From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1330670-1519988864-2-15491764422373650549 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.249, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES unknown, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1519988864; b=KQq8WEaQn+brzu3WILlzAbLwsxnSNVFSTG1Geafjvao50on 0MaF1+jFVhlBtBNSgaonyxGuorZtMTibijO55m5rJuY4C71gbcsnGF/x5ztZYW5S 9yS9zB9jS98efWZUV+U5vPoeFobzT0WsQAe0UVsW5UTF4yeH7xS+bLWB2KHny0z/ OizLNAw5iWGXPQP2tBbd8K3M8OR246hkymk2gGWAl7m6UVFUfvezf7ecuPAvzjaG bacMwiaydvWU9JnhK4D1xJ4J8sGoPsDLv7yDOGLHtZ6vpv9uH2Xj9d7bHTaZVWdt trOq6qZRlggARrdi4Ft8LalnfuiG7ioKqsSEpTg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1519988864; bh=cxjyJ2hEYlJNQ1cD8lSQsftFQr s4hW8wDJut7qGu8lc=; b=opAdfGCkia4s5FM/YRW1QEsQq07o/vFPZa8Wi+xJXP 5h6Hy4IXTZtoEY7DGYmy2/vPLq+XJV1s8/ij9N9tIhY6I58rkA5gsNqTrWJzLw50 0OiSnRUpoX1e1V4SkTyoHGXlOWqTdiIRG8cbHUmIK66uVThxeBAa7RnisAAXcWYW o3NmjmD26Dhudxd2kac2be/Jay8guole+YFvgSSkUMy7j2Sb/lUpZAK4ti1Esly0 gVq35jP7kkmVXFaSpAB2YSKbr7FuO7StR6N8GqqFGS5KTdaDcjcthRnTChUOwoWl zSLZDY8n88xn8FttGdNMd/ucDhS8cKhmWgVEhqfZPhVA== ARC-Authentication-Results: i=1; mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Authentication-Results: mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423566AbeCBIyy (ORCPT ); Fri, 2 Mar 2018 03:54:54 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:50550 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423524AbeCBIys (ORCPT ); Fri, 2 Mar 2018 03:54:48 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tushar Dave , Fengguang Wu , Jeff Kirsher , Sasha Levin Subject: [PATCH 4.4 22/34] e1000: fix disabling already-disabled warning Date: Fri, 2 Mar 2018 09:51:18 +0100 Message-Id: <20180302084437.471716497@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180302084435.842679610@linuxfoundation.org> References: <20180302084435.842679610@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tushar Dave [ Upstream commit 0b76aae741abb9d16d2c0e67f8b1e766576f897d ] This patch adds check so that driver does not disable already disabled device. [ 44.637743] advantechwdt: Unexpected close, not stopping watchdog! [ 44.997548] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input6 [ 45.013419] e1000 0000:00:03.0: disabling already-disabled device [ 45.013447] ------------[ cut here ]------------ [ 45.014868] WARNING: CPU: 1 PID: 71 at drivers/pci/pci.c:1641 pci_disable_device+0xa1/0x105: pci_disable_device at drivers/pci/pci.c:1640 [ 45.016171] CPU: 1 PID: 71 Comm: rcu_perf_shutdo Not tainted 4.14.0-01330-g3c07399 #1 [ 45.017197] task: ffff88011bee9e40 task.stack: ffffc90000860000 [ 45.017987] RIP: 0010:pci_disable_device+0xa1/0x105: pci_disable_device at drivers/pci/pci.c:1640 [ 45.018603] RSP: 0000:ffffc90000863e30 EFLAGS: 00010286 [ 45.019282] RAX: 0000000000000035 RBX: ffff88013a230008 RCX: 0000000000000000 [ 45.020182] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000203 [ 45.021084] RBP: ffff88013a3f31e8 R08: 0000000000000001 R09: 0000000000000000 [ 45.021986] R10: ffffffff827ec29c R11: 0000000000000002 R12: 0000000000000001 [ 45.022946] R13: ffff88013a230008 R14: ffff880117802b20 R15: ffffc90000863e8f [ 45.023842] FS: 0000000000000000(0000) GS:ffff88013fd00000(0000) knlGS:0000000000000000 [ 45.024863] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.025583] CR2: ffffc900006d4000 CR3: 000000000220f000 CR4: 00000000000006a0 [ 45.026478] Call Trace: [ 45.026811] __e1000_shutdown+0x1d4/0x1e2: __e1000_shutdown at drivers/net/ethernet/intel/e1000/e1000_main.c:5162 [ 45.027344] ? rcu_perf_cleanup+0x2a1/0x2a1: rcu_perf_shutdown at kernel/rcu/rcuperf.c:627 [ 45.027883] e1000_shutdown+0x14/0x3a: e1000_shutdown at drivers/net/ethernet/intel/e1000/e1000_main.c:5235 [ 45.028351] device_shutdown+0x110/0x1aa: device_shutdown at drivers/base/core.c:2807 [ 45.028858] kernel_power_off+0x31/0x64: kernel_power_off at kernel/reboot.c:260 [ 45.029343] rcu_perf_shutdown+0x9b/0xa7: rcu_perf_shutdown at kernel/rcu/rcuperf.c:637 [ 45.029852] ? __wake_up_common_lock+0xa2/0xa2: