From: Lada Trimasova <[email protected]> Trying to build a kernel for ARC with both options CONFIG_COMPILE_TEST and CONFIG_IOMMU_IO_PGTABLE_LPAE enabled (e.g. as a result of "make allyesconfig") results in the following build failure:
| CC drivers/iommu/io-pgtable-arm.o | linux/drivers/iommu/io-pgtable-arm.c: In | function ‘__arm_lpae_alloc_pages’: | linux/drivers/iommu/io-pgtable-arm.c:221:3: | error: implicit declaration of function ‘dma_map_single’ | [-Werror=implicit-function-declaration] | dma = dma_map_single(dev, pages, size, DMA_TO_DEVICE); | ^ | linux/drivers/iommu/io-pgtable-arm.c:221:42: | error: ‘DMA_TO_DEVICE’ undeclared (first use in this function) | dma = dma_map_single(dev, pages, size, DMA_TO_DEVICE); | ^ Since IOMMU_IO_PGTABLE_LPAE depends on DMA API, io-pgtable-arm.c should include linux/dma-mapping.h. This fixes the reported failure. Cc: Alexey Brodkin <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: Joerg Roedel <[email protected]> Signed-off-by: Lada Trimasova <[email protected]> Signed-off-by: Will Deacon <[email protected]> --- Joerg -- can you pick this up as a fix for 4.5, please? I don't have any other fixes queued, so a pull request seems a bit OTT. drivers/iommu/io-pgtable-arm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index 8bbcbfe7695c..381ca5a37a7b 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -25,6 +25,7 @@ #include <linux/sizes.h> #include <linux/slab.h> #include <linux/types.h> +#include <linux/dma-mapping.h> #include <asm/barrier.h> -- 2.1.4 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
