From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Behan Webster , Matthias Kaehlcke , Masahiro Yamada , Nathan Chancellor Subject: [PATCH 4.4 13/70] kbuild: use -Oz instead of -Os when using clang Date: Mon, 26 Nov 2018 11:50:28 +0100 Message-Id: <20181126105048.162761399@linuxfoundation.org> In-Reply-To: <20181126105046.722096341@linuxfoundation.org> References: <20181126105046.722096341@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Behan Webster commit 6748cb3c299de1ffbe56733647b01dbcc398c419 upstream. This generates smaller resulting object code when compiled with clang. Signed-off-by: Behan Webster Signed-off-by: Matthias Kaehlcke Signed-off-by: Masahiro Yamada [nc: Adjust context due to lack of commit a76bcf557ef4 in linux-4.4.y] Signed-off-by: Nathan Chancellor Signed-off-by: Greg Kroah-Hartman --- 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