From patchwork Mon Jun 20 20:05:55 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Davidlohr Bueso X-Patchwork-Id: 9188689 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6E6A86089D for ; Mon, 20 Jun 2016 20:07:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5CC7827CF9 for ; Mon, 20 Jun 2016 20:07:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4F95F27D29; Mon, 20 Jun 2016 20:07:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9645927CEA for ; Mon, 20 Jun 2016 20:07:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933392AbcFTUHt (ORCPT ); Mon, 20 Jun 2016 16:07:49 -0400 Received: from smtp2.provo.novell.com ([137.65.250.81]:43561 "EHLO smtp2.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752262AbcFTUHg (ORCPT ); Mon, 20 Jun 2016 16:07:36 -0400 Received: from linux-80c1.suse (prv-ext-foundry1int.gns.novell.com [137.65.251.240]) by smtp2.provo.novell.com with ESMTP (TLS encrypted); Mon, 20 Jun 2016 14:06:47 -0600 From: Davidlohr Bueso To: peterz@infradead.org, mingo@kernel.org Cc: davem@davemloft.net, cw00.choi@samsung.com, dougthompson@xmission.com, bp@alien8.de, mchehab@osg.samsung.com, gregkh@linuxfoundation.org, pfg@sgi.com, jikos@kernel.org, hans.verkuil@cisco.com, awalls@md.metrocast.net, dledford@redhat.com, sean.hefty@intel.com, kys@microsoft.com, heiko.carstens@de.ibm.com, James.Bottomley@HansenPartnership.com, sumit.semwal@linaro.org, schwidefsky@de.ibm.com, linux-kernel@vger.kernel.org, dave@stgolabs.net, linux-pm@vger.kernel.org, Davidlohr Bueso Subject: [PATCH 03/12] PM,devfreq: Employ atomic_fetch_inc() Date: Mon, 20 Jun 2016 13:05:55 -0700 Message-Id: <1466453164-13185-4-git-send-email-dave@stgolabs.net> X-Mailer: git-send-email 2.6.6 In-Reply-To: <1466453164-13185-1-git-send-email-dave@stgolabs.net> References: <1466453164-13185-1-git-send-email-dave@stgolabs.net> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Now that we have fetch_inc() we can stop using inc_return() - 1. These are very similar to the existing OP-RETURN primitives we already have, except they return the value of the atomic variable _before_ modification. Cc: Chanwoo Choi Cc: linux-pm@vger.kernel.org Signed-off-by: Davidlohr Bueso Acked-by: Chanwoo Choi --- drivers/devfreq/devfreq-event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c index 39b048eda2ce..45b02d3d7e7d 100644 --- a/drivers/devfreq/devfreq-event.c +++ b/drivers/devfreq/devfreq-event.c @@ -329,7 +329,7 @@ struct devfreq_event_dev *devfreq_event_add_edev(struct device *dev, edev->dev.class = devfreq_event_class; edev->dev.release = devfreq_event_release_edev; - dev_set_name(&edev->dev, "event.%d", atomic_inc_return(&event_no) - 1); + dev_set_name(&edev->dev, "event.%d", atomic_fetch_inc(&event_no)); ret = device_register(&edev->dev); if (ret < 0) { put_device(&edev->dev);