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Merge branch 'topic/intel8x0' into for-linus
[firefly-linux-kernel-4.4.55.git]
/
include
/
linux
/
iommu-helper.h
diff --git
a/include/linux/iommu-helper.h
b/include/linux/iommu-helper.h
index a6d0586e2bf76227488045e7e38267a3f69bc455..3b068e5b56710222f43bd86a3a5f849128526171 100644
(file)
--- a/
include/linux/iommu-helper.h
+++ b/
include/linux/iommu-helper.h
@@
-23,4
+23,7
@@
extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
extern void iommu_area_free(unsigned long *map, unsigned long start,
unsigned int nr);
+extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len,
+ unsigned long io_page_size);
+
#endif