diff --git a/in6_flowlabel.h b/in6_flowlabel.h
index 68b58d6..9a27397 100644
--- a/in6_flowlabel.h
+++ b/in6_flowlabel.h
@@ -1,39 +1,4 @@
-/*
-   It is just a stripped copy of the kernel header "linux/in6.h"
-
-   "Flow label" things are still not defined in "netinet/in*.h" headers,
-   but we cannot use "linux/in6.h" immediately because it currently
-   conflicts with "netinet/in.h" .
-*/
-
-struct in6_flowlabel_req
-{
-	struct in6_addr	flr_dst;
-	__u32	flr_label;
-	__u8	flr_action;
-	__u8	flr_share;
-	__u16	flr_flags;
-	__u16 	flr_expires;
-	__u16	flr_linger;
-	__u32	__flr_pad;
-	/* Options in format of IPV6_PKTOPTIONS */
-};
-
-#define IPV6_FL_A_GET	0
-#define IPV6_FL_A_PUT	1
-#define IPV6_FL_A_RENEW	2
-
-#define IPV6_FL_F_CREATE	1
-#define IPV6_FL_F_EXCL		2
-
-#define IPV6_FL_S_NONE		0
-#define IPV6_FL_S_EXCL		1
-#define IPV6_FL_S_PROCESS	2
-#define IPV6_FL_S_USER		3
-#define IPV6_FL_S_ANY		255
-
-#define IPV6_FLOWINFO_FLOWLABEL		0x000fffff
-#define IPV6_FLOWINFO_PRIORITY		0x0ff00000
-
-#define IPV6_FLOWLABEL_MGR	32
-#define IPV6_FLOWINFO_SEND	33
+/* The in6_flowlabel.h file in the iputils distribution exists to provide
+ * kernel flowlabel API definitions that are not in the userspace headers
+ * because they are linux-specific. It's not needed on Android because Android
+ * exposes the kernel definitions to userspace directly . */