From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DFA7CC433DB for ; Wed, 10 Mar 2021 23:17:43 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1F34964FCA for ; Wed, 10 Mar 2021 23:17:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1F34964FCA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=alien8.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6FA4F8D024B; Wed, 10 Mar 2021 18:17:41 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 6832B8D0243; Wed, 10 Mar 2021 18:17:41 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4FCF18D024B; Wed, 10 Mar 2021 18:17:41 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0053.hostedemail.com [216.40.44.53]) by kanga.kvack.org (Postfix) with ESMTP id 2D8448D0243 for ; Wed, 10 Mar 2021 18:17:41 -0500 (EST) Received: from smtpin01.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id E671F180ACF86 for ; Wed, 10 Mar 2021 23:17:40 +0000 (UTC) X-FDA: 77905528680.01.8F95AC1 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by imf30.hostedemail.com (Postfix) with ESMTP id A856BE000114 for ; Wed, 10 Mar 2021 23:17:33 +0000 (UTC) Received: from zn.tnic (p200300ec2f0a9900a924d5d6558379cc.dip0.t-ipconnect.de [IPv6:2003:ec:2f0a:9900:a924:d5d6:5583:79cc]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 189CE1EC0324; Thu, 11 Mar 2021 00:17:38 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1615418258; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=vdW4jHtU0yP5nIiN9iN5QIKuVvJT42tBZF1aEM+pmEU=; b=OIreb/Q1GnNA6DuKQAQYJMdcbxOaH0NUHkN7M6Kf7IKhYmFJauv7y+XrlTqSsWEr8X4gRT tGYSQZjwQOLCA3nRyXqewrox7hN5tB5czxuo3XLI+/sA+g7CQ21vsIeygf++0qYcRxtQY3 jrI28tGi2TEAPSYH5No08OdnBG/xI+8= Date: Thu, 11 Mar 2021 00:17:31 +0100 From: Borislav Petkov To: "Yu, Yu-cheng" Cc: Jarkko Sakkinen , x86@kernel.org, "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V. Shankar" , Vedvyas Shanbhogue , Dave Martin , Weijiang Yang , Pengfei Xu , Haitao Huang Subject: Re: [PATCH v22 8/8] x86/vdso: Add ENDBR64 to __vdso_sgx_enter_enclave Message-ID: <20210310231731.GK23521@zn.tnic> References: <20210310220519.16811-1-yu-cheng.yu@intel.com> <20210310220519.16811-9-yu-cheng.yu@intel.com> <8b8efe44-b79f-ce29-ee28-066f88c93840@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <8b8efe44-b79f-ce29-ee28-066f88c93840@intel.com> X-Stat-Signature: cptmrx3kned8uo5j9d3dcwq7fo9e5tr4 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: A856BE000114 Received-SPF: none (alien8.de>: No applicable sender policy available) receiver=imf30; identity=mailfrom; envelope-from=""; helo=mail.skyhub.de; client-ip=5.9.137.197 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1615418253-529475 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Mar 10, 2021 at 02:55:55PM -0800, Yu, Yu-cheng wrote: > > > @@ -27,6 +27,9 @@ > > > SYM_FUNC_START(__vdso_sgx_enter_enclave) > > > /* Prolog */ > > > .cfi_startproc > > > +#ifdef CONFIG_X86_CET > > > + endbr64 > > > +#endif You can hide this ifdeffery in a macro and have ENDBR64 at the callsite and define .macro ENDBR64 #ifdef CONFIG_X86_CET endbr64 #endif .endm or so, perhaps. Ditto for endbr32. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette