4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Behan Webster <behanw@xxxxxxxxxxxxxxxxxx> commit 6748cb3c299de1ffbe56733647b01dbcc398c419 upstream. This generates smaller resulting object code when compiled with clang. Signed-off-by: Behan Webster <behanw@xxxxxxxxxxxxxxxxxx> Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> [nc: Adjust context due to lack of commit a76bcf557ef4 in linux-4.4.y] Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/Makefile +++ b/Makefile @@ -628,7 +628,7 @@ KBUILD_CFLAGS += $(call cc-disable-warni KBUILD_CFLAGS += $(call cc-disable-warning, attribute-alias) ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE -KBUILD_CFLAGS += -Os +KBUILD_CFLAGS += $(call cc-option,-Oz,-Os) else ifdef CONFIG_PROFILE_ALL_BRANCHES KBUILD_CFLAGS += -O2