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Message-ID: <20241004182200.3670903-28-sashal@kernel.org>
Date: Fri,  4 Oct 2024 14:20:26 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Alex Williamson <alex.williamson@...hat.com>,
	zdravko delineshev <delineshev@...look.com>,
	Krzysztof Wilczyński <kwilczynski@...nel.org>,
	Sasha Levin <sashal@...nel.org>,
	bhelgaas@...gle.com,
	linux-pci@...r.kernel.org
Subject: [PATCH AUTOSEL 6.10 28/70] PCI: Mark Creative Labs EMU20k2 INTx masking as broken

From: Alex Williamson <alex.williamson@...hat.com>

[ Upstream commit 2910306655a7072640021563ec9501bfa67f0cb1 ]

Per user reports, the Creative Labs EMU20k2 (Sound Blaster X-Fi
Titanium Series) generates spurious interrupts when used with
vfio-pci unless DisINTx masking support is disabled.

Thus, quirk the device to mark INTx masking as broken.

Closes: https://lore.kernel.org/all/VI1PR10MB8207C507DB5420AB4C7281E0DB9A2@VI1PR10MB8207.EURPRD10.PROD.OUTLOOK.COM
Link: https://lore.kernel.org/linux-pci/20240912215331.839220-1-alex.williamson@redhat.com
Reported-by: zdravko delineshev <delineshev@...look.com>
Signed-off-by: Alex Williamson <alex.williamson@...hat.com>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/pci/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index e616add85b134..d2875e04378a4 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3608,6 +3608,8 @@ DECLARE_PCI_FIXUP_FINAL(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
 			quirk_broken_intx_masking);
 DECLARE_PCI_FIXUP_FINAL(0x1b7c, 0x0004, /* Ceton InfiniTV4 */
 			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2,
+			quirk_broken_intx_masking);
 
 /*
  * Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10)
-- 
2.43.0


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