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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 BA1DEC352AA for ; Wed, 2 Oct 2019 11:08:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9A78720700 for ; Wed, 2 Oct 2019 11:08:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728110AbfJBLIy (ORCPT ); Wed, 2 Oct 2019 07:08:54 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:36030 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728095AbfJBLIy (ORCPT ); Wed, 2 Oct 2019 07:08:54 -0400 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1iFcUz-00037j-AX; Wed, 02 Oct 2019 11:08:49 +0000 From: Colin King To: Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S . Miller" , Maxime Coquelin , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] net: stmmac: xgmac: add missing parentheses to fix precendence error Date: Wed, 2 Oct 2019 12:08:49 +0100 Message-Id: <20191002110849.13405-1-colin.king@canonical.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Colin Ian King The expression !(hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10 is always zero, so the masking operation is incorrect. Fix this by adding the missing parentheses to correctly bind the negate operator on the entire expression. Addresses-Coverity: ("Operands don't affect result") Fixes: c2b69474d63b ("net: stmmac: xgmac: Correct RAVSEL field interpretation") Signed-off-by: Colin Ian King --- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c index 965cbe3e6f51..2e814aa64a5c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c @@ -369,7 +369,7 @@ static void dwxgmac2_get_hw_feature(void __iomem *ioaddr, dma_cap->eee = (hw_cap & XGMAC_HWFEAT_EEESEL) >> 13; dma_cap->atime_stamp = (hw_cap & XGMAC_HWFEAT_TSSEL) >> 12; dma_cap->av = (hw_cap & XGMAC_HWFEAT_AVSEL) >> 11; - dma_cap->av &= !(hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10; + dma_cap->av &= !((hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10); dma_cap->arpoffsel = (hw_cap & XGMAC_HWFEAT_ARPOFFSEL) >> 9; dma_cap->rmon = (hw_cap & XGMAC_HWFEAT_MMCSEL) >> 8; dma_cap->pmt_magic_frame = (hw_cap & XGMAC_HWFEAT_MGKSEL) >> 7; -- 2.20.1