From patchwork Wed Apr 26 06:25:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geetha sowjanya X-Patchwork-Id: 13224146 X-Patchwork-Delegate: kuba@kernel.org 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 BBA3BC7618E for ; Wed, 26 Apr 2023 06:26:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239560AbjDZG01 (ORCPT ); Wed, 26 Apr 2023 02:26:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239569AbjDZG0R (ORCPT ); Wed, 26 Apr 2023 02:26:17 -0400 Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B277630E4; Tue, 25 Apr 2023 23:26:00 -0700 (PDT) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 33Q64Kfo001000; Tue, 25 Apr 2023 23:25:53 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=pfpt0220; bh=vvzubNaZO+fbiB5i3liUp++u7cDAvPtmLpNSpBWRXYw=; b=KlppwRA46DExm+QWlNYjR0Mfuvc3WouERDutWBRy1jGRv0j7AyudJFQJT4EWEkbozuwJ tkJ6MpJlp8DPw4rRPi8iFIWPT0WUaUcYjHMM+goj/sXaBe3HhGWrSv41UGfyJWCa2WII fN0Q+yVq3728QH5v2kPC5ztI/c1eyYJwAMnAekV79x7wjlSkyLh2nlc6++QR24aDA9xi T7V6zijf4zW6K3YgfaUtUIag6aeqHxc5bUefyGWskbvXgYxvXsWALpDhq7FOXobCb5pT CdHeE5CXDaXviqnGZuukvXL2eNRfj9SH8UR3tHlyEmC6tyF9zU4otj4fYXWc1KxqGuAP OA== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3q4f3pdcws-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 25 Apr 2023 23:25:53 -0700 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Tue, 25 Apr 2023 23:25:50 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Tue, 25 Apr 2023 23:25:50 -0700 Received: from hyd1soter3.marvell.com (unknown [10.29.37.12]) by maili.marvell.com (Postfix) with ESMTP id B8FD13F7075; Tue, 25 Apr 2023 23:25:47 -0700 (PDT) From: Geetha sowjanya To: , CC: , , , , , , , , Subject: [net PATCH v2 5/9] octeontx2-pf: mcs: Fix NULL pointer dereferences Date: Wed, 26 Apr 2023 11:55:24 +0530 Message-ID: <20230426062528.20575-6-gakula@marvell.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230426062528.20575-1-gakula@marvell.com> References: <20230426062528.20575-1-gakula@marvell.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: 9srHDiYVploIK9iwT12yFoDwsivAKsUk X-Proofpoint-GUID: 9srHDiYVploIK9iwT12yFoDwsivAKsUk X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-04-26_02,2023-04-25_01,2023-02-09_01 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Subbaraya Sundeep When system is rebooted after creating macsec interface below NULL pointer dereference crashes occurred. This patch fixes those crashes by using correct order of teardown [ 3324.406942] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 3324.415726] Mem abort info: [ 3324.418510] ESR = 0x96000006 [ 3324.421557] EC = 0x25: DABT (current EL), IL = 32 bits [ 3324.426865] SET = 0, FnV = 0 [ 3324.429913] EA = 0, S1PTW = 0 [ 3324.433047] Data abort info: [ 3324.435921] ISV = 0, ISS = 0x00000006 [ 3324.439748] CM = 0, WnR = 0 .... [ 3324.575915] Call trace: [ 3324.578353] cn10k_mdo_del_secy+0x24/0x180 [ 3324.582440] macsec_common_dellink+0xec/0x120 [ 3324.586788] macsec_notify+0x17c/0x1c0 [ 3324.590529] raw_notifier_call_chain+0x50/0x70 [ 3324.594965] call_netdevice_notifiers_info+0x34/0x7c [ 3324.599921] rollback_registered_many+0x354/0x5bc [ 3324.604616] unregister_netdevice_queue+0x88/0x10c [ 3324.609399] unregister_netdev+0x20/0x30 [ 3324.613313] otx2_remove+0x8c/0x310 [ 3324.616794] pci_device_shutdown+0x30/0x70 [ 3324.620882] device_shutdown+0x11c/0x204 [ 966.664930] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 966.673712] Mem abort info: [ 966.676497] ESR = 0x96000006 [ 966.679543] EC = 0x25: DABT (current EL), IL = 32 bits [ 966.684848] SET = 0, FnV = 0 [ 966.687895] EA = 0, S1PTW = 0 [ 966.691028] Data abort info: [ 966.693900] ISV = 0, ISS = 0x00000006 [ 966.697729] CM = 0, WnR = 0 [ 966.833467] Call trace: [ 966.835904] cn10k_mdo_stop+0x20/0xa0 [ 966.839557] macsec_dev_stop+0xe8/0x11c [ 966.843384] __dev_close_many+0xbc/0x140 [ 966.847298] dev_close_many+0x84/0x120 [ 966.851039] rollback_registered_many+0x114/0x5bc [ 966.855735] unregister_netdevice_many.part.0+0x14/0xa0 [ 966.860952] unregister_netdevice_many+0x18/0x24 [ 966.865560] macsec_notify+0x1ac/0x1c0 [ 966.869303] raw_notifier_call_chain+0x50/0x70 [ 966.873738] call_netdevice_notifiers_info+0x34/0x7c [ 966.878694] rollback_registered_many+0x354/0x5bc [ 966.883390] unregister_netdevice_queue+0x88/0x10c [ 966.888173] unregister_netdev+0x20/0x30 [ 966.892090] otx2_remove+0x8c/0x310 [ 966.895571] pci_device_shutdown+0x30/0x70 [ 966.899660] device_shutdown+0x11c/0x204 [ 966.903574] __do_sys_reboot+0x208/0x290 [ 966.907487] __arm64_sys_reboot+0x20/0x30 [ 966.911489] el0_svc_handler+0x80/0x1c0 [ 966.915316] el0_svc+0x8/0x180 [ 966.918362] Code: f9400000 f9400a64 91220014 f94b3403 (f9400060) [ 966.924448] ---[ end trace 341778e799c3d8d7 ]--- Fixes: c54ffc73601c ("octeontx2-pf: mcs: Introduce MACSEC hardware offloading") Signed-off-by: Subbaraya Sundeep Signed-off-by: Sunil Goutham Signed-off-by: Geetha sowjanya Reviewed-by: Leon Romanovsky --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index 179433d0a54a..a75c944cc739 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -3073,8 +3073,6 @@ static void otx2_remove(struct pci_dev *pdev) otx2_config_pause_frm(pf); } - cn10k_mcs_free(pf); - #ifdef CONFIG_DCB /* Disable PFC config */ if (pf->pfc_en) { @@ -3088,6 +3086,7 @@ static void otx2_remove(struct pci_dev *pdev) otx2_unregister_dl(pf); unregister_netdev(netdev); + cn10k_mcs_free(pf); otx2_sriov_disable(pf->pdev); otx2_sriov_vfcfg_cleanup(pf); if (pf->otx2_wq)