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iommu/dma: Fix function declaration 

Newly added code in the ipmmu-vmsa driver showed a small mistake
in a header file that can't be included by itself without CONFIG_IOMMU_DMA
enabled:

In file included from drivers/iommu/ipmmu-vmsa.c:13:0:
include/linux/dma-iommu.h:105:94: error: 'struct device' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]

This adds a forward declaration for 'struct device', similar to how
we treat the other struct types in this case.

Fixes: 3ae4729202 ("iommu/ipmmu-vmsa: Add new IOMMU_DOMAIN_DMA ops")
Fixes: 273df96353 ("iommu/dma: Make PCI window reservation generic")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Arnd Bergmann 2017-05-18 15:13:57 +02:00 committed by Joerg Roedel
parent 5ed02dbb49
commit 4b1c88984c
1 changed files with 1 additions and 0 deletions
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include/linux/dma-iommu.h
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@ -78,6 +78,7 @@ void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
struct iommu_domain;
struct msi_msg;
struct device;
static inline int iommu_dma_init(void)
{