From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiner Kallweit Subject: Problems since commit Recognize that Interrupt Line 255 means "not connected" Date: Sat, 6 Feb 2016 00:00:32 +0100 Message-ID: <56B52990.3030103@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wm0-f54.google.com ([74.125.82.54]:36330 "EHLO mail-wm0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753392AbcBEXAv (ORCPT ); Fri, 5 Feb 2016 18:00:51 -0500 Received: by mail-wm0-f54.google.com with SMTP id p63so46069944wmp.1 for ; Fri, 05 Feb 2016 15:00:51 -0800 (PST) Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Chen Fan Cc: "Rafael J. Wysocki" , linux-acpi@vger.kernel.org Since commit a44c386a361e "x86/PCI/ACPI: Recognize that Interrupt Line 255 means "not connected"" I get several "PCI INT not connected" warnings on a Zotac CI321 and EHCI failes to load: ehci-pci 0000:00:1d.0: PCI INT not connected ehci-pci 0000:00:1d.0: EHCI Host Controller ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 3 ehci-pci 0000:00:1d.0: debug port 2 ehci-pci 0000:00:1d.0: cache line size of 64 is not supported ehci-pci 0000:00:1d.0: request interrupt -2147483648 failed ehci-pci 0000:00:1d.0: USB bus 3 deregistered ehci-pci 0000:00:1d.0: init 0000:00:1d.0 fail, -107 ehci-pci: probe of 0000:00:1d.0 failed with error -107 XHCI brings the "PCI INT not connected" warning too but loads properly (most likely because it uses a MSI interrupt). Not sure whether this commit is to blame or a broken BIOS. Just let me know in case you need additional information. Regards, Heiner