virtio_pci_modern: __force cast the notify mapping

When switching virtio_pci_modern to use a helper for mappings we lost an
__iomem tag. We should restore it.

However, virtio_pci_modern is playing tricks by hiding an iomem pointer
in a regular vq->priv pointer. Which is okay as long as it's
all contained within a single file, but we need to __force cast
the value otherwise we'll get sparse warnings.
Reported-by: Nkernel test robot <lkp@intel.com>
Fixes: 7dca6c0e ("virtio-pci library: switch to use vp_modern_map_vq_notify()")
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
上级 56190031
无相关合并请求
......@@ -224,7 +224,7 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
virtqueue_get_avail_addr(vq),
virtqueue_get_used_addr(vq));
vq->priv = vp_modern_map_vq_notify(mdev, index, NULL);
vq->priv = (void __force *)vp_modern_map_vq_notify(mdev, index, NULL);
if (!vq->priv) {
err = -ENOMEM;
goto err_map_notify;
......
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