From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932438AbcBWJGF (ORCPT ); Tue, 23 Feb 2016 04:06:05 -0500 Received: from terminus.zytor.com ([198.137.202.10]:57470 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753706AbcBWJF6 (ORCPT ); Tue, 23 Feb 2016 04:05:58 -0500 Date: Tue, 23 Feb 2016 01:00:37 -0800 From: =?UTF-8?B?dGlwLWJvdCBmb3IgSm9zaCBQb2ltYm9ldWYgPHRpcGJvdEB6eXRvci5jb20+?=@zytor.com Message-ID: Cc: peterz@infradead.org, jpoimboe@redhat.com, bernd@petrovitsch.priv.at, pavel@ucw.cz, brgerst@gmail.com, acme@kernel.org, mmarek@suse.cz, dvlasenk@redhat.com, len.brown@intel.com, linux-kernel@vger.kernel.org, rafael.j.wysocki@intel.com, mingo@kernel.org, luto@kernel.org, bp@alien8.de, jslaby@suse.cz, bp@suse.de, akpm@linux-foundation.org, palves@redhat.com, namhyung@gmail.com, chris.j.arges@canonical.com, tglx@linutronix.de, torvalds@linux-foundation.org, luto@amacapital.net, hpa@zytor.com Reply-To: linux-kernel@vger.kernel.org, rafael.j.wysocki@intel.com, mingo@kernel.org, jpoimboe@redhat.com, peterz@infradead.org, bernd@petrovitsch.priv.at, pavel@ucw.cz, brgerst@gmail.com, dvlasenk@redhat.com, len.brown@intel.com, acme@kernel.org, mmarek@suse.cz, tglx@linutronix.de, chris.j.arges@canonical.com, luto@amacapital.net, torvalds@linux-foundation.org, hpa@zytor.com, luto@kernel.org, akpm@linux-foundation.org, namhyung@gmail.com, palves@redhat.com, bp@alien8.de, bp@suse.de, jslaby@suse.cz In-Reply-To: <7383d87dd40a460e0d757a0793498b9d06a7ee0d.1453405861.git.jpoimboe@redhat.com> References: <7383d87dd40a460e0d757a0793498b9d06a7ee0d.1453405861.git.jpoimboe@redhat.com> To: =?UTF-8?B?bGludXgtdGlwLWNvbW1pdHNAdmdlci5rZXJuZWwub3Jn?=@zytor.com Subject: =?UTF-8?B?W3RpcDp4ODYvZGVidWddIHg4Ni9hc20vYWNwaTogQ3JlYXRlIGEgc3RhY2sgZnI=?= =?UTF-8?B?YW1lIGluIGRvX3N1c3BlbmRfbG93bGV2ZWwoKQ==?= Git-Commit-ID: =?UTF-8?B?NGIwY2Y2OTNlZDIyNWI2MGFlYTg4MzUzNjFhMWM4Zjg1ZjlmOTA0MQ==?= X-Mailer: =?UTF-8?B?dGlwLWdpdC1sb2ctZGFlbW9u?= Robot-ID: =?UTF-8?B?PHRpcC1ib3QuZ2l0Lmtlcm5lbC5vcmc+?= Robot-Unsubscribe: =?UTF-8?B?Q29udGFjdCA8bWFpbHRvOmhwYUBrZXJuZWwub3JnPiB0byBnZXQgYmxhY2tsaXM=?= =?UTF-8?B?dGVkIGZyb20gdGhlc2UgZW1haWxz?= MIME-Version: =?UTF-8?B?MS4w?= Content-Transfer-Encoding: =?UTF-8?B?OGJpdA==?= Content-Type: =?UTF-8?B?dGV4dC9wbGFpbjsgY2hhcnNldD1VVEYtOA==?= Content-Disposition: =?UTF-8?B?aW5saW5l?= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 4b0cf693ed225b60aea8835361a1c8f85f9f9041 Gitweb: http://git.kernel.org/tip/4b0cf693ed225b60aea8835361a1c8f85f9f9041 Author: Josh Poimboeuf AuthorDate: Thu, 21 Jan 2016 16:49:21 -0600 Committer: Ingo Molnar CommitDate: Tue, 23 Feb 2016 09:03:57 +0100 x86/asm/acpi: Create a stack frame in do_suspend_lowlevel() do_suspend_lowlevel() is a callable non-leaf function which doesn't honor CONFIG_FRAME_POINTER, which can result in bad stack traces. Create a stack frame for it when CONFIG_FRAME_POINTER is enabled. Signed-off-by: Josh Poimboeuf Reviewed-by: Borislav Petkov Acked-by: Pavel Machek Acked-by: Rafael J. Wysocki Cc: Andrew Morton Cc: Andy Lutomirski Cc: Andy Lutomirski Cc: Arnaldo Carvalho de Melo Cc: Bernd Petrovitsch Cc: Borislav Petkov Cc: Brian Gerst Cc: Chris J Arges Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Jiri Slaby Cc: Len Brown 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/7383d87dd40a460e0d757a0793498b9d06a7ee0d.1453405861.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/acpi/wakeup_64.S | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S index 8c35df4..169963f 100644 --- a/arch/x86/kernel/acpi/wakeup_64.S +++ b/arch/x86/kernel/acpi/wakeup_64.S @@ -5,6 +5,7 @@ #include #include #include +#include # Copyright 2003 Pavel Machek , distribute under GPLv2 @@ -39,6 +40,7 @@ bogus_64_magic: jmp bogus_64_magic ENTRY(do_suspend_lowlevel) + FRAME_BEGIN subq $8, %rsp xorl %eax, %eax call save_processor_state @@ -109,6 +111,7 @@ ENTRY(do_suspend_lowlevel) xorl %eax, %eax addq $8, %rsp + FRAME_END jmp restore_processor_state ENDPROC(do_suspend_lowlevel)