From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753823AbcB2LAj (ORCPT ); Mon, 29 Feb 2016 06:00:39 -0500 Received: from torg.zytor.com ([198.137.202.12]:52902 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753081AbcB2LAg (ORCPT ); Mon, 29 Feb 2016 06:00:36 -0500 Date: Mon, 29 Feb 2016 02:59:06 -0800 From: tip-bot for Josh Poimboeuf Message-ID: Cc: luto@kernel.org, hpa@zytor.com, bernd@petrovitsch.priv.at, david.vrabel@citrix.com, chris.j.arges@canonical.com, boris.ostrovsky@oracle.com, torvalds@linux-foundation.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, acme@kernel.org, mmarek@suse.cz, akpm@linux-foundation.org, palves@redhat.com, jpoimboe@redhat.com, mingo@kernel.org, peterz@infradead.org, namhyung@gmail.com, konrad.wilk@oracle.com, bp@alien8.de, jslaby@suse.cz Reply-To: boris.ostrovsky@oracle.com, david.vrabel@citrix.com, chris.j.arges@canonical.com, bernd@petrovitsch.priv.at, hpa@zytor.com, luto@kernel.org, linux-kernel@vger.kernel.org, acme@kernel.org, tglx@linutronix.de, torvalds@linux-foundation.org, mingo@kernel.org, jpoimboe@redhat.com, palves@redhat.com, akpm@linux-foundation.org, mmarek@suse.cz, bp@alien8.de, jslaby@suse.cz, konrad.wilk@oracle.com, namhyung@gmail.com, peterz@infradead.org In-Reply-To: References: To: linux-tip-commits@vger.kernel.org Subject: [tip:core/objtool] x86/xen: Mark xen_cpuid() stack frame as non-standard Git-Commit-ID: 983bb6d254c77aaec581473e11c2eb859294f1f2 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 983bb6d254c77aaec581473e11c2eb859294f1f2 Gitweb: http://git.kernel.org/tip/983bb6d254c77aaec581473e11c2eb859294f1f2 Author: Josh Poimboeuf AuthorDate: Sun, 28 Feb 2016 22:22:36 -0600 Committer: Ingo Molnar CommitDate: Mon, 29 Feb 2016 08:35:10 +0100 x86/xen: Mark xen_cpuid() stack frame as non-standard objtool reports the following false positive warning: arch/x86/xen/enlighten.o: warning: objtool: xen_cpuid()+0x41: can't find jump dest instruction at .text+0x108 The warning is due to xen_cpuid()'s use of XEN_EMULATE_PREFIX to insert some fake instructions which objtool doesn't know how to decode. Signed-off-by: Josh Poimboeuf Cc: Andrew Morton Cc: Andy Lutomirski Cc: Arnaldo Carvalho de Melo Cc: Bernd Petrovitsch Cc: Boris Ostrovsky Cc: Borislav Petkov Cc: Chris J Arges Cc: David Vrabel Cc: Jiri Slaby Cc: Konrad Rzeszutek Wilk Cc: Linus Torvalds Cc: Michal Marek Cc: Namhyung Kim Cc: Pedro Alves Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/bb88399840406629e3417831dc371ecd2842e2a6.1456719558.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar --- arch/x86/xen/enlighten.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index d09e4c9..5c45a69 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -32,6 +32,7 @@ #include #include #include +#include #ifdef CONFIG_KEXEC_CORE #include @@ -351,8 +352,8 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx, *cx &= maskecx; *cx |= setecx; *dx &= maskedx; - } +STACK_FRAME_NON_STANDARD(xen_cpuid); /* XEN_EMULATE_PREFIX */ static bool __init xen_check_mwait(void) {