diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index d38820b31c1c55f48a8aa73d11aca06d6784779d..f478c57eb06033b32d673b13021db1c516e5721e 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -14,22 +14,24 @@
 #include <linux/ioport.h>
 
 #ifndef __ASSEMBLY__
-extern unsigned long find_e820_area(unsigned long start, unsigned long end, 
+extern unsigned long find_e820_area(unsigned long start, unsigned long end,
 				    unsigned long size, unsigned long align);
 extern unsigned long find_e820_area_size(unsigned long start,
 					 unsigned long *sizep,
 					 unsigned long align);
-extern void add_memory_region(unsigned long start, unsigned long size, 
+extern void add_memory_region(unsigned long start, unsigned long size,
 			      int type);
 extern void update_memory_range(u64 start, u64 size, unsigned old_type,
 				unsigned new_type);
 extern void setup_memory_region(void);
-extern void contig_e820_setup(void); 
+extern void contig_e820_setup(void);
 extern unsigned long e820_end_of_ram(void);
 extern void e820_reserve_resources(void);
 extern void e820_mark_nosave_regions(void);
-extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
-extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
+extern int e820_any_mapped(unsigned long start, unsigned long end,
+			   unsigned type);
+extern int e820_all_mapped(unsigned long start, unsigned long end,
+			   unsigned type);
 extern int e820_any_non_reserved(unsigned long start, unsigned long end);
 extern int is_memory_any_valid(unsigned long start, unsigned long end);
 extern int e820_all_non_reserved(unsigned long start, unsigned long end);
@@ -37,8 +39,8 @@ extern int is_memory_all_valid(unsigned long start, unsigned long end);
 extern unsigned long e820_hole_size(unsigned long start, unsigned long end);
 
 extern void e820_setup_gap(void);
-extern void e820_register_active_regions(int nid,
-				unsigned long start_pfn, unsigned long end_pfn);
+extern void e820_register_active_regions(int nid, unsigned long start_pfn,
+					 unsigned long end_pfn);
 
 extern void finish_e820_parsing(void);