media: staging: tegra-vde: Fix build error

If IOMMU_SUPPORT is not set, and COMPILE_TEST is y,
IOMMU_IOVA may be set to m. So building will fails:

drivers/staging/media/tegra-vde/iommu.o: In function `tegra_vde_iommu_map':
iommu.c:(.text+0x41): undefined reference to `alloc_iova'
iommu.c:(.text+0x56): undefined reference to `__free_iova'

Select IOMMU_IOVA while COMPILE_TEST is set to fix this.

Reported-by: Hulk Robot <hulkci@huawei.com>
Suggested-by: Dmitry Osipenko <digetx@gmail.com>
Fixes: b301f8de1925 ("media: staging: media: tegra-vde: Add IOMMU support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/staging/media/tegra-vde/Kconfig b/drivers/staging/media/tegra-vde/Kconfig
index 2e7f644ae591166937402992231338f87b411725..ba49ea50b8c0b9b242ec6e9e2eb327c5e417cf57 100644 (file)
--- a/drivers/staging/media/tegra-vde/Kconfig
+++ b/drivers/staging/media/tegra-vde/Kconfig
@@ -3,7 +3,7 @@ config TEGRA_VDE
        tristate "NVIDIA Tegra Video Decoder Engine driver"
        depends on ARCH_TEGRA || COMPILE_TEST
        select DMA_SHARED_BUFFER
-       select IOMMU_IOVA if IOMMU_SUPPORT
+       select IOMMU_IOVA if (IOMMU_SUPPORT || COMPILE_TEST)
        select SRAM
        help
            Say Y here to enable support for the NVIDIA Tegra video decoder