diff --git a/[refs] b/[refs]
index 603d905f7804..91e68cbbefa4 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a1e4ee22863d41a6fbb24310d7951836cb6dafe7
+refs/heads/master: 68df3755e383e6fecf2354a67b08f92f18536594
diff --git a/trunk/Makefile b/trunk/Makefile
index 2e2f4a4324af..f607658ac896 100644
--- a/trunk/Makefile
+++ b/trunk/Makefile
@@ -347,6 +347,7 @@ KBUILD_CPPFLAGS := -D__KERNEL__
 KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -fno-strict-aliasing -fno-common \
 		   -Werror-implicit-function-declaration
+KBUILD_CFLAGS	+= $(call cc-option,-fwrapv)
 KBUILD_AFLAGS   := -D__ASSEMBLY__
 
 # Read KERNELRELEASE from include/config/kernel.release (if it exists)