1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 7bab8eae2341..a515eb0afdfb 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -27,6 +27,8 @@ static inline void flush_kernel_dcache_page(struct page *page)
 unsigned int nr_free_highpages(void);
 extern unsigned long totalhigh_pages;
 
+void kmap_flush_unused(void);
+
 #else /* CONFIG_HIGHMEM */
 
 static inline unsigned int nr_free_highpages(void) { return 0; }
@@ -49,10 +51,13 @@ static inline void *kmap_atomic(struct page *page, enum km_type idx)
         pagefault_disable();
         return page_address(page);
 }
+#define kmap_atomic_prot(page, idx, prot)       kmap_atomic(page, idx)
 
 #define kunmap_atomic(addr, idx)        do { pagefault_enable(); } while (0)
 #define kmap_atomic_pfn(pfn, idx)       kmap_atomic(pfn_to_page(pfn), (idx))
 #define kmap_atomic_to_page(ptr)        virt_to_page(ptr)
+
+#define kmap_flush_unused()     do {} while(0)
 #endif
 
 #endif /* CONFIG_HIGHMEM */