From patchwork Mon Dec 11 12:50:13 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergey Senozhatsky X-Patchwork-Id: 10104919 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D2271602B3 for ; Mon, 11 Dec 2017 12:51:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A889E29583 for ; Mon, 11 Dec 2017 12:51:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9D05B29585; Mon, 11 Dec 2017 12:51:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D8C0E29584 for ; Mon, 11 Dec 2017 12:50:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752855AbdLKMu7 (ORCPT ); Mon, 11 Dec 2017 07:50:59 -0500 Received: from mail-pf0-f196.google.com ([209.85.192.196]:43540 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752806AbdLKMuz (ORCPT ); Mon, 11 Dec 2017 07:50:55 -0500 Received: by mail-pf0-f196.google.com with SMTP id e3so11452569pfi.10; Mon, 11 Dec 2017 04:50:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=qEl0K9sqaOmfhtH32mtnqlXxAi4hxaJLTXG2CRK0DY0=; b=KARW7I08ycIQhr1K2lPpxqm4dglw+kUbRIGWu4j/wHfZi7ECw8Tz3VQ9Y9Zs4NNt1z BDgE8lfW43ibIKM/3y8U5ocF90h7MciUVwY/f8V+T/bNyDobtCVP3fxfL0fxxTm+T8XB 6ROKyUEgIjIDJ/OlvTqtZkkgs9qEnBevj2leypZiz+YF3vPTat2JcHu/ChWvfQENQrYI MOC4ZDfef8PerrALDJwlDB8z/zuNc0mzT8YPc2BHXBwOYJ5QqQo8Sl8EgbRh6+HhY38V BOCbg+S5+TU778nQ3H+Vj749GViIlRLPkRqTbWMgPEjlXoGcPEp8nqlRa2d3IH3EKhwV drtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=qEl0K9sqaOmfhtH32mtnqlXxAi4hxaJLTXG2CRK0DY0=; b=OquCjecez9QoT1N9dE2Nnu4Gh/Au4bkhMvZcZWficB6scEN00Adst9iXVzqvOkInDz gYuSVaUWHEDhBY6Aq53rOy7+e4I7bpL42LoQq3LDGLfeI5k7QP5osOBMg15VrRGCMVId 5rsG5+13EmSU3VmyGVPMMRUXmUb0PDervNRy3Vr9EYe0H+0ahAsEIqmHoTnrnQwL1AFq XJ0kVPSWf+EAlAU89FdBs9XQ0Uhr6Qgk/7M9MmdjQYK9e6TnhtXvmDGy9Aj7w6PiCiam +nIMtckM/12HgRWO/sTNK4/8rU/1SOh85a1KHgv4LZIUcCdeuSQogdiIAwqa1SFp5LU4 d8zw== X-Gm-Message-State: AKGB3mKIX5a/UyZFvCRuzCUaLjovnM3TJRy4l36rhNHv2TkIyxb+c3Yj UL32WzKjtUNIG4b7kaUsxUE= X-Google-Smtp-Source: ACJfBoscWkyON9fHwn1GObZVuvq1trcTJ0uXrie25USGAN+GAOpoE54kcHdj86NwsGc2oILoaWt2pA== X-Received: by 10.84.231.1 with SMTP id f1mr282452plk.352.1512996654615; Mon, 11 Dec 2017 04:50:54 -0800 (PST) Received: from localhost.localdomain ([110.70.53.61]) by smtp.gmail.com with ESMTPSA id j13sm23374380pff.131.2017.12.11.04.50.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Dec 2017 04:50:53 -0800 (PST) From: Sergey Senozhatsky X-Google-Original-From: Sergey Senozhatsky To: Andrew Morton , Russell King , Catalin Marinas , Mark Salter , Tony Luck , David Howells , Yoshinori Sato , Guan Xuetao , Borislav Petkov , Greg Kroah-Hartman , Thomas Gleixner , Peter Zijlstra , Vineet Gupta , Fengguang Wu Cc: Steven Rostedt , Petr Mladek , LKML , linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-ia64@vger.kernel.org, linux-am33-list@redhat.com, linux-sh@vger.kernel.org, linux-edac@vger.kernel.org, x86@kernel.org, linux-snps-arc@lists.infradead.org, Sergey Senozhatsky , Sergey Senozhatsky Subject: [PATCH 01/13] arm: do not use print_symbol() Date: Mon, 11 Dec 2017 21:50:13 +0900 Message-Id: <20171211125025.2270-2-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20171211125025.2270-1-sergey.senozhatsky@gmail.com> References: <20171211125025.2270-1-sergey.senozhatsky@gmail.com> Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP print_symbol() uses extra stack space to sprintf() symbol information and then to feed that buffer to printk() char buffer[KSYM_SYMBOL_LEN]; sprint_symbol(buffer, address); printk(fmt, buffer); Replace print_symbol() with a direct printk("%pS") call. Signed-off-by: Sergey Senozhatsky Cc: Russell King --- arch/arm/kernel/process.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index d96714e1858c..db004f6f547a 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include @@ -121,8 +120,8 @@ void __show_regs(struct pt_regs *regs) show_regs_print_info(KERN_DEFAULT); - print_symbol("PC is at %s\n", instruction_pointer(regs)); - print_symbol("LR is at %s\n", regs->ARM_lr); + printk("PC is at %pS\n", instruction_pointer(regs)); + printk("LR is at %pS\n", (void *)regs->ARM_lr); printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n", regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr); printk("sp : %08lx ip : %08lx fp : %08lx\n",