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* [PATCH] Fixing io-pgtable-arm build failure
@ 2016-01-13 14:48 ` Lada Trimasova
  0 siblings, 0 replies; 5+ messages in thread
From: Lada Trimasova @ 2016-01-13 14:48 UTC (permalink / raw)
  To: linux-arm-kernel
  Cc: linux-snps-arc, linux-kernel, linux-arch, Lada Trimasova,
	Alexey Brodkin, Vineet Gupta, Will Deacon, Joerg Roedel

Trying to build kernel for ARC with both options
CONFIG_COMPILE_TEST and CONFIG_IOMMU_IO_PGTABLE_LPAE enabled
(which happened really in "allyesconfig") I'm seeing this:
---------------->8----------------
$ make ARCH=arc
...sic...
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);
^
---------------->8----------------
and so on.

IOMMU_IO_PGTABLE_LPAE depends on DMA API.
So io-pgtable-arm.c should include linux/dma-mapping.h.

Signed-off-by: Lada Trimasova <ltrimas@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Joerg Roedel <joro@8bytes.org>
---
 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 7df9777..0b1aca0 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>
 
-- 
2.5.0

^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2016-01-20  1:15 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2016-01-13 14:48 [PATCH] Fixing io-pgtable-arm build failure Lada Trimasova
2016-01-13 14:48 ` Lada Trimasova
2016-01-13 14:48 ` Lada Trimasova
2016-01-19 14:53 ` Lada Trimasova
2016-01-20  1:15   ` Will Deacon

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