diff -urN linux-2.6.5-rc1-bk/include/linux/prefetch.h linux/include/linux/prefetch.h
--- linux-2.6.5-rc1-bk/include/linux/prefetch.h	2004-04-14 23:53:11.000000000 -0400
+++ linux/include/linux/prefetch.h	2004-04-16 11:12:25.840194048 -0400
@@ -59,7 +59,7 @@
 {
 #ifdef ARCH_HAS_PREFETCH
 	char *cp;
-	char *end = addr + len;
+	char *end = (char *)addr + len;
 
 	for (cp = addr; cp < end; cp += PREFETCH_STRIDE)
 		prefetch(cp);