virtio_features.h uses WARN_ON_ONCE and memset so it must
include linux/bug.h and linux/string.h

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/linux/virtio_features.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/virtio_features.h b/include/linux/virtio_features.h
index ea2ad8717882..ce59ea91f474 100644
--- a/include/linux/virtio_features.h
+++ b/include/linux/virtio_features.h
@@ -3,6 +3,8 @@
 #define _LINUX_VIRTIO_FEATURES_H
 
 #include <linux/bits.h>
+#include <linux/bug.h>
+#include <linux/string.h>
 
 #define VIRTIO_FEATURES_U64S	2
 #define VIRTIO_FEATURES_BITS	(VIRTIO_FEATURES_U64S * 64)
-- 
MST