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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F15F9C25B0F for ; Thu, 11 Aug 2022 16:27:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238386AbiHKQ15 (ORCPT ); Thu, 11 Aug 2022 12:27:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238132AbiHKQ0c (ORCPT ); Thu, 11 Aug 2022 12:26:32 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B9AB9F752; Thu, 11 Aug 2022 09:08:05 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 19F6461422; Thu, 11 Aug 2022 16:08:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 22665C43142; Thu, 11 Aug 2022 16:08:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660234084; bh=EWa3bwI+V1YrVciEjnomw0UKhr33J/rWdkBvFxADRlE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XxUEQNF4gpjsej6BV5By0babKMI23NkNV0ocd5gKVrnFOOnkw4L40nvgTXx9wL60X 6csMJ6cz/X5pAJfKHEY0GfTuB6JWKO0IHOh+HCBR+l4K5ssWk0/ai3ZUzITjdAwA6a Z92JrwdFNH8Ea5fLF6/cIof5Kh1ma7JdeNyXE1THr3e/KKJOlX5HQBqTVbKooISOQn EOOLhx0CLJ+I2hmTjgrNsNyw9bS1B+a2Jg6MoVqjsAlvFDcU+dcPvA2GtmkYJvNZix 01ZiGZFYLVp4wmOet1SljGwLU+XvuF5WpU9Xncv2k/tJO78QR8+pqzaYn6TgfslXfZ CL1hv7C6sSjyw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Christian Marangi , Jakub Kicinski , Sasha Levin , peppe.cavallaro@st.com, alexandre.torgue@foss.st.com, joabreu@synopsys.com, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, mcoquelin.stm32@gmail.com, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 5.10 41/46] net: ethernet: stmicro: stmmac: first disable all queues and disconnect in release Date: Thu, 11 Aug 2022 12:04:05 -0400 Message-Id: <20220811160421.1539956-41-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220811160421.1539956-1-sashal@kernel.org> References: <20220811160421.1539956-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Christian Marangi [ Upstream commit 7028471edb646bfc532fec0973e50e784cdcb7c6 ] Disable all queues and disconnect before tx_disable in stmmac_release to prevent a corner case where packet may be still queued at the same time tx_disable is called resulting in kernel panic if some packet still has to be processed. Signed-off-by: Christian Marangi Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 27b7bb64a028..46c2db220542 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3001,6 +3001,8 @@ static int stmmac_release(struct net_device *dev) for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) del_timer_sync(&priv->tx_queue[chan].txtimer); + netif_tx_disable(dev); + /* Free the IRQ lines */ free_irq(dev->irq, dev); if (priv->wol_irq != dev->irq) -- 2.35.1