--- 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,)