From patchwork Fri Nov 11 07:08:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ziyang Xuan (William)" X-Patchwork-Id: 13039761 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 0130FC43219 for ; Fri, 11 Nov 2022 07:08:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233161AbiKKHIo (ORCPT ); Fri, 11 Nov 2022 02:08:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47042 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233176AbiKKHIk (ORCPT ); Fri, 11 Nov 2022 02:08:40 -0500 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E630BF7F; Thu, 10 Nov 2022 23:08:32 -0800 (PST) Received: from canpemm500006.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4N7qYD1nsKz15MX1; Fri, 11 Nov 2022 15:08:16 +0800 (CST) Received: from localhost.localdomain (10.175.104.82) by canpemm500006.china.huawei.com (7.192.105.130) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 11 Nov 2022 15:08:30 +0800 From: Ziyang Xuan To: , , , , , , , , Subject: [PATCH net 1/4] octeon_ep: delete unnecessary napi rollback under set_queues_err in octep_open() Date: Fri, 11 Nov 2022 15:08:27 +0800 Message-ID: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.175.104.82] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To canpemm500006.china.huawei.com (7.192.105.130) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org octep_napi_add() and octep_napi_enable() are all after netif_set_real_num_{tx,rx}_queues() in octep_open(), so it is unnecessary napi rollback under set_queues_err. Delete them to fix it. Fixes: 37d79d059606 ("octeon_ep: add Tx/Rx processing and interrupt support") Signed-off-by: Ziyang Xuan --- drivers/net/ethernet/marvell/octeon_ep/octep_main.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c index 9089adcb75f9..7985a748fafe 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c @@ -527,8 +527,6 @@ static int octep_open(struct net_device *netdev) return 0; set_queues_err: - octep_napi_disable(oct); - octep_napi_delete(oct); octep_clean_irqs(oct); setup_irq_err: octep_free_oqs(oct); From patchwork Fri Nov 11 07:08:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ziyang Xuan (William)" X-Patchwork-Id: 13039762 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 1F947C433FE for ; Fri, 11 Nov 2022 07:09:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232912AbiKKHJM (ORCPT ); Fri, 11 Nov 2022 02:09:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47116 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233202AbiKKHJB (ORCPT ); Fri, 11 Nov 2022 02:09:01 -0500 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F240716E7; Thu, 10 Nov 2022 23:08:53 -0800 (PST) Received: from canpemm500006.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4N7qYb4FdjzmVGh; Fri, 11 Nov 2022 15:08:35 +0800 (CST) Received: from localhost.localdomain (10.175.104.82) by canpemm500006.china.huawei.com (7.192.105.130) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 11 Nov 2022 15:08:50 +0800 From: Ziyang Xuan To: , , , , , , , , Subject: [PATCH net 2/4] octeon_ep: ensure octep_get_link_status() successfully before octep_link_up() Date: Fri, 11 Nov 2022 15:08:47 +0800 Message-ID: <7e653ae15e1368ff33435da7c6df94d5e5d4fad0.1668150074.git.william.xuanziyang@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.175.104.82] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To canpemm500006.china.huawei.com (7.192.105.130) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org octep_get_link_status() can fail because send mbox message failed, then octep_get_link_status() will return ret less than 0. Excute octep_link_up() as long as ret is not equal to 0 in octep_open() now. That is not correct. The value type of link.state is enum octep_ctrl_net_state. Positive value represents up. Excute octep_link_up() when ret is bigger than 0. Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization") Signed-off-by: Ziyang Xuan --- drivers/net/ethernet/marvell/octeon_ep/octep_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c index 7985a748fafe..546bcebf4462 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c @@ -521,7 +521,7 @@ static int octep_open(struct net_device *netdev) octep_oq_dbell_init(oct); ret = octep_get_link_status(oct); - if (ret) + if (ret > 0) octep_link_up(netdev); return 0; From patchwork Fri Nov 11 07:09:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ziyang Xuan (William)" X-Patchwork-Id: 13039763 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 9F637C4332F for ; Fri, 11 Nov 2022 07:09:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232588AbiKKHJf (ORCPT ); Fri, 11 Nov 2022 02:09:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233170AbiKKHJ3 (ORCPT ); Fri, 11 Nov 2022 02:09:29 -0500 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0189318351; Thu, 10 Nov 2022 23:09:28 -0800 (PST) Received: from canpemm500006.