Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752433AbdLLHfk (ORCPT ); Tue, 12 Dec 2017 02:35:40 -0500 Received: from mail-pf0-f193.google.com ([209.85.192.193]:33611 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752373AbdLLHfg (ORCPT ); Tue, 12 Dec 2017 02:35:36 -0500 X-Google-Smtp-Source: ACJfBosyL14FcnHwfC4JEBvsBkXvD0aUXl6EbrD1u1ZVpYjHmhmyttFD1eRKYVoIvkvMxL2BsnxtYg== 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 , David Laight 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: [PATCHv2 11/13] irq debug: do not use print_symbol() Date: Tue, 12 Dec 2017 16:34:53 +0900 Message-Id: <20171212073453.21455-1-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20171211125025.2270-12-sergey.senozhatsky@gmail.com> References: <20171211125025.2270-12-sergey.senozhatsky@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1788 Lines: 52 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: Thomas Gleixner --- kernel/irq/debug.h | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/kernel/irq/debug.h b/kernel/irq/debug.h index 17f05ef8f575..7e06dd275c17 100644 --- a/kernel/irq/debug.h +++ b/kernel/irq/debug.h @@ -3,8 +3,6 @@ * Debugging printout: */ -#include - #define ___P(f) if (desc->status_use_accessors & f) printk("%14s set\n", #f) #define ___PS(f) if (desc->istate & f) printk("%14s set\n", #f) /* FIXME */ @@ -14,14 +12,14 @@ static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) { printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); - printk("->handle_irq(): %p, ", desc->handle_irq); - print_symbol("%s\n", (unsigned long)desc->handle_irq); - printk("->irq_data.chip(): %p, ", desc->irq_data.chip); - print_symbol("%s\n", (unsigned long)desc->irq_data.chip); + printk("->handle_irq(): %p, %pS\n", + desc->handle_irq, desc->handle_irq); + printk("->irq_data.chip(): %p, %pS\n", + desc->irq_data.chip, desc->irq_data.chip); printk("->action(): %p\n", desc->action); if (desc->action) { - printk("->action->handler(): %p, ", desc->action->handler); - print_symbol("%s\n", (unsigned long)desc->action->handler); + printk("->action->handler(): %p, %pS\n", + desc->action->handler, desc->action->handler); } ___P(IRQ_LEVEL); -- 2.15.1