From patchwork Mon Jun 17 08:39:43 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ambresh K X-Patchwork-Id: 2732021 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B34F0C0AB1 for ; Mon, 17 Jun 2013 08:42:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E65BF2023A for ; Mon, 17 Jun 2013 08:42:20 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 15E7E20220 for ; Mon, 17 Jun 2013 08:42:16 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UoUze-0006Iz-Qr; Mon, 17 Jun 2013 08:40:55 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UoUzN-0000Nx-V7; Mon, 17 Jun 2013 08:40:37 +0000 Received: from comal.ext.ti.com ([198.47.26.152]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UoUz9-0000LS-Gk for linux-arm-kernel@lists.infradead.org; Mon, 17 Jun 2013 08:40:24 +0000 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r5H8e1hu006303; Mon, 17 Jun 2013 03:40:01 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r5H8e0bZ003461; Mon, 17 Jun 2013 03:40:00 -0500 Received: from dlelxv23.itg.ti.com (172.17.1.198) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.2.342.3; Mon, 17 Jun 2013 03:40:00 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlelxv23.itg.ti.com (8.13.8/8.13.8) with ESMTP id r5H8e0Ns025234; Mon, 17 Jun 2013 03:40:00 -0500 Received: from localhost (ula0393775-172024147073.apr.dhcp.ti.com [172.24.147.73]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r5H8dvV15735; Mon, 17 Jun 2013 03:39:57 -0500 (CDT) From: Ambresh K To: Mike Turquette Subject: [PATCH V2 2/3] clk: skip re-parenting orphan clk Date: Mon, 17 Jun 2013 14:09:43 +0530 Message-ID: <1371458384-23936-3-git-send-email-ambresh@ti.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1371458384-23936-1-git-send-email-ambresh@ti.com> References: <1371458384-23936-1-git-send-email-ambresh@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130617_044023_671398_FF6C7C07 X-CRM114-Status: UNSURE ( 9.43 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -8.0 (--------) Cc: Nishanth Menon , Paul Walmsley , Tony Lindgren , Rajendra , linux-kernel@vger.kernel.org, Tero Kristo , Ambresh K , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 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=-5.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 From: Ambresh K If clk is same as orphan clk then skip the iteration, there by avoiding unnecessary look-up. Signed-off-by: Ambresh K --- drivers/clk/clk.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 2842450..57bb94a 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1633,6 +1633,10 @@ int __clk_init(struct device *dev, struct clk *clk) * this clock */ hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) { + /* Skip if clk is same as orphan clk */ + if (!strcmp(clk->name, orphan->name)) + continue; + if (orphan->ops->get_parent) { i = orphan->ops->get_parent(orphan->hw); if (i < 0) {