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Message-Id: <20181108215057.964730708@linuxfoundation.org>
Date:   Thu,  8 Nov 2018 13:50:14 -0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Maik Broemme <mbroemme@...mpq.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 3.18 043/144] PCI: Mark Atheros AR9580 to avoid bus reset

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

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

[ Upstream commit 8e2e03179923479ca0c0b6fdc7c93ecf89bce7a8 ]

Similar to the AR93xx and the AR94xx series, the AR95xx also have the same
quirk for the Bus Reset.  It will lead to instant system reset if the
device is assigned via VFIO to a KVM VM.  I've been able reproduce this
behavior with a MikroTik R11e-2HnD.

Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
Signed-off-by: Maik Broemme <mbroemme@...mpq.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
CC: stable@...r.kernel.org	# v3.14+
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/pci/quirks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 9e86ace95832..0b75b47a5329 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3081,6 +3081,7 @@ static void quirk_no_bus_reset(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
 
 #ifdef CONFIG_ACPI
 /*
-- 
2.17.1



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