Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752891AbcKUCHO (ORCPT ); Sun, 20 Nov 2016 21:07:14 -0500 Received: from mail-oi0-f65.google.com ([209.85.218.65]:34871 "EHLO mail-oi0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752075AbcKUCHK (ORCPT ); Sun, 20 Nov 2016 21:07:10 -0500 From: AceLan Kao To: "Rafael J. Wysocki" , Len Brown , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ACPI: Override rev for DELL Latitude 3350 Date: Mon, 21 Nov 2016 10:07:05 +0800 Message-Id: <1479694025-13372-1-git-send-email-acelan.kao@canonical.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1324 Lines: 40 The ethernet network fails to work on DELL Latitude 3350 after this commit ea7d521 Revert 'Revert "ACPICA: Permanently set _REV to the value '2'."' dmesg shows r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control pci 0000:00:1c.2: PCI INT C: failed to register GSI pci 0000:00:1c.2: Error enabling bridge (-16), continuing r8169 0000:03:00.0: PCI INT A: failed to register GSI r8169 0000:03:00.0 (unnamed net_device) (uninitialized): enable failure r8169: probe of 0000:03:00.0 failed with error -16 So override the ACPI _REV for this machine to fix the issue. Signed-off-by: AceLan Kao --- drivers/acpi/blacklist.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index bdc67ba..a8c10f2 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -160,6 +160,14 @@ static struct dmi_system_id acpi_rev_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"), }, }, + { + .callback = dmi_enable_rev_override, + .ident = "DELL Latitude 3350", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Latitude 3350"), + }, + }, #endif {} }; -- 2.7.4