From patchwork Mon Mar 1 16:12:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 390214 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=-23.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS, 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 111CCC433E6 for ; Mon, 1 Mar 2021 16:36:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C5FD764F69 for ; Mon, 1 Mar 2021 16:36:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232528AbhCAQgZ (ORCPT ); Mon, 1 Mar 2021 11:36:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:36936 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231697AbhCAQaI (ORCPT ); Mon, 1 Mar 2021 11:30:08 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7D87564F14; Mon, 1 Mar 2021 16:23:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614615823; bh=7fkjkJhQY5EGun8BlWEPT6Z64hnJsovML4CUGpHBZYU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t7C47TSdov46sm6lwG3OawD/0AqGYOwQQsmJF6SzHFzoLU7BZfeu4ll1ALF/oS8vl JNUpkDOfnv7PndMNyrodPBuvuEOpLPgvv4ab9Cdm4KihqrF3ARaeqzg6CEXzEQQFLo UjKJr086lTgLlTenUH76cW89hlBTMvStrn1s3U3c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dmitry Golovin , Nathan Chancellor , Thomas Bogendoerfer , Sasha Levin Subject: [PATCH 4.9 033/134] MIPS: lantiq: Explicitly compare LTQ_EBU_PCC_ISTAT against 0 Date: Mon, 1 Mar 2021 17:12:14 +0100 Message-Id: <20210301161015.208718250@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161013.585393984@linuxfoundation.org> References: <20210301161013.585393984@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Nathan Chancellor [ Upstream commit c6f2a9e17b9bef7677caddb1626c2402f3e9d2bd ] When building xway_defconfig with clang: arch/mips/lantiq/irq.c:305:48: error: use of logical '&&' with constant operand [-Werror,-Wconstant-logical-operand] if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0) && LTQ_EBU_PCC_ISTAT) ^ ~~~~~~~~~~~~~~~~~ arch/mips/lantiq/irq.c:305:48: note: use '&' for a bitwise operation if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0) && LTQ_EBU_PCC_ISTAT) ^~ & arch/mips/lantiq/irq.c:305:48: note: remove constant to silence this warning if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0) && LTQ_EBU_PCC_ISTAT) ~^~~~~~~~~~~~~~~~~~~~ 1 error generated. Explicitly compare the constant LTQ_EBU_PCC_ISTAT against 0 to fix the warning. Additionally, remove the unnecessary parentheses as this is a simple conditional statement and shorthand '== 0' to '!'. Fixes: 3645da0276ae ("OF: MIPS: lantiq: implement irq_domain support") Link: https://github.com/ClangBuiltLinux/linux/issues/807 Reported-by: Dmitry Golovin Signed-off-by: Nathan Chancellor Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin --- arch/mips/lantiq/irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c index 7c6f75c2aa4df..e64f678ca12c8 100644 --- a/arch/mips/lantiq/irq.c +++ b/arch/mips/lantiq/irq.c @@ -245,7 +245,7 @@ static void ltq_hw_irqdispatch(int module) do_IRQ((int)irq + MIPS_CPU_IRQ_CASCADE + (INT_NUM_IM_OFFSET * module)); /* if this is a EBU irq, we need to ack it or get a deadlock */ - if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0) && LTQ_EBU_PCC_ISTAT) + if (irq == LTQ_ICU_EBU_IRQ && !module && LTQ_EBU_PCC_ISTAT != 0) ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_ISTAT) | 0x10, LTQ_EBU_PCC_ISTAT); }