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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 3A161C7618F for ; Mon, 15 Jul 2019 14:31:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 13FC52086C for ; Mon, 15 Jul 2019 14:31:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563201110; bh=xlxfzyPhI5vqM5ivAdtriyedX7X75KfABksDlvQ9qKI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=pafN8qc9KDOXbQHW+ERbcmv8GokoJwpZYtMmsYPJ+wALzzTgGwVn6ocnZGpVAYrnU +xDndYR93Qf5nSiNvpu09FmWFAQOhBp+Y+DXQPb9zjLRGevBhkvP/7Mhwx06y+6t4P K6kuIr2oFVSEp4+0iVP8FJGHzbU5c02h7Hj5pWR8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391805AbfGOObs (ORCPT ); Mon, 15 Jul 2019 10:31:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:46052 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391218AbfGOObq (ORCPT ); Mon, 15 Jul 2019 10:31:46 -0400 Received: from sasha-vm.mshome.net (unknown [73.61.17.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9D1D4206B8; Mon, 15 Jul 2019 14:31:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563201105; bh=xlxfzyPhI5vqM5ivAdtriyedX7X75KfABksDlvQ9qKI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A/8APZ3JcTstWgL/DgDyx+aBG/MaIxtGx61Q2JlVwj1SSPF+r/levUfeEFMLM8jKo /pgvRjAWyRyZ9bkYSdgapjVI6dW2Qn/HNCYKbzDj+vKwhYWbocMFlizyEwRYiQfCeO tEoS26CiW4urZbVf+Vovcd1tPgbMyDsBSt9kSGas= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Qian Cai , Peter Zijlstra , Linus Torvalds , Thomas Gleixner , Ingo Molnar , Sasha Levin , linux-doc@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 053/105] sched/fair: Fix "runnable_avg_yN_inv" not used warnings Date: Mon, 15 Jul 2019 10:27:47 -0400 Message-Id: <20190715142839.9896-53-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190715142839.9896-1-sashal@kernel.org> References: <20190715142839.9896-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Qian Cai [ Upstream commit 509466b7d480bc5d22e90b9fbe6122ae0e2fbe39 ] runnable_avg_yN_inv[] is only used in kernel/sched/pelt.c but was included in several other places because they need other macros all came from kernel/sched/sched-pelt.h which was generated by Documentation/scheduler/sched-pelt. As the result, it causes compilation a lot of warnings, kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=] kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=] kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=] ... Silence it by appending the __maybe_unused attribute for it, so all generated variables and macros can still be kept in the same file. Signed-off-by: Qian Cai Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/1559596304-31581-1-git-send-email-cai@lca.pw Signed-off-by: Ingo Molnar Signed-off-by: Sasha Levin --- Documentation/scheduler/sched-pelt.c | 3 ++- kernel/sched/sched-pelt.h | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/Documentation/scheduler/sched-pelt.c b/Documentation/scheduler/sched-pelt.c index e4219139386a..7238b355919c 100644 --- a/Documentation/scheduler/sched-pelt.c +++ b/Documentation/scheduler/sched-pelt.c @@ -20,7 +20,8 @@ void calc_runnable_avg_yN_inv(void) int i; unsigned int x; - printf("static const u32 runnable_avg_yN_inv[] = {"); + /* To silence -Wunused-but-set-variable warnings. */ + printf("static const u32 runnable_avg_yN_inv[] __maybe_unused = {"); for (i = 0; i < HALFLIFE; i++) { x = ((1UL<<32)-1)*pow(y, i); diff --git a/kernel/sched/sched-pelt.h b/kernel/sched/sched-pelt.h index a26473674fb7..c529706bed11 100644 --- a/kernel/sched/sched-pelt.h +++ b/kernel/sched/sched-pelt.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* Generated by Documentation/scheduler/sched-pelt; do not modify. */ -static const u32 runnable_avg_yN_inv[] = { +static const u32 runnable_avg_yN_inv[] __maybe_unused = { 0xffffffff, 0xfa83b2da, 0xf5257d14, 0xefe4b99a, 0xeac0c6e6, 0xe5b906e6, 0xe0ccdeeb, 0xdbfbb796, 0xd744fcc9, 0xd2a81d91, 0xce248c14, 0xc9b9bd85, 0xc5672a10, 0xc12c4cc9, 0xbd08a39e, 0xb8fbaf46, 0xb504f333, 0xb123f581, -- 2.20.1