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 5CF6BC4167B for ; Mon, 24 Jan 2022 23:07:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1843934AbiAXXHH (ORCPT ); Mon, 24 Jan 2022 18:07:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1841130AbiAXW5l (ORCPT ); Mon, 24 Jan 2022 17:57:41 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9D04C0797BF; Mon, 24 Jan 2022 13:12:07 -0800 (PST) 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 47FCF6131F; Mon, 24 Jan 2022 21:12:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5616BC340E5; Mon, 24 Jan 2022 21:12:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643058726; bh=Q3ypDHHx3RUbuMxMVkYb3TNXwem+cB96Bf8NslW8Bak=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QNLPMzsEr1DCoA5tGWD97m2akatrcNwQHqWquUxO9lyv/BSt6Wna3y16IVI9O/cKI i++5b/VQ/faMtXxTI47sL9mcYvMHZeCURd3DD593KEIE8Tz+KYj/mWToohOBIPUG2t 27vaMOza4vTaC1ZkX2rKEZUiv2Z9fkupJmJ4uVLU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , "David S. Miller" , Sasha Levin Subject: [PATCH 5.16 0383/1039] rocker: fix a sleeping in atomic bug Date: Mon, 24 Jan 2022 19:36:12 +0100 Message-Id: <20220124184138.185390373@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220124184125.121143506@linuxfoundation.org> References: <20220124184125.121143506@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dan Carpenter [ Upstream commit 43d012123122cc69feacab55b71369f386c19566 ] This code is holding the &ofdpa->flow_tbl_lock spinlock so it is not allowed to sleep. That means we have to pass the OFDPA_OP_FLAG_NOWAIT flag to ofdpa_flow_tbl_del(). Fixes: 936bd486564a ("rocker: use FIB notifications instead of switchdev calls") Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/rocker/rocker_ofdpa.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/rocker/rocker_ofdpa.c b/drivers/net/ethernet/rocker/rocker_ofdpa.c index 3e1ca7a8d0295..bc70c6abd6a5b 100644 --- a/drivers/net/ethernet/rocker/rocker_ofdpa.c +++ b/drivers/net/ethernet/rocker/rocker_ofdpa.c @@ -2783,7 +2783,8 @@ static void ofdpa_fib4_abort(struct rocker *rocker) if (!ofdpa_port) continue; nh->fib_nh_flags &= ~RTNH_F_OFFLOAD; - ofdpa_flow_tbl_del(ofdpa_port, OFDPA_OP_FLAG_REMOVE, + ofdpa_flow_tbl_del(ofdpa_port, + OFDPA_OP_FLAG_REMOVE | OFDPA_OP_FLAG_NOWAIT, flow_entry); } spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags); -- 2.34.1