case. I'll submit a patch... > select VIDEOBUF2_DMA_SG > ---help--- > This is the Video4Linux2 driver for Intel IPU3 image processing unit, > -- > 2.7.4 > -- Sakari Ailus sakari.ailus@xxxxxxxxxxxxxxx