1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3b3e1341163f..3f3ccfe42de0 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -235,6 +235,7 @@ static inline int get_page_unless_zero(struct page *page)
 struct page *vmalloc_to_page(const void *addr);
 unsigned long vmalloc_to_pfn(const void *addr);
 
+#ifdef CONFIG_MMU
 /* Determine if an address is within the vmalloc range */
 static inline int is_vmalloc_addr(const void *x)
 {
@@ -242,6 +243,7 @@ static inline int is_vmalloc_addr(const void *x)
 
         return addr >= VMALLOC_START && addr < VMALLOC_END;
 }
+#endif
 
 static inline struct page *compound_head(struct page *page)
 {