Messages in this thread | | | Date | Thu, 21 Apr 2022 18:12:45 +0100 | From | Jean-Philippe Brucker <> | Subject | Re: [PATCH 12/13] iommu/virtio: Clean up bus_set_iommu() |
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On Thu, Apr 14, 2022 at 01:42:41PM +0100, Robin Murphy wrote: > Stop calling bus_set_iommu() since it's now unnecessary, and simplify > the probe failure path accordingly. > > Signed-off-by: Robin Murphy <robin.murphy@arm.com> > --- > drivers/iommu/virtio-iommu.c | 24 ------------------------ > 1 file changed, 24 deletions(-) > > diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c > index 25be4b822aa0..371f8657c0ce 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>
<linux/platform_device.h> isn't needed anymore either. In any case it looks great, thanks
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
and tested on QEMU (so only PCI for now)
> @@ -1146,26 +1145,6 @@ 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 +1153,6 @@ 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); > > -- > 2.28.0.dirty >
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