diff --git a/target/linux/ipq806x/patches-5.10/999-01a-nss_sfe-support.patch b/target/linux/ipq806x/patches-5.10/999-01a-nss_sfe-support.patch
new file mode 100644
index 0000000000..443b04349f
--- /dev/null
+++ b/target/linux/ipq806x/patches-5.10/999-01a-nss_sfe-support.patch
@@ -0,0 +1,10 @@
+--- a/include/linux/timer.h
++++ b/include/linux/timer.h
+@@ -17,6 +17,7 @@ struct timer_list {
+ 	unsigned long		expires;
+ 	void			(*function)(struct timer_list *);
+ 	u32			flags;
++	unsigned long		cust_data;
+ 
+ #ifdef CONFIG_LOCKDEP
+ 	struct lockdep_map	lockdep_map;