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-rw-r--r--include/linux/highmem.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 2a7e6c65c88..6bece9280eb 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -28,6 +28,7 @@ static inline void *kmap(struct page *page)
#define kmap_atomic(page, idx) page_address(page)
#define kunmap_atomic(addr, idx) do { } while (0)
+#define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn))
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#endif /* CONFIG_HIGHMEM */