Received: by 2002:a25:23cc:0:0:0:0:0 with SMTP id j195csp919195ybj; Thu, 7 May 2020 10:30:14 -0700 (PDT) X-Google-Smtp-Source: APiQypJnMjP12zASIVVYof+Dn3/Xh21Q3w+h4glcVASLGMc+z4RyUgW1MY9md3+MEQ62HA2f/9uE X-Received: by 2002:aa7:c649:: with SMTP id z9mr13314100edr.288.1588872614610; Thu, 07 May 2020 10:30:14 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1588872614; cv=none; d=google.com; s=arc-20160816; b=zm1cffDiLzwr4axpgfbKD52Q42ZdyITJ3IfPs2HPEJAVb3lM1zr5cuvi21VXlMLBiz qk4NVqYeaQXqLsAqQeAa9gHy+NUIfbCvuF16eg+Mhnj4bHAeDanZD/ez/lBXal+kUEoF 09FbPADCq2odyAtUxMvd11azNsK+sVCkmjUc7ch8+EpFGpsP3BNuAJlis2Xlc0CLYgQt OVQWwbIXIQuS/IlBmzQCKyz66UQYKk3x4jbh399sX4DJsbc2Pbdij7QWHTLVkmQ9dhcG ezEubIHDX0JWeaRJJCgVpnCr5pQSuTShqGjW+uZ6KQcREGvgolm1/qExq0giIUO6xQop lHQw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date; bh=G1y7eXKSuCsXKcksI9GAOgtlOvUMNvWOq4i+JMwXZ0E=; b=M5qL2KBHaU/j2nfDvvQYI8ryVsRynVNpOc16bLhz5ws6rxnpzikY5L9Q4LDhGvdXKy Jn1chERPiOuYqGYIXWx1Ecx/dr2xOBNUWjYrlEbsFmcYRYLDsAoYL1cT+T8iX2exHrff L1XuuHsn/VDUwi9J05pL+263dXpHEXFquCxVMRs4JRTfsgEs5FQGfyxxRkYqN4++ARR6 kZajuT4RE4uVETPOeYGDITIWJS689P0Ewev8+Gev1OqeBQO21PM/R4+8Hv9ZCnK1vRH3 yFWezTGZTNC2865bX3unAwWEWVMc1pUDpe99/OroXSH1YLaB9GBCsZaJTh/WbwNRZADX XW/Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id d3si3741998edr.351.2020.05.07.10.29.50; Thu, 07 May 2020 10:30:14 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726950AbgEGR2b (ORCPT + 99 others); Thu, 7 May 2020 13:28:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:56926 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726222AbgEGR2a (ORCPT ); Thu, 7 May 2020 13:28:30 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A01E6216FD; Thu, 7 May 2020 17:28:29 +0000 (UTC) Date: Thu, 7 May 2020 13:28:28 -0400 From: Steven Rostedt To: Valentin Schneider Cc: Jason Yan , mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, linux-kernel@vger.kernel.org Subject: Re: [PATCH] sched/fair: Return true,false in voluntary_active_balance() Message-ID: <20200507132828.1af39b80@gandalf.local.home> In-Reply-To: References: <20200507110625.37254-1-yanaijie@huawei.com> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 07 May 2020 12:17:36 +0100 Valentin Schneider wrote: > On 07/05/20 12:06, Jason Yan wrote: > > Fix the following coccicheck warning: > > > > kernel/sched/fair.c:9375:9-10: WARNING: return of 0/1 in function > > 'voluntary_active_balance' with return type bool > > > > It's perfectly safe to return 0/1 in a boolean function; that said seeing > as this is the second attempt at "fixing" this I'm tempted to say we should > pick it up... > Actually, I disagree. We should push back on the check to not warn on 0/1 of boolean. Why is this a warning? Fixes like this just add noise to the git history. -- Steve