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fix xen_swiotlb_dma_mmap prototype

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xen_swiotlb_dma_mmap was backported from v4.10, but older
kernels before commit 00085f1efa ("dma-mapping: use unsigned long
for dma_attrs") use a different signature:

arm/xen/mm.c:202:10: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
  .mmap = xen_swiotlb_dma_mmap,
          ^~~~~~~~~~~~~~~~~~~~
arm/xen/mm.c:202:10: note: (near initialization for 'xen_swiotlb_dma_ops.mmap')

This adapts the patch to the old calling conventions.

Fixes: "swiotlb-xen: implement xen_swiotlb_dma_mmap callback"
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2017-10-04 15:51:29 +02:00 committed by Greg Kroah-Hartman
parent 079c03f4a9
commit 228969b476
2 changed files with 2 additions and 2 deletions
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2
drivers/xen/swiotlb-xen.c
View File

@ -689,7 +689,7 @@ EXPORT_SYMBOL_GPL(xen_swiotlb_set_dma_mask);
int
xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs)
struct dma_attrs *attrs)
{
#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
if (__generic_dma_ops(dev)->mmap)

2
include/xen/swiotlb-xen.h
View File

@ -62,5 +62,5 @@ xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
extern int
xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs);
struct dma_attrs *attrs);
#endif /* __LINUX_SWIOTLB_XEN_H */