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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9407FC433EF for ; Wed, 6 Jul 2022 22:18:52 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4LdYpz0zmbz2x9G for ; Thu, 7 Jul 2022 08:18:51 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=209.85.160.177; helo=mail-qt1-f177.google.com; envelope-from=geert.uytterhoeven@gmail.com; receiver=) Received: from mail-qt1-f177.google.com (mail-qt1-f177.google.com [209.85.160.177]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4LdF7L6Tz2z2yh9 for ; Wed, 6 Jul 2022 19:46:53 +1000 (AEST) Received: by mail-qt1-f177.google.com with SMTP id c13so17420263qtq.10 for ; Wed, 06 Jul 2022 02:46:53 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=o8jOPstF035V3JBIGTjyEra8xnCZ4RAIho4NrHeIzoU=; b=cJuC0qKIElQ6nZQTAEDFxLxljuL/FCbP2ukfUrXPXjCGvBEKD81RNrLr7EwkoiJR+V HKoBNQG2i89zMuTj++1OOwIBvfaEkf+XCuKK+M04NEI9fg2haS0A0nIzGJvNi3CDs8ZD U8a/fDTANDK6EKff8k10kTXubPfdC6OP5mU2MF8GaPIb24bgtiHUkmslf6Bj3xSy39w4 gxrouvJkujATWushCOMk6q7ge8fn2yD5YcvEmXAXsYxUs+3pQLKitsSUaZ+7/ax7kOo4 XG+nqi4svdtqoR6thb0OWwE11d4QgVZObmSgbKCkYoXlCM6K5t6FfvxVzAtORt/hLqYS s60Q== X-Gm-Message-State: AJIora+8x+yjel5zyv5Wj5nOSSqvP0EF9dwIUIG9Je+frU2ULrt8lOxu QWYpGJP4VJyatCodwD+cXgfekIy6CQGXj8Ew X-Google-Smtp-Source: AGRyM1tuBi25C+jTgrGOPAkhDfUSSI6/8YaZZ62Uz94+oBnOb4elXS6F3e3ow4xFyhEJkiN3Gi6rAw== X-Received: by 2002:a05:622a:4b:b0:31a:17ce:eebd with SMTP id y11-20020a05622a004b00b0031a17ceeebdmr32372320qtw.621.1657100808742; Wed, 06 Jul 2022 02:46:48 -0700 (PDT) Received: from mail-yb1-f175.google.com (mail-yb1-f175.google.com. [209.85.219.175]) by smtp.gmail.com with ESMTPSA id 142-20020a370994000000b006a73cb957dasm27889909qkj.20.2022.07.06.02.46.47 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 Jul 2022 02:46:48 -0700 (PDT) Received: by mail-yb1-f175.google.com with SMTP id i14so6676662yba.1 for ; Wed, 06 Jul 2022 02:46:47 -0700 (PDT) X-Received: by 2002:a05:6902:50e:b0:66e:7f55:7a66 with SMTP id x14-20020a056902050e00b0066e7f557a66mr6648581ybs.365.1657100796735; Wed, 06 Jul 2022 02:46:36 -0700 (PDT) MIME-Version: 1.0 References: <20220608142723.103523089@infradead.org> <20220608144517.124597382@infradead.org> In-Reply-To: <20220608144517.124597382@infradead.org> From: Geert Uytterhoeven Date: Wed, 6 Jul 2022 11:46:25 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 19/36] objtool/idle: Validate __cpuidle code as noinstr To: Peter Zijlstra Content-Type: text/plain; charset="UTF-8" X-Mailman-Approved-At: Thu, 07 Jul 2022 08:18:29 +1000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: juri.lelli@redhat.com, rafael@kernel.org, Linus Walleij , bsegall@google.com, guoren@kernel.org, pavel@ucw.cz, agordeev@linux.ibm.com, srivatsa@csail.mit.edu, linux-arch@vger.kernel.org, vincent.guittot@linaro.org, chenhuacai@kernel.org, linux-acpi@vger.kernel.org, agross@kernel.org, NXP Linux Team , catalin.marinas@arm.com, xen-devel@lists.xenproject.org, Matt Turner , borntraeger@linux.ibm.com, mturquette@baylibre.com, sammy@sammy.net, pmladek@suse.com, linux-pm@vger.kernel.org, jiangshanlai@gmail.com, Sascha Hauer , linux-um@lists.infradead.org, acme@kernel.org, tglx@linutronix.de, linux-omap@vger.kernel.org, dietmar.eggemann@arm.com, Richard Henderson , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, senozhatsky@chromium.org, svens@linux.ibm.com, jolsa@kernel.org, paulus@samba.org, mark.rutland@arm.com, linux-ia64@vger.kernel.or g, dave.hansen@linux.intel.com, virtualization@lists.linux-foundation.org, James.Bottomley@hansenpartnership.com, jcmvbkbc@gmail.com, thierry.reding@gmail.com, kernel@xen0n.name, quic_neeraju@quicinc.com, linux-s390@vger.kernel.org, vschneid@redhat.com, john.ogness@linutronix.de, ysato@users.sourceforge.jp, linux-sh@vger.kernel.org, Fabio Estevam , deller@gmx.de, daniel.lezcano@linaro.org, jonathanh@nvidia.com, mathieu.desnoyers@efficios.com, frederic@kernel.org, lenb@kernel.org, linux-xtensa@linux-xtensa.org, Sascha Hauer , gor@linux.ibm.com, linux-arm-msm@vger.kernel.org, linux-alpha@vger.kernel.org, linux-m68k@lists.linux-m68k.org, shorne@gmail.com, linux-arm-kernel@lists.infradead.org, chris@zankel.net, sboyd@kernel.org, dinguyen@kernel.org, bristot@redhat.com, alexander.shishkin@linux.intel.com, lpieralisi@kernel.org, linux@rasmusvillemoes.dk, joel@joelfernandes.org, will@kernel.org, boris.ostrovsky@oracle.com, khilman@kernel.org, linu x-csky@vger.kernel.org, pv-drivers@vmware.com, linux- snps-arc@lists.infradead.org, mgorman@suse.de, jacob.jun.pan@linux.intel.com, Arnd Bergmann , Hans Ulli Kroll , Vineet Gupta , linux-clk@vger.kernel.org, josh@joshtriplett.org, rostedt@goodmis.org, rcu@vger.kernel.org, bp@alien8.de, bcain@quicinc.com, tsbogend@alpha.franken.de, linux-parisc@vger.kernel.org, sudeep.holla@arm.com, Shawn Guo , davem@davemloft.net, dalias@libc.org, tony@atomide.com, amakhalov@vmware.com, bjorn.andersson@linaro.org, hpa@zytor.com, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, anton.ivanov@cambridgegreys.com, jonas@southpole.se, yury.norov@gmail.com, richard@nod.at, x86@kernel.org, Russell King , mingo@redhat.com, aou@eecs.berkeley.edu, paulmck@kernel.org, hca@linux.ibm.com, stefan.kristiansson@saunalahti.fi, openrisc@lists.librecores.org, paul.walmsley@sifive.com, linux-tegra@vger.kernel.org, namhyung@kerne l.org, andriy.shevchenko@linux.intel.com, jpoimboe@kernel.org, jgross@suse.com, monstr@monstr.eu, linux-mips@vger.kernel.org, palmer@dabbelt.com, anup@brainfault.org, Ivan Kokshaysky , johannes@sipsolutions.net, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, Jun 8, 2022 at 4:46 PM Peter Zijlstra wrote: > Idle code is very like entry code in that RCU isn't available. As > such, add a little validation. > > Signed-off-by: Peter Zijlstra (Intel) > arch/m68k/kernel/vmlinux-nommu.lds | 1 - > arch/m68k/kernel/vmlinux-std.lds | 1 - > arch/m68k/kernel/vmlinux-sun3.lds | 1 - FWIW Acked-by: Geert Uytterhoeven Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds