From patchwork Wed Sep 6 08:56:29 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Colin Ian King X-Patchwork-Id: 810446 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-ide-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3xnHWQ703tz9sBZ for ; Wed, 6 Sep 2017 18:56:34 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752247AbdIFI4d (ORCPT ); Wed, 6 Sep 2017 04:56:33 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:35995 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752236AbdIFI4b (ORCPT ); Wed, 6 Sep 2017 04:56:31 -0400 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1dpW8M-0004Mr-6Z; Wed, 06 Sep 2017 08:56:30 +0000 From: Colin King To: Tejun Heo , linux-ide@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] libata: zpodd: make arrays cdb static, reduces object code size Date: Wed, 6 Sep 2017 09:56:29 +0100 Message-Id: <20170906085629.23938-1-colin.king@canonical.com> X-Mailer: git-send-email 2.14.1 MIME-Version: 1.0 Sender: linux-ide-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org From: Colin Ian King Don't populate the arrays cdb on the stack, instead make them static. Makes the object code smaller by 230 bytes: Before: text data bss dec hex filename 3797 240 0 4037 fc5 drivers/ata/libata-zpodd.o After: text data bss dec hex filename 3407 400 0 3807 edf drivers/ata/libata-zpodd.o Signed-off-by: Colin Ian King --- drivers/ata/libata-zpodd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c index 8a01d09ac4db..23a62e4015d0 100644 --- a/drivers/ata/libata-zpodd.c +++ b/drivers/ata/libata-zpodd.c @@ -34,7 +34,7 @@ struct zpodd { static int eject_tray(struct ata_device *dev) { struct ata_taskfile tf; - const char cdb[] = { GPCMD_START_STOP_UNIT, + static const char cdb[] = { GPCMD_START_STOP_UNIT, 0, 0, 0, 0x02, /* LoEj */ 0, 0, 0, 0, 0, 0, 0, @@ -55,7 +55,7 @@ static enum odd_mech_type zpodd_get_mech_type(struct ata_device *dev) unsigned int ret; struct rm_feature_desc *desc = (void *)(buf + 8); struct ata_taskfile tf; - char cdb[] = { GPCMD_GET_CONFIGURATION, + static const char cdb[] = { GPCMD_GET_CONFIGURATION, 2, /* only 1 feature descriptor requested */ 0, 3, /* 3, removable medium feature */ 0, 0, 0,/* reserved */