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4N7qZL6kZnzRp9n; Fri, 11 Nov 2022 15:09:14 +0800 (CST) Received: from localhost.localdomain (10.175.104.82) by canpemm500006.china.huawei.com (7.192.105.130) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 11 Nov 2022 15:09:26 +0800 From: Ziyang Xuan To: , , , , , , , , Subject: [PATCH net 3/4] octeon_ep: fix potential memory leak in octep_device_setup() Date: Fri, 11 Nov 2022 15:09:23 +0800 Message-ID: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.175.104.82] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500006.china.huawei.com (7.192.105.130) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org When occur unsupported_dev and mbox init errors, it did not free oct->conf and iounmap() oct->mmio[i].hw_addr. That would trigger memory leak problem. Add kfree() for oct->conf and iounmap() for oct->mmio[i].hw_addr under unsupported_dev and mbox init errors to fix the problem. Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization") Signed-off-by: Ziyang Xuan --- drivers/net/ethernet/marvell/octeon_ep/octep_main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c index 546bcebf4462..53f288c32238 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c @@ -956,7 +956,7 @@ int octep_device_setup(struct octep_device *oct) ret = octep_ctrl_mbox_init(ctrl_mbox); if (ret) { dev_err(&pdev->dev, "Failed to initialize control mbox\n"); - return -1; + goto unsupported_dev; } oct->ctrl_mbox_ifstats_offset = OCTEP_CTRL_MBOX_SZ(ctrl_mbox->h2fq.elem_sz, ctrl_mbox->h2fq.elem_cnt, @@ -966,6 +966,10 @@ int octep_device_setup(struct octep_device *oct) return 0; unsupported_dev: + for (i = 0; i < OCTEP_MMIO_REGIONS; i++) + iounmap(oct->mmio[i].hw_addr); + + kfree(oct->conf); return -1; } From patchwork Fri Nov 11 07:09:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ziyang Xuan (William)" X-Patchwork-Id: 13039764 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 B0B58C4332F for ; Fri, 11 Nov 2022 07:09:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233174AbiKKHJp (ORCPT ); Fri, 11 Nov 2022 02:09:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233171AbiKKHJn (ORCPT ); Fri, 11 Nov 2022 02:09:43 -0500 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B647918383; Thu, 10 Nov 2022 23:09:40 -0800 (PST) Received: from canpemm500006.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4N7qZJ5vkXzHvgZ; Fri, 11 Nov 2022 15:09:12 +0800 (CST) Received: from localhost.localdomain (10.175.104.82) by canpemm500006.china.huawei.com (7.192.105.130) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 11 Nov 2022 15:09:38 +0800 From: Ziyang Xuan To: , , , , , , , , Subject: [PATCH net 4/4] octeon_ep: ensure get mac address successfully before eth_hw_addr_set() Date: Fri, 11 Nov 2022 15:09:35 +0800 Message-ID: <223ee27c25cc506b8d49c87e8a95b06c6eb2b971.1668150074.git.william.xuanziyang@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.175.104.82] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To canpemm500006.china.huawei.com (7.192.105.130) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org octep_get_mac_addr() can fail because send mbox message failed. If this happens, octep_dev->mac_addr will be zero. It should not continue to initialize. Add exception handling for octep_get_mac_addr() to fix it. Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization") Signed-off-by: Ziyang Xuan --- drivers/net/ethernet/marvell/octeon_ep/octep_main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c index 53f288c32238..b45dd7f04e21 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c @@ -1072,7 +1072,11 @@ static int octep_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netdev->max_mtu = OCTEP_MAX_MTU; netdev->mtu = OCTEP_DEFAULT_MTU; - octep_get_mac_addr(octep_dev, octep_dev->mac_addr); + err = octep_get_mac_addr(octep_dev, octep_dev->mac_addr); + if (err) { + dev_err(&pdev->dev, "Failed to get mac address\n"); + goto register_dev_err; + } eth_hw_addr_set(netdev, octep_dev->mac_addr); err = register_netdev(netdev);