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=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 7D91AC7618F for ; Mon, 15 Jul 2019 13:48:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D0CC2081C for ; Mon, 15 Jul 2019 13:48:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563198516; bh=k5w3Rb8LTpYRJ8/wcLaaSo1jqW/XMldTBQh29tfXPqo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=d7VOQNBVMegTQciBsCw6PeUZoTZEfV6a7ZbnIz+zGpPPTnx44ZR54uTD3ykNwDqI4 IOcJzKqUhZm6lQMnja3lYBnUI/ure4nGBxrD3Ggx5keolUEfFXpJdUOvCPCM5Jbaoc EVGi85yu8kV5corLc0XLRu6192uyS0QsEvvg3i/I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731517AbfGONsa (ORCPT ); Mon, 15 Jul 2019 09:48:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:58584 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731506AbfGONsa (ORCPT ); Mon, 15 Jul 2019 09:48:30 -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 243992081C; Mon, 15 Jul 2019 13:48:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563198509; bh=k5w3Rb8LTpYRJ8/wcLaaSo1jqW/XMldTBQh29tfXPqo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZVG+2lGc1YnXO2hCvnDJj5tTW4Gb/Z5zfaJHTKU+9MEAbu4EsjEdL7sVfozzQkyLq mqoYfMFWMN+kCxD2u/QykVKPb5zMy6A3a6IAGISX7cMGu39x6Wvii6MmLYEziT1tau Ox5smIONSugMgTTuuQwcLb0wwQzRpIzieaYXowJg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jose Abreu , Jose Abreu , Joao Pinto , "David S . Miller" , Giuseppe Cavallaro , Alexandre Torgue , Sasha Levin , netdev@vger.kernel.org Subject: [PATCH AUTOSEL 5.2 030/249] net: stmmac: dwmac1000: Clear unused address entries Date: Mon, 15 Jul 2019 09:43:15 -0400 Message-Id: <20190715134655.4076-30-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190715134655.4076-1-sashal@kernel.org> References: <20190715134655.4076-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jose Abreu [ 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 9fff81170163..54f4ffb36d60 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -206,6 +206,12 @@ 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