diff --git a/[refs] b/[refs]
index 76d6009129c2..1291930c4ba8 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9f14c42d7582bf33bbe1e133d897a6942ceae08e
+refs/heads/master: 2dadb987e09995b2910c419cdfe2307e66537649
diff --git a/trunk/arch/powerpc/include/asm/elf.h b/trunk/arch/powerpc/include/asm/elf.h
index c125da793b07..3f94d8880e6c 100644
--- a/trunk/arch/powerpc/include/asm/elf.h
+++ b/trunk/arch/powerpc/include/asm/elf.h
@@ -271,6 +271,11 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 				       int uses_interp);
 #define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b);
 
+/* 1GB for 64bit, 8MB for 32bit */
+#define STACK_RND_MASK (is_32bit_task() ? \
+	(0x7ff >> (PAGE_SHIFT - 12)) : \
+	(0x3ffff >> (PAGE_SHIFT - 12)))
+
 #endif /* __KERNEL__ */
 
 /*