diff --git a/[refs] b/[refs]
index 722b19a857cf..5c77ac92da5b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 63019d9329628a5056b3a0c76aee955873dc25c3
+refs/heads/master: 525f5f44c487201c91a11904516ee56dea93644e
diff --git a/trunk/drivers/net/mlx4/mlx4.h b/trunk/drivers/net/mlx4/mlx4.h
index 3d3b6d24d8d3..d9c91a71fc87 100644
--- a/trunk/drivers/net/mlx4/mlx4.h
+++ b/trunk/drivers/net/mlx4/mlx4.h
@@ -37,6 +37,7 @@
 #ifndef MLX4_H
 #define MLX4_H
 
+#include <linux/mutex.h>
 #include <linux/radix-tree.h>
 
 #include <linux/mlx4/device.h>