autoremove_wake_function at kernel/sched/wait.c:376 [ 45.030414] kthread+0x126/0x12e: kthread at kernel/kthread.c:233 [ 45.030834] ? __kthread_bind_mask+0x8e/0x8e: kthread at kernel/kthread.c:190 [ 45.031399] ? ret_from_fork+0x1f/0x30: ret_from_fork at arch/x86/entry/entry_64.S:443 [ 45.031883] ? kernel_init+0xa/0xf5: kernel_init at init/main.c:997 [ 45.032325] ret_from_fork+0x1f/0x30: ret_from_fork at arch/x86/entry/entry_64.S:443 [ 45.032777] Code: 00 48 85 ed 75 07 48 8b ab a8 00 00 00 48 8d bb 98 00 00 00 e8 aa d1 11 00 48 89 ea 48 89 c6 48 c7 c7 d8 e4 0b 82 e8 55 7d da ff <0f> ff b9 01 00 00 00 31 d2 be 01 00 00 00 48 c7 c7 f0 b1 61 82 [ 45.035222] ---[ end trace c257137b1b1976ef ]--- [ 45.037838] ACPI: Preparing to enter system sleep state S5 Signed-off-by: Tushar Dave Tested-by: Fengguang Wu Signed-off-by: Jeff Kirsher Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/e1000/e1000.h | 3 +- drivers/net/ethernet/intel/e1000/e1000_main.c | 27 +++++++++++++++++++++----- 2 files changed, 24 insertions(+), 6 deletions(-) --- a/drivers/net/ethernet/intel/e1000/e1000.h +++ b/drivers/net/ethernet/intel/e1000/e1000.h @@ -331,7 +331,8 @@ struct e1000_adapter { enum e1000_state_t { __E1000_TESTING, __E1000_RESETTING, - __E1000_DOWN + __E1000_DOWN, + __E1000_DISABLED }; #undef pr_fmt --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -940,7 +940,7 @@ static int e1000_init_hw_struct(struct e static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *netdev; - struct e1000_adapter *adapter; + struct e1000_adapter *adapter = NULL; struct e1000_hw *hw; static int cards_found = 0; @@ -950,6 +950,7 @@ static int e1000_probe(struct pci_dev *p u16 tmp = 0; u16 eeprom_apme_mask = E1000_EEPROM_APME; int bars, need_ioport; + bool disable_dev = false; /* do not allocate ioport bars when not needed */ need_ioport = e1000_is_need_ioport(pdev); @@ -1250,11 +1251,13 @@ err_mdio_ioremap: iounmap(hw->ce4100_gbe_mdio_base_virt); iounmap(hw->hw_addr); err_ioremap: + disable_dev = !test_and_set_bit(__E1000_DISABLED, &adapter->flags); free_netdev(netdev); err_alloc_etherdev: pci_release_selected_regions(pdev, bars); err_pci_reg: - pci_disable_device(pdev); + if (!adapter || disable_dev) + pci_disable_device(pdev); return err; } @@ -1272,6 +1275,7 @@ static void e1000_remove(struct pci_dev struct net_device *netdev = pci_get_drvdata(pdev); struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; + bool disable_dev; e1000_down_and_stop(adapter); e1000_release_manageability(adapter); @@ -1290,9 +1294,11 @@ static void e1000_remove(struct pci_dev iounmap(hw->flash_address); pci_release_selected_regions(pdev, adapter->bars); + disable_dev = !test_and_set_bit(__E1000_DISABLED, &adapter->flags); free_netdev(netdev); - pci_disable_device(pdev); + if (disable_dev) + pci_disable_device(pdev); } /** @@ -5135,7 +5141,8 @@ static int __e1000_shutdown(struct pci_d if (netif_running(netdev)) e1000_free_irq(adapter); - pci_disable_device(pdev); + if (!test_and_set_bit(__E1000_DISABLED, &adapter->flags)) + pci_disable_device(pdev); return 0; } @@ -5179,6 +5186,10 @@ static int e1000_resume(struct pci_dev * pr_err("Cannot enable PCI device from suspend\n"); return err; } + + /* flush memory to make sure state is correct */ + smp_mb__before_atomic(); + clear_bit(__E1000_DISABLED, &adapter->flags); pci_set_master(pdev); pci_enable_wake(pdev, PCI_D3hot, 0); @@ -5253,7 +5264,9 @@ static pci_ers_result_t e1000_io_error_d if (netif_running(netdev)) e1000_down(adapter); - pci_disable_device(pdev); + + if (!test_and_set_bit(__E1000_DISABLED, &adapter->flags)) + pci_disable_device(pdev); /* Request a slot slot reset. */ return PCI_ERS_RESULT_NEED_RESET; @@ -5281,6 +5294,10 @@ static pci_ers_result_t e1000_io_slot_re pr_err("Cannot re-enable PCI device after reset.\n"); return PCI_ERS_RESULT_DISCONNECT; } + + /* flush memory to make sure state is correct */ + smp_mb__before_atomic(); + clear_bit(__E1000_DISABLED, &adapter->flags); pci_set_master(pdev); pci_enable_wake(pdev, PCI_D3hot, 0);