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iommu/io-pgtable-arm: Fix io-pgtable-arm build failure

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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]>
Signed-off-by: Joerg Roedel <[email protected]>
This commit is contained in:
Lada Trimasova 2016-01-27 11:10:32 +00:00 • committed by Joerg Roedel
commit 8f6aff9858
1 changed files with 1 additions and 0 deletions
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1
drivers/iommu/io-pgtable-arm.c
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@ -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>