[PATCH v3 14/15] iommu/virtio: Clean up bus_set_iommu()
From: Robin Murphy <robin.murphy@arm.com>
Date: 2022-07-05 17:09:51
Also in:
linux-iommu, linux-s390, lkml
Subsystem:
iommu subsystem, the rest, virtio iommu driver · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds, Jean-Philippe Brucker
Stop calling bus_set_iommu() since it's now unnecessary, and simplify the probe failure path accordingly. Reviewed-by: Jean-Philippe Brucker <redacted> Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- v3: No change drivers/iommu/virtio-iommu.c | 25 ------------------------- 1 file changed, 25 deletions(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 25be4b822aa0..bcbd10ec4ccb 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c@@ -7,7 +7,6 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -#include <linux/amba/bus.h> #include <linux/delay.h> #include <linux/dma-iommu.h> #include <linux/dma-map-ops.h>
@@ -17,7 +16,6 @@ #include <linux/module.h> #include <linux/of_platform.h> #include <linux/pci.h> -#include <linux/platform_device.h> #include <linux/virtio.h> #include <linux/virtio_config.h> #include <linux/virtio_ids.h>
@@ -1146,26 +1144,6 @@ static int viommu_probe(struct virtio_device *vdev) iommu_device_register(&viommu->iommu, &viommu_ops, parent_dev); -#ifdef CONFIG_PCI - if (pci_bus_type.iommu_ops != &viommu_ops) { - ret = bus_set_iommu(&pci_bus_type, &viommu_ops); - if (ret) - goto err_unregister; - } -#endif -#ifdef CONFIG_ARM_AMBA - if (amba_bustype.iommu_ops != &viommu_ops) { - ret = bus_set_iommu(&amba_bustype, &viommu_ops); - if (ret) - goto err_unregister; - } -#endif - if (platform_bus_type.iommu_ops != &viommu_ops) { - ret = bus_set_iommu(&platform_bus_type, &viommu_ops); - if (ret) - goto err_unregister; - } - vdev->priv = viommu; dev_info(dev, "input address: %u bits\n",
@@ -1174,9 +1152,6 @@ static int viommu_probe(struct virtio_device *vdev) return 0; -err_unregister: - iommu_device_sysfs_remove(&viommu->iommu); - iommu_device_unregister(&viommu->iommu); err_free_vqs: vdev->config->del_vqs(vdev);
--
2.36.1.dirty
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