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@xxxxxxxxxx>
Suggested-by: Dmitry Osipenko <digetx@xxxxxxxxx>
Fixes: b301f8de1925 ("media: staging: media: tegra-vde: Add IOMMU support")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
drivers/staging/media/tegra-vde/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/tegra-vde/Kconfig b/drivers/staging/media/tegra-vde/Kconfig
index 2e7f644..ba49ea5 100644
--- 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
--
2.7.4
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