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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no 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 3BB25C433E1 for ; Wed, 19 Aug 2020 12:50:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0AA692076E for ; Wed, 19 Aug 2020 12:50:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597841410; bh=P21DRI9STOTIFsWr47hmn9m9qjEUq3E/mYyBNBX8UOI=; h=From:To:Cc:Subject:Date:List-ID:From; b=jddclpo0QjKIkjoQ2xuInWjCM/agAYHQeoaZW8Yz4mdjvGaEzt1NFroGPgkXXlMVg sWrQ4nM6gt+cEcEoq0exMQtkT1LCBnsdfOkFcAP3eVX3zH7ZN8td4SnqiwIiB6vskA +5AFGtYRxiNsBZnRqq9b3Fka+DISdhl0vkeMDalc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728230AbgHSMuG (ORCPT ); Wed, 19 Aug 2020 08:50:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:36520 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727022AbgHSMuD (ORCPT ); Wed, 19 Aug 2020 08:50:03 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AA259206B5; Wed, 19 Aug 2020 12:50:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597841403; bh=P21DRI9STOTIFsWr47hmn9m9qjEUq3E/mYyBNBX8UOI=; h=From:To:Cc:Subject:Date:From; b=VX/GTRhnbdHthYMlFoowaeaJCyFs+EBVlWF99bP8AhPZLOBEK1WOGMNhyY9dXHqXN CtGoGN/iCs+UoniA4UCGRxKlli9kYwyLxlS7vs01lj9Gq8h/16d7C8LeB2Z71/clIq o3AHykiyne4ca6lefsjcb017pUBn2gJ60W5h8hq4= From: Mark Brown To: Catalin Marinas , Will Deacon , Vasily Gorbik , Heiko Carstens , Borislav Petkov , Thomas Gleixner , "H. Peter Anvin" Cc: Christian Borntraeger , Ingo Molnar , Jiri Slaby , x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Miroslav Benes , Mark Brown Subject: [PATCH v2 0/3] arm64: Convert to ARCH_STACKWALK Date: Wed, 19 Aug 2020 13:49:10 +0100 Message-Id: <20200819124913.37261-1-broonie@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series updates the arm64 stacktrace code to use the newer and much simpler arch_stack_walk() interface, the main benefit being a single entry point to the arch code with no need for the arch code to worry about skipping frames. Along the way I noticed that the reliable parameter to the arch_stack_walk() callback appears to be redundant so there's also a patch here removing that from the existing code to simplify the interface. This is preparatory work for implementing reliable stack trace for arm64. v2: Rebase onto v5.9-rc1. Mark Brown (3): stacktrace: Remove reliable argument from arch_stack_walk() callback arm64: stacktrace: Make stack walk callback consistent with generic code arm64: stacktrace: Convert to ARCH_STACKWALK arch/arm64/Kconfig | 1 + arch/arm64/include/asm/stacktrace.h | 2 +- arch/arm64/kernel/perf_callchain.c | 6 +-- arch/arm64/kernel/return_address.c | 8 +-- arch/arm64/kernel/stacktrace.c | 84 ++++------------------------- arch/s390/kernel/stacktrace.c | 4 +- arch/x86/kernel/stacktrace.c | 10 ++-- include/linux/stacktrace.h | 5 +- kernel/stacktrace.c | 8 ++- 9 files changed, 30 insertions(+), 98 deletions(-) -- 2.20.1