From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 71F6E3212 for ; Tue, 7 Feb 2023 13:03:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD138C433EF; Tue, 7 Feb 2023 13:03:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1675774998; bh=MsX6TvKUrOgdywcPMMp13ZeuJnNul08OEcEkHSl1LGk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Nf/6S0kPMngMqrlHrX5ZI1U2mVP5xe/zcObP6fNqTC6wRsqzzx04HXsHLA3MP+JFr N7/GBadw0SmafeENo7CAK/e4OMSFmJFsz1EkvkmCYzc9yj4RHsQwzPzS2OrjyfY30E Oek+Ttls7mdawBdxAwPX9NLNdaQ/u4QOWGZvXj2s= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nathan Chancellor , Ingo Molnar , Nick Desaulniers , "Peter Zijlstra (Intel)" , Sasha Levin Subject: [PATCH 6.1 103/208] x86/build: Move -mindirect-branch-cs-prefix out of GCC-only block Date: Tue, 7 Feb 2023 13:55:57 +0100 Message-Id: <20230207125639.021360699@linuxfoundation.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230207125634.292109991@linuxfoundation.org> References: <20230207125634.292109991@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Nathan Chancellor [ Upstream commit 27b5de622ea3fe0ad5a31a0ebd9f7a0a276932d1 ] LLVM 16 will have support for this flag so move it out of the GCC-only block to allow LLVM builds to take advantage of it. Signed-off-by: Nathan Chancellor Signed-off-by: Ingo Molnar Tested-by: Nick Desaulniers Reviewed-by: Nick Desaulniers Acked-by: Peter Zijlstra (Intel) Link: https://github.com/ClangBuiltLinux/linux/issues/1665 Link: https://github.com/llvm/llvm-project/commit/6f867f9102838ebe314c1f3661fdf95700386e5a Link: https://lore.kernel.org/r/20230120165826.2469302-1-nathan@kernel.org Signed-off-by: Sasha Levin --- arch/x86/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 415a5d138de4..3419ffa2a350 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -14,13 +14,13 @@ endif ifdef CONFIG_CC_IS_GCC RETPOLINE_CFLAGS := $(call cc-option,-mindirect-branch=thunk-extern -mindirect-branch-register) -RETPOLINE_CFLAGS += $(call cc-option,-mindirect-branch-cs-prefix) RETPOLINE_VDSO_CFLAGS := $(call cc-option,-mindirect-branch=thunk-inline -mindirect-branch-register) endif ifdef CONFIG_CC_IS_CLANG RETPOLINE_CFLAGS := -mretpoline-external-thunk RETPOLINE_VDSO_CFLAGS := -mretpoline endif +RETPOLINE_CFLAGS += $(call cc-option,-mindirect-branch-cs-prefix) ifdef CONFIG_RETHUNK RETHUNK_CFLAGS := -mfunction-return=thunk-extern -- 2.39.0