From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67783C10F00 for ; Mon, 25 Feb 2019 22:03:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2C6B52146F for ; Mon, 25 Feb 2019 22:03:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551132199; bh=YOb5rZBylGBwXR+HyqlQPhV6lVox6okbCGNVzXpnPXE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ePfCHHTPxMBrtSLOcLxCFtUBPEpVapFTDn88FYn/m8dXyTB1+0pgXrgzMDpS8XiOm Bb+Fs1KGBB+6wu9erHZgcNF8TBKFSUnBbgYw3LNrdiBo4FEM+8hSC1hZLozNulqkOe BuK8oGeVa/Jksb6Y4OK1efySeBCatTHGuAW28AJc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728880AbfBYVOv (ORCPT ); Mon, 25 Feb 2019 16:14:51 -0500 Received: from mail.kernel.org ([198.145.29.99]:45742 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729329AbfBYVOs (ORCPT ); Mon, 25 Feb 2019 16:14:48 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (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 5C1E821734; Mon, 25 Feb 2019 21:14:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551129287; bh=YOb5rZBylGBwXR+HyqlQPhV6lVox6okbCGNVzXpnPXE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=alDdWmqV7Yj4DCw7QPnvC7RjM+cpAskJJRhYP7r/BoiWIlleZK7CDr8D8t1pLHNP7 6bH+FCgVTN0YwowcjqYEaOoD53S7rZyFVyEdfVy1Swqgz9AwQi8xLJTDFhiecOMibK 2wFhkkDdgoWlE1FEDc5nwzNPQSY5mxcDUnF9wQoM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Matthias Kaehlcke , "Steven Rostedt (VMware)" , Nathan Chancellor Subject: [PATCH 4.9 45/63] tracing: Use cpumask_available() to check if cpumask variable may be used Date: Mon, 25 Feb 2019 22:11:45 +0100 Message-Id: <20190225195039.264955438@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190225195035.713274200@linuxfoundation.org> References: <20190225195035.713274200@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Matthias Kaehlcke commit 4dbbe2d8e95c351157f292ece067f985c30c7b53 upstream. This fixes the following clang warning: kernel/trace/trace.c:3231:12: warning: address of array 'iter->started' will always evaluate to 'true' [-Wpointer-bool-conversion] if (iter->started) Link: http://lkml.kernel.org/r/20170421234110.117075-1-mka@chromium.org Signed-off-by: Matthias Kaehlcke Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Nathan Chancellor Signed-off-by: Greg Kroah-Hartman --- kernel/trace/trace.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3022,13 +3022,14 @@ static void test_cpu_buff_start(struct t if (!(iter->iter_flags & TRACE_FILE_ANNOTATE)) return; - if (iter->started && cpumask_test_cpu(iter->cpu, iter->started)) + if (cpumask_available(iter->started) && + cpumask_test_cpu(iter->cpu, iter->started)) return; if (per_cpu_ptr(iter->trace_buffer->data, iter->cpu)->skipped_entries) return; - if (iter->started) + if (cpumask_available(iter->started)) cpumask_set_cpu(iter->cpu, iter->started); /* Don't print started cpu buffer for the first entry of the trace */