linux-kernel - [PATCH 4.4 73/76] ACPI / blacklist: Make Dell Latitude 3350 ethernet work

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Date:   Tue, 28 Mar 2017 14:31:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Michael Pobega <mpobega@...erware.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Sasha Levin <alexander.levin@...izon.com>,
        Sumit Semwal <sumit.semwal@...aro.org>
Subject: [PATCH 4.4 73/76] ACPI / blacklist: Make Dell Latitude 3350 ethernet work

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sumit Semwal <sumit.semwal@...aro.org>


From: Michael Pobega <mpobega@...erware.com>

[ Upstream commit 708f5dcc21ae9b35f395865fc154b0105baf4de4 ]

The Dell Latitude 3350's ethernet card attempts to use a reserved
IRQ (18), resulting in ACPI being unable to enable the ethernet.

Adding it to acpi_rev_dmi_table[] helps to work around this problem.

Signed-off-by: Michael Pobega <mpobega@...erware.com>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sumit Semwal <sumit.semwal@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/acpi/blacklist.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -362,6 +362,18 @@ static struct dmi_system_id acpi_osi_dmi
 		      DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3520"),
 		},
 	},
+	/*
+	 * Resolves a quirk with the Dell Latitude 3350 that
+	 * causes the ethernet adapter to not function.
+	 */
+	{
+	 .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
 	{}
 };