On 2020/1/17 下午12:12, Randy Dunlap wrote:

On 1/16/20 4:42 AM, Jason Wang wrote:

quoted

diff --git a/drivers/virtio/vdpa/Kconfig b/drivers/virtio/vdpa/Kconfig
index 3032727b4d98..12ec25d48423 100644
--- a/drivers/virtio/vdpa/Kconfig
+++ b/drivers/virtio/vdpa/Kconfig

@@ -7,3 +7,20 @@ config VDPA
            datapath which complies with virtio specifications with
            vendor specific control path.
  
+menuconfig VDPA_MENU
+	bool "VDPA drivers"
+	default n
+
+if VDPA_MENU
+
+config VDPA_SIM
+	tristate "vDPA device simulator"
+        select VDPA
+        default n
+        help
+          vDPA networking device simulator which loop TX traffic back

	                                            loops

quoted

+          to RX. This device is used for testing, prototyping and
+          development of vDPA.
+
+endif # VDPA_MENU

Most lines above use spaces for indentation, while they should use
tab + 2 spaces.

Right, will fix.

Thanks