linux-kernel - [PATCH v3 2/2] vfio: Use device_iommu

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Message-Id: <4ea5eb64246f1ee188d1a61c3e93b37756932eb7.1656092606.git.robin.murphy@arm.com>
Date:   Fri, 24 Jun 2022 18:59:35 +0100
From:   Robin Murphy <robin.murphy@....com>
To:     alex.williamson@...hat.com, cohuck@...hat.com
Cc:     kvm@...r.kernel.org, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, jgg@...dia.com,
        baolu.lu@...ux.intel.com, iommu@...ts.linux.dev
Subject: [PATCH v3 2/2] vfio: Use device_iommu_capable()

Use the new interface to check the capabilities for our device
specifically.

Reviewed-by: Lu Baolu <baolu.lu@...ux.intel.com>
Signed-off-by: Robin Murphy <robin.murphy@....com>
---
 drivers/vfio/vfio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 61e71c1154be..4c06b571eaba 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -605,7 +605,7 @@ int vfio_register_group_dev(struct vfio_device *device)
 	 * VFIO always sets IOMMU_CACHE because we offer no way for userspace to
 	 * restore cache coherency.
 	 */
-	if (!iommu_capable(device->dev->bus, IOMMU_CAP_CACHE_COHERENCY))
+	if (!device_iommu_capable(device->dev, IOMMU_CAP_CACHE_COHERENCY))
 		return -EINVAL;
 
 	return __vfio_register_dev(device,
-- 
2.36.1.dirty