diff --git a/arch/x86/lib/io_64.c b/arch/x86/lib/io_64.c
index 87b4a4e18039..3f1eb59b5f08 100644
--- a/arch/x86/lib/io_64.c
+++ b/arch/x86/lib/io_64.c
@@ -1,23 +1,25 @@
 #include <linux/string.h>
-#include <asm/io.h>
 #include <linux/module.h>
+#include <asm/io.h>
 
-void __memcpy_toio(unsigned long dst,const void*src,unsigned len)
+void __memcpy_toio(unsigned long dst, const void *src, unsigned len)
 {
-	__inline_memcpy((void *) dst,src,len);
+	__inline_memcpy((void *)dst, src, len);
 }
 EXPORT_SYMBOL(__memcpy_toio);
 
-void __memcpy_fromio(void *dst,unsigned long src,unsigned len)
+void __memcpy_fromio(void *dst, unsigned long src, unsigned len)
 {
-	__inline_memcpy(dst,(const void *) src,len);
+	__inline_memcpy(dst, (const void *)src, len);
 }
 EXPORT_SYMBOL(__memcpy_fromio);
 
 void memset_io(volatile void __iomem *a, int b, size_t c)
 {
-	/* XXX: memset can mangle the IO patterns quite a bit.
-	   perhaps it would be better to use a dumb one */
-	memset((void *)a,b,c);
+	/*
+	 * TODO: memset can mangle the IO patterns quite a bit.
+	 * perhaps it would be better to use a dumb one:
+	 */
+	memset((void *)a, b, c);
 }
 EXPORT_SYMBOL(memset_io);