From patchwork Tue Jul 9 02:36:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 1129446 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=mediatek.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45jRKj1XLlz9sN1 for ; Tue, 9 Jul 2019 12:36:57 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726917AbfGICgo (ORCPT ); Mon, 8 Jul 2019 22:36:44 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:12602 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725886AbfGICgo (ORCPT ); Mon, 8 Jul 2019 22:36:44 -0400 X-UUID: 1d77772b16c348e28179721787fd1af7-20190709 X-UUID: 1d77772b16c348e28179721787fd1af7-20190709 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 2044741967; Tue, 09 Jul 2019 10:36:36 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 9 Jul 2019 10:36:35 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 9 Jul 2019 10:36:35 +0800 From: Biao Huang To: , Jose Abreu , CC: Giuseppe Cavallaro , Alexandre Torgue , Maxime Coquelin , Matthias Brugger , , , , , , , , , Subject: [PATCH 1/2 net-next] net: stmmac: dwmac4: mac address array boudary violation issue Date: Tue, 9 Jul 2019 10:36:22 +0800 Message-ID: <20190709023623.8358-2-biao.huang@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20190709023623.8358-1-biao.huang@mediatek.com> References: <20190709023623.8358-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The mac address array size is GMAC_MAX_PERFECT_ADDRESSES, so the 'reg' should be less than it, or will affect other registers. Signed-off-by: Biao Huang --- drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c index 8d9f6cda4012..776077ec1a23 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c @@ -454,7 +454,7 @@ static void dwmac4_set_filter(struct mac_device_info *hw, reg++; } - while (reg <= GMAC_MAX_PERFECT_ADDRESSES) { + while (reg < GMAC_MAX_PERFECT_ADDRESSES) { writel(0, ioaddr + GMAC_ADDR_HIGH(reg)); writel(0, ioaddr + GMAC_ADDR_LOW(reg)); reg++;