commitbf9f80cf0cupstream. This driver *can* be a module, but then its parameters (socket path) are untrusted data from inside the VM, and that isn't allowed. Allow the code to only be built-in to avoid that. Fixes:5d38f32499("um: drivers: Add virtio vhost-user driver") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Anton Ivanov <anton.ivanov@cambridgegreys.co.uk> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>