Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753759Ab2JBHul (ORCPT ); Tue, 2 Oct 2012 03:50:41 -0400 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:45764 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753684Ab2JBHuj (ORCPT ); Tue, 2 Oct 2012 03:50:39 -0400 X-SecurityPolicyCheck: OK by SHieldMailChecker v1.7.4 From: Takao Indoh To: linux-pci@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org Cc: martin.wilck@ts.fujitsu.com, kexec@lists.infradead.org, hbabu@us.ibm.com, mingo@redhat.com, vgoyal@redhat.com, ishii.hironobu@jp.fujitsu.com, hpa@zytor.com, bhelgaas@google.com, tglx@linutronix.de, Takao Indoh Message-Id: <20121002074451.204.86668.sendpatchset@indoh> In-Reply-To: <20121002074434.204.47750.sendpatchset@indoh> References: <20121002074434.204.47750.sendpatchset@indoh> Subject: [PATCH v2 2/2] x86, pci: Enable PCI INTx when MSI is disabled Date: Tue, 2 Oct 2012 16:50:37 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1151 Lines: 33 This patch enables INTx if MSI is disabled in pcibios_enable_device(). In normal case interrupt disable bit in command register is 0b on boot time, but in case of kdump, this bit may be 1b. It causes problems of some drivers. At leaset I confirmed mptsas driver does not work in such a case. This patch fix this problem. Signed-off-by: Takao Indoh --- arch/x86/pci/common.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 720e973..2bb7ecc 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -615,8 +615,10 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) if ((err = pci_enable_resources(dev, mask)) < 0) return err; - if (!pci_dev_msi_enabled(dev)) + if (!pci_dev_msi_enabled(dev)) { + pci_intx(dev, true); return pcibios_enable_irq(dev); + } return 0; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/