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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,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 18D25C76186 for ; Wed, 24 Jul 2019 20:08:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DA38C214AF for ; Wed, 24 Jul 2019 20:08:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563998921; bh=K/9hXdjdLbOyie9sfKfu0UVL4P5uobe5o3tW4w9bU4Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=kdKtKiYTG/gxF3TEhK33jCowaxD1CDXJbvk7jLOpAD+FP5FfctVju1m643EWnKLzU S/6074le3AkUiasIHidBYsmpeYG8xCY+yVCA82DiJw3sMP/tPaEeV8w5lft07gES2l xFDjl2yHQz3PMz6vw4CJ41S9zTBPDuJY/z/F9lmM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388658AbfGXUCC (ORCPT ); Wed, 24 Jul 2019 16:02:02 -0400 Received: from mail.kernel.org ([198.145.29.99]:51328 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392243AbfGXUCA (ORCPT ); Wed, 24 Jul 2019 16:02:00 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.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 AF8312147A; Wed, 24 Jul 2019 20:01:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563998520; bh=K/9hXdjdLbOyie9sfKfu0UVL4P5uobe5o3tW4w9bU4Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RIgRhUDbrQpDY9uEj3eLwrvx2KOyRiQNWDKLM87gT68yViq1GLlGkuAYbivhSk4dn gDtocvmhlZ/0pZ4VHkKSguzL8oNRtGN6JvkB9h3bUigw+TXWQN7lH29aSOZEhtAT/j Jle2/9XX5LK14sTS1xdplyfj5G/LD4WafbvCx2ug= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jose Abreu , Joao Pinto , "David S. Miller" , Giuseppe Cavallaro , Alexandre Torgue , Sasha Levin Subject: [PATCH 4.19 022/271] net: stmmac: dwmac1000: Clear unused address entries Date: Wed, 24 Jul 2019 21:18:11 +0200 Message-Id: <20190724191657.127273187@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190724191655.268628197@linuxfoundation.org> References: <20190724191655.268628197@linuxfoundation.org> User-Agent: quilt/0.66 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 [ Upstream commit 9463c445590091202659cdfdd44b236acadfbd84 ] In case we don't use a given address entry we need to clear it because it could contain previous values that are no longer valid. Found out while running stmmac selftests. Signed-off-by: Jose Abreu Cc: Joao Pinto Cc: David S. Miller Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index 0877bde6e860..21d131347e2e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -216,6 +216,12 @@ static void dwmac1000_set_filter(struct mac_device_info *hw, GMAC_ADDR_LOW(reg)); reg++; } + + while (reg <= perfect_addr_number) { + writel(0, ioaddr + GMAC_ADDR_HIGH(reg)); + writel(0, ioaddr + GMAC_ADDR_LOW(reg)); + reg++; + } } #ifdef FRAME_FILTER_DEBUG -- 2.20.1