kbuild: silence CHK/UPD messages according to $(quiet)

# mkcompile_h will make sure to only update the

# actual file if its content has changed.

 quiet_chk_compile.h = echo '  CHK     $@'

silent_chk_compile.h = :

include/linux/compile.h: FORCE

	@echo '  CHK     $@'

	@$($(quiet)chk_compile.h)

	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \

	"$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(KBUILD_CFLAGS)"

# - If they are equal no change, and no timestamp update

# - stdin is piped in from the first prerequisite ($<) so one has

#   to specify a valid file as first prerequisite (often the kbuild file)

 quiet_chk_filechk = echo '  CHK     $@'

silent_chk_filechk = :

 quiet_upd_filechk = echo '  UPD     $@'

silent_upd_filechk = :

define filechk

	$(Q)set -e;				\

	echo '  CHK     $@';			\

	$($(quiet)chk_filechk);			\

	mkdir -p $(dir $@);			\

	$(filechk_$(1)) < $< > $@.tmp;		\

	if [ -r $@ ] && cmp -s $@ $@.tmp; then	\

		rm -f $@.tmp;			\

	else					\

		echo '  UPD     $@';		\

		$($(quiet)upd_filechk);		\

		mv -f $@.tmp $@;		\

	fi

endef