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-rw-r--r--drivers/vhost/test.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/vhost/test.h b/drivers/vhost/test.h
index 1fef5df82153..822bc4bee03a 100644
--- a/drivers/vhost/test.h
+++ b/drivers/vhost/test.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef LINUX_VHOST_TEST_H
#define LINUX_VHOST_TEST_H
/* Start a given test on the virtio null device. 0 stops all tests. */
#define VHOST_TEST_RUN _IOW(VHOST_VIRTIO, 0x31, int)
+#define VHOST_TEST_SET_BACKEND _IOW(VHOST_VIRTIO, 0x32, int)
#endif