From patchwork Tue Jul 15 20:18:12 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felipe Balbi X-Patchwork-Id: 4558671 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 39AE39F295 for ; Tue, 15 Jul 2014 20:20:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 493442018B for ; Tue, 15 Jul 2014 20:20:53 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 805772018A for ; Tue, 15 Jul 2014 20:20:51 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X79BX-0005Hy-LE; Tue, 15 Jul 2014 20:18:47 +0000 Received: from devils.ext.ti.com ([198.47.26.153]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X79BU-000544-LC for linux-arm-kernel@lists.infradead.org; Tue, 15 Jul 2014 20:18:45 +0000 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id s6FKIMsW022007; Tue, 15 Jul 2014 15:18:22 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id s6FKIMHR032146; Tue, 15 Jul 2014 15:18:22 -0500 Received: from dlep33.itg.ti.com (157.170.170.75) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.174.1; Tue, 15 Jul 2014 15:18:22 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id s6FKILog008111; Tue, 15 Jul 2014 15:18:22 -0500 From: Felipe Balbi To: Subject: [PATCH] arm: omap: hwmod: drop unnecessary list initialization Date: Tue, 15 Jul 2014 15:18:12 -0500 Message-ID: <1405455492-1087-1-git-send-email-balbi@ti.com> X-Mailer: git-send-email 2.0.1.563.g66f467c MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140715_131844_783635_B53596F6 X-CRM114-Status: UNSURE ( 7.13 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.0 (-----) Cc: Tony Lindgren , Linux OMAP Mailing List , Felipe Balbi , Linux ARM Kernel Mailing List X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 ml->node and sl->node are currently initialized by means of INIT_LIST_HEAD(). That initialiation is followed by a list_add() call. Looking at what both these functions do we will have: ml->node.next = &ml->node; ml->node.prev = &ml->node; oi->master->master_ports.next.prev = &ml->node; ml->node.next = &oi->master->master_ports.next; ml->node.prev = &oi->master->master_ports; oi->master->master_ports.next = &ml->node; from this, it's clear that both INIT_LIST_HEAD() calls are unnecessary and can be safely removed. Signed-off-by: Felipe Balbi --- found by code inspection, boot tested on am437x SK on today's linux-next + pending patches. arch/arm/mach-omap2/omap_hwmod.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 6c074f3..8194990 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -2828,12 +2828,10 @@ static int __init _add_link(struct omap_hwmod_ocp_if *oi) _alloc_links(&ml, &sl); ml->ocp_if = oi; - INIT_LIST_HEAD(&ml->node); list_add(&ml->node, &oi->master->master_ports); oi->master->masters_cnt++; sl->ocp_if = oi; - INIT_LIST_HEAD(&sl->node); list_add(&sl->node, &oi->slave->slave_ports); oi->slave->slaves_cnt++;