diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 945649c..5a28772 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -5054,6 +5054,12 @@ union bpf_attr {
  *		This helper is currently supported by cgroup programs only.
  *	Return
  *		0 on success, or a negative error in case of failure.
+ *
+ * u64 bpf_xdp_get_buff_len(struct xdp_buff *xdp_md)
+ *	Description
+ *		Get the total size of a given xdp buff (linear and paged area)
+ *	Return
+ *		The total size of a given xdp buffer.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -5244,6 +5250,7 @@ union bpf_attr {
 	FN(get_func_arg_cnt),		\
 	FN(get_retval),			\
 	FN(set_retval),			\
+	FN(xdp_get_buff_len),		\
 	/* */
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper