linux-kernel - [PATCH 4.19 19/50] sky2: Disable MSI on ASUS P6T

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Message-Id: <20190726152302.551519581@linuxfoundation.org>
Date:   Fri, 26 Jul 2019 17:24:54 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Takashi Iwai <tiwai@...e.de>,
        "David S. Miller" <davem@...emloft.net>,
        Marcus Seyfarth <m.seyfarth@...il.com>
Subject: [PATCH 4.19 19/50] sky2: Disable MSI on ASUS P6T

From: Takashi Iwai <tiwai@...e.de>

[ Upstream commit a261e3797506bd561700be643fe1a85bf81e9661 ]

The onboard sky2 NIC on ASUS P6T WS PRO doesn't work after PM resume
due to the infamous IRQ problem.  Disabling MSI works around it, so
let's add it to the blacklist.

Unfortunately the BIOS on the machine doesn't fill the standard
DMI_SYS_* entry, so we pick up DMI_BOARD_* entries instead.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1142496
Reported-and-tested-by: Marcus Seyfarth <m.seyfarth@...il.com>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/marvell/sky2.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -4947,6 +4947,13 @@ static const struct dmi_system_id msi_bl
 			DMI_MATCH(DMI_PRODUCT_NAME, "P-79"),
 		},
 	},
+	{
+		.ident = "ASUS P6T",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "P6T"),
+		},
+	},
 	{}
 };