[PATCH 04/20] vhost-vdpa: Use iommu_user_domain_alloc()

[Lu Baolu]

Replace iommu_domain_alloc() with iommu_user_domain_alloc().

Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
 drivers/vhost/vdpa.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 63a53680a85c..7784218fd9d2 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -1312,26 +1312,21 @@ static int vhost_vdpa_alloc_domain(struct vhost_vdpa *v)
        struct vdpa_device *vdpa = v->vdpa;
        const struct vdpa_config_ops *ops = vdpa->config;
        struct device *dma_dev = vdpa_get_dma_dev(vdpa);
-       const struct bus_type *bus;
        int ret;
 
        /* Device want to do DMA by itself */
        if (ops->set_map || ops->dma_map)
                return 0;
 
-       bus = dma_dev->bus;
-       if (!bus)
-               return -EFAULT;
-
        if (!device_iommu_capable(dma_dev, IOMMU_CAP_CACHE_COHERENCY)) {
                dev_warn_once(&v->dev,
                              "Failed to allocate domain, device is not IOMMU 
cache coherent capable\n");
                return -ENOTSUPP;
        }
 
-       v->domain = iommu_domain_alloc(bus);
-       if (!v->domain)
-               return -EIO;
+       v->domain = iommu_user_domain_alloc(dma_dev, 0);
+       if (IS_ERR(v->domain))
+               return PTR_ERR(v->domain);
 
        ret = iommu_attach_device(v->domain, dma_dev);
        if (ret)
-- 
2.34.1