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Fri, 29 Apr 2022 13:36:49 -0700 (PDT) Date: Fri, 29 Apr 2022 13:36:24 -0700 In-Reply-To: <20220429203644.2868448-1-samitolvanen@google.com> Message-Id: <20220429203644.2868448-2-samitolvanen@google.com> Mime-Version: 1.0 References: <20220429203644.2868448-1-samitolvanen@google.com> X-Developer-Key: i=samitolvanen@google.com; a=openpgp; fpr=35CCFB63B283D6D3AEB783944CB5F6848BBC56EE X-Developer-Signature: v=1; a=openpgp-sha256; l=880; h=from:subject; bh=bTBRIvqJN0r4QxW0Fiqjtc1SR+oznSS8ydEfQr7tcSo=; b=owEB7QES/pANAwAKAUy19oSLvFbuAcsmYgBibExVtkZEXF4lWFd0quNeiDzZL9e1AigoAzh9F8Ek vYmOPRaJAbMEAAEKAB0WIQQ1zPtjsoPW0663g5RMtfaEi7xW7gUCYmxMVQAKCRBMtfaEi7xW7t1EC/ 47sHOPPMx1FdEmLi3pxA8b6kFaGgSF4qhS4uCyWFckVJ1yyehiGk20aNGPxlvFyGac+BdaOuQipIxN Ou37XvXH8DIf8oJjUTCr3v2DLhnVRSN/mHuBi+0o2xQq7uCIiEZwujO3w2ajffL/L2OmGR5bDM7bFi 31QqrHChTCaYmswmWq4i7BibuTh0EsIkGnG+BrI/myJEKtebWiQxmcSLIYIXs/e+GF9i0JnhVAvOkb W2ercajsgf4zDhfp2PAml/n3V7kt3BjFjuqMp/JmrWBc3QUcYAZ7zDZ8QWB2G8lFAFr3JkRdDJSWF6 8nv0nx0ZHKmGMIz6sZfts+c7m+x26Y2JJqqPSv0Jtr6TyxPYTiudk/LobE+R7VCoRJSRE0QMhBBIu1 PqRy883di9Kp8Gj8kY8K3M7eGw9RUG9pDPQIN1eBqV3wbn6G3Baw7odJCOA0x3TWGsuJHKPCHNlKdf FfFz1EMuWGs4NAUh0tqYXIeUXTD6w3yAqsj1M54wU9ryQ= X-Mailer: git-send-email 2.36.0.464.gb9c8b46e94-goog Subject: [RFC PATCH 01/21] efi/libstub: Filter out CC_FLAGS_CFI From: Sami Tolvanen To: linux-kernel@vger.kernel.org Cc: Kees Cook , Josh Poimboeuf , Peter Zijlstra , x86@kernel.org, Catalin Marinas , Will Deacon , Mark Rutland , Nathan Chancellor , Nick Desaulniers , Joao Moreira , Sedat Dilek , Steven Rostedt , linux-hardening@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev, Sami Tolvanen X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220429_133652_483460_355F3FD4 X-CRM114-Status: UNSURE ( 9.73 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Explicitly filter out CC_FLAGS_CFI in preparation for the flags being removed from CC_FLAGS_LTO. Signed-off-by: Sami Tolvanen --- drivers/firmware/efi/libstub/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index d0537573501e..234fb2910622 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -39,6 +39,8 @@ KBUILD_CFLAGS := $(cflags-y) -Os -DDISABLE_BRANCH_PROFILING \ # remove SCS flags from all objects in this directory KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS)) +# disable CFI +KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_CFI), $(KBUILD_CFLAGS)) # disable LTO KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_LTO), $(KBUILD_CFLAGS))