diff --git a/include/linux/v4l2-common.h b/include/linux/v4l2-common.h
index e85bf15..0fa8b64 100644
--- a/include/linux/v4l2-common.h
+++ b/include/linux/v4l2-common.h
@@ -29,7 +29,11 @@
 #ifndef __V4L2_COMMON__
 #define __V4L2_COMMON__
 
-/* Selection target definitions */
+/*
+ *
+ * Selection interface definitions
+ *
+ */
 
 /* Current cropping area */
 #define V4L2_SEL_TGT_CROP		0x0000
@@ -46,7 +50,7 @@
 /* Current composing area plus all padding pixels */
 #define V4L2_SEL_TGT_COMPOSE_PADDED	0x0103
 
-/* Backward compatibility definitions */
+/* Backward compatibility target definitions --- to be removed. */
 #define V4L2_SEL_TGT_CROP_ACTIVE	V4L2_SEL_TGT_CROP
 #define V4L2_SEL_TGT_COMPOSE_ACTIVE	V4L2_SEL_TGT_COMPOSE
 #define V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL \
@@ -54,4 +58,14 @@
 #define V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL \
 	V4L2_SEL_TGT_COMPOSE
 
-#endif /* __V4L2_COMMON__  */
+/* Selection flags */
+#define V4L2_SEL_FLAG_GE		(1 << 0)
+#define V4L2_SEL_FLAG_LE		(1 << 1)
+#define V4L2_SEL_FLAG_KEEP_CONFIG	(1 << 2)
+
+/* Backward compatibility flag definitions --- to be removed. */
+#define V4L2_SUBDEV_SEL_FLAG_SIZE_GE	V4L2_SEL_FLAG_GE
+#define V4L2_SUBDEV_SEL_FLAG_SIZE_LE	V4L2_SEL_FLAG_LE
+#define V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG V4L2_SEL_FLAG_KEEP_CONFIG
+
+#endif /* __V4L2_COMMON__ */
diff --git a/include/linux/v4l2-subdev.h b/include/linux/v4l2-subdev.h
index 1d7d4573..8c57ee9 100644
--- a/include/linux/v4l2-subdev.h
+++ b/include/linux/v4l2-subdev.h
@@ -124,10 +124,6 @@
 	__u32 reserved[9];
 };
 
-#define V4L2_SUBDEV_SEL_FLAG_SIZE_GE			(1 << 0)
-#define V4L2_SUBDEV_SEL_FLAG_SIZE_LE			(1 << 1)
-#define V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG		(1 << 2)
-
 /**
  * struct v4l2_subdev_selection - selection info
  *
@@ -135,7 +131,7 @@
  * @pad: pad number, as reported by the media API
  * @target: Selection target, used to choose one of possible rectangles,
  *	    defined in v4l2-common.h; V4L2_SEL_TGT_* .
- * @flags: constraint flags
+ * @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
  * @r: coordinates of the selection window
  * @reserved: for future use, set to zero for now
  *
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 7fdb871..5d78910 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -761,16 +761,12 @@
 	struct v4l2_rect        c;
 };
 
-/* Hints for adjustments of selection rectangle */
-#define V4L2_SEL_FLAG_GE	0x00000001
-#define V4L2_SEL_FLAG_LE	0x00000002
-
 /**
  * struct v4l2_selection - selection info
  * @type:	buffer type (do not use *_MPLANE types)
  * @target:	Selection target, used to choose one of possible rectangles;
  *		defined in v4l2-common.h; V4L2_SEL_TGT_* .
- * @flags:	constraints flags
+ * @flags:	constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
  * @r:		coordinates of selection window
  * @reserved:	for future use, rounds structure size to 64 bytes, set to zero
  *