From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755365Ab3IKE5x (ORCPT ); Wed, 11 Sep 2013 00:57:53 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:22176 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754160Ab3IKE4v (ORCPT ); Wed, 11 Sep 2013 00:56:51 -0400 X-Authority-Analysis: v=2.0 cv=V4T/IJbi c=1 sm=0 a=Sro2XwOs0tJUSHxCKfOySw==:17 a=Drc5e87SC40A:10 a=Ciwy3NGCPMMA:10 a=eixHX7o2HFQA:10 a=5SG0PmZfjMsA:10 a=bbbx4UPp9XUA:10 a=meVymXHHAAAA:8 a=KGjhK52YXX0A:10 a=6RvMgk8FxMsA:10 a=QyXUC8HyAAAA:8 a=VwQbUJbxAAAA:8 a=5cIBTxRJ4pZzZk2xk6UA:9 a=dGJ0OcVc7YAA:10 a=jeBq3FmKZ4MA:10 a=Sro2XwOs0tJUSHxCKfOySw==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 67.255.60.225 Message-Id: <20130911042930.860886823@goodmis.org> User-Agent: quilt/0.60-1 Date: Wed, 11 Sep 2013 00:30:59 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Arjan van de Ven , Emmanuel Grumbach , Johannes Berg Subject: [232/251] iwlwifi: pcie: disable L1 Active after pci_enable_device References: <20130911042707.738353451@goodmis.org> Content-Disposition: inline; filename=0232-iwlwifi-pcie-disable-L1-Active-after-pci_enable_devi.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.6.11.9-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Emmanuel Grumbach [ Upstream commit eabc4ac5d7606a57ee2b7308cb7323ea8f60183b ] As Arjan pointed out, we mustn't do anything related to PCI configuration until the device is properly enabled with pci_enable_device(). Cc: stable@vger.kernel.org Reported-by: Arjan van de Ven Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg Signed-off-by: Steven Rostedt --- drivers/net/wireless/iwlwifi/pcie/trans.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index dbeebef..d7eeb96 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -2100,16 +2100,16 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, spin_lock_init(&trans_pcie->irq_lock); init_waitqueue_head(&trans_pcie->ucode_write_waitq); - /* W/A - seems to solve weird behavior. We need to remove this if we - * don't want to stay in L1 all the time. This wastes a lot of power */ - pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | - PCIE_LINK_STATE_CLKPM); - if (pci_enable_device(pdev)) { err = -ENODEV; goto out_no_pci; } + /* W/A - seems to solve weird behavior. We need to remove this if we + * don't want to stay in L1 all the time. This wastes a lot of power */ + pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | + PCIE_LINK_STATE_CLKPM); + pci_set_master(pdev); err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); -- 1.7.10.4