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b=xj4d/SBgQsp8jyLmGhpZHO9W2SRqRPB9m2qmn4tbqeiau0JdjHYDVCFcE7b6DE1MzzFZpA5qBWOCJdaR4/9ksYyxI2flJp+F0fubMqRiT0wfcxoHyVd4ViO+GkB6oG+PZRO5ykIJD4qWCJ0OdSNnyM0gRUsnW/sprGs6xtaNH3ofZBpMjuI7/NXie4M9Kxwt67gyfSQw6EocMm74SXLW+gR6p8Qtr2iV+nm9c5MJniUzLI6T8cF3SzX5YtI4H8AC/udu7nJumHNyObJoiHyBvCIavw8O7IbGMzfF/RjX24lQWV1OZ0Mqey3mYKs3hyKU8QnWLMr3zC2BmdkcoGmeyg== From: John Levon To: qemu-devel@nongnu.org Cc: Alex Williamson , Thanos Makatos , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , John Levon Subject: [PATCH 2/2] vfio: quieten dma-buf warning Date: Tue, 17 Mar 2026 19:53:23 +0000 Message-ID: <20260317195323.776669-3-john.levon@nutanix.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260317195323.776669-1-john.levon@nutanix.com> References: <20260317195323.776669-1-john.levon@nutanix.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: LO4P123CA0631.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:294::17) To CH2PR02MB6760.namprd02.prod.outlook.com (2603:10b6:610:7f::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR02MB6760:EE_|DM3PR02MB10293:EE_ X-MS-Office365-Filtering-Correlation-Id: a5222145-f431-46a5-9c9b-08de845edee3 x-proofpoint-crosstenant: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" Don't report this error every time, as it is specific to the kernel vfio implementation; we shouldn't warn about things that always happen, such as when this is backed by vfio-user. Signed-off-by: John Levon --- hw/vfio/region.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/hw/vfio/region.c b/hw/vfio/region.c index 47fdc2df34..1d442f3f48 100644 --- a/hw/vfio/region.c +++ b/hw/vfio/region.c @@ -316,8 +316,6 @@ static bool vfio_region_create_dma_buf(VFIORegion *regi= on, Error **errp) ret =3D vfio_device_get_feature(vbasedev, feature); if (ret < 0) { if (ret =3D=3D -ENOTTY) { - warn_report_once("VFIO dma-buf not supported in kernel: " - "PCI BAR IOMMU mappings may fail"); return true; } /* P2P DMA or exposing device memory use cases are not supported. = */ --=20 2.43.0