It would be better to change'unsigned'to'unsigned int'.

Signed-off-by: Xin Gao <gaoxin@cdjrlc.com>
---
 tools/virtio/ringtest/noring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/virtio/ringtest/noring.c b/tools/virtio/ringtest/noring.c
index ce2440d5ca93..3deb8413c289 100644
--- a/tools/virtio/ringtest/noring.c
+++ b/tools/virtio/ringtest/noring.c
@@ -9,7 +9,7 @@ void alloc_ring(void)
 }
 
 /* guest side */
-int add_inbuf(unsigned len, void *buf, void *datap)
+int add_inbuf(unsigned int len, void *buf, void *datap)
 {
 	return 0;
 }
-- 
2.30.2