--- arch/arm/Makefile
+++ arch/arm/Makefile
@@ -17,7 +17,7 @@ endif
OBJCOPYFLAGS :=-O binary -R .comment -S
GZFLAGS :=-9
-#KBUILD_CFLAGS +=-pipe
+KBUILD_CFLAGS +=-pipe
# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
KBUILD_CFLAGS +=$(call cc-option,-marm,)