From patchwork Wed Aug 26 18:13:38 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joe Perches X-Patchwork-Id: 7079141 Return-Path: X-Original-To: patchwork-platform-driver-x86@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 831789F372 for ; Wed, 26 Aug 2015 18:13:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AFC8020948 for ; Wed, 26 Aug 2015 18:13:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5824D208CA for ; Wed, 26 Aug 2015 18:13:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751727AbbHZSNp (ORCPT ); Wed, 26 Aug 2015 14:13:45 -0400 Received: from smtprelay0228.hostedemail.com ([216.40.44.228]:38959 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751313AbbHZSNo (ORCPT ); Wed, 26 Aug 2015 14:13:44 -0400 Received: from filter.hostedemail.com (unknown [216.40.38.60]) by smtprelay01.hostedemail.com (Postfix) with ESMTP id AB21923425; Wed, 26 Aug 2015 18:13:43 +0000 (UTC) X-Session-Marker: 6A6F6540706572636865732E636F6D X-Spam-Summary: 2, 0, 0, , d41d8cd98f00b204, joe@perches.com, :::::::::, RULES_HIT:41:355:379:541:800:960:973:988:989:1260:1277:1311:1313:1314:1345:1373:1437:1515:1516:1518:1534:1541:1593:1594:1711:1730:1747:1777:1792:2393:2553:2559:2562:2828:3138:3139:3140:3141:3142:3352:3865:3867:4321:5007:6119:6261:8603:8660:10004:10400:10848:11026:11473:11658:11914:12043:12296:12438:12517:12519:12555:13069:13148:13230:13311:13357:14394:21080:21088, 0, RBL:none, CacheIP:none, Bayesian:0.5, 0.5, 0.5, Netcheck:none, DomainCache:0, MSF:not bulk, SPF:fn, MSBL:0, DNSBL:none, Custom_rules:0:0:0 X-HE-Tag: water24_773532c0b3224 X-Filterd-Recvd-Size: 2071 Received: from joe-X200MA.home (pool-173-51-221-2.lsanca.fios.verizon.net [173.51.221.2]) (Authenticated sender: joe@perches.com) by omf05.hostedemail.com (Postfix) with ESMTPA; Wed, 26 Aug 2015 18:13:39 +0000 (UTC) Message-ID: <1440612818.2780.24.camel@perches.com> Subject: [PATCH] thinkpad_acpi: Remove side effects from vdbg_printk -> no_printk macro From: Joe Perches To: Henrique de Moraes Holschuh Cc: Darren Hart , ibm-acpi-devel@lists.sourceforge.net, platform-driver-x86@vger.kernel.org, linux-kernel Date: Wed, 26 Aug 2015 11:13:38 -0700 X-Mailer: Evolution 3.12.11-0ubuntu3 Mime-Version: 1.0 Sender: platform-driver-x86-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP vdbg_printk when not using CONFIG_THINKPAD_ACPI_DEBUG uses no_printk which produces no logging output but always evaluates arguments. Change the macro to surround the no_printk call with do { if (0) no_printk(...); } while (0) to avoid the unnecessary argument evaluations. $ size drivers/platform/x86/thinkpad_acpi.o* text data bss dec hex filename 60918 6184 824 67926 10956 drivers/platform/x86/thinkpad_acpi.o.new 60927 6184 824 67935 1095f drivers/platform/x86/thinkpad_acpi.o.old Signed-off-by: Joe Perches Acked-by: Henrique de Moraes Holschuh --- drivers/platform/x86/thinkpad_acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 33e488c..131dd74 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -402,7 +402,7 @@ static const char *str_supported(int is_supported); #else static inline const char *str_supported(int is_supported) { return ""; } #define vdbg_printk(a_dbg_level, format, arg...) \ - no_printk(format, ##arg) + do { if (0) no_printk(format, ##arg); } while (0) #endif static void tpacpi_log_usertask(const char * const what)