--- a/extensions/LUA/prot_buf_ip.c	2026-07-11 09:50:33.009347579 +0800
+++ b/extensions/LUA/prot_buf_ip.c	2026-07-11 09:50:40.939405421 +0800
@@ -17,6 +17,7 @@
  */
 
 #if defined(__KERNEL__)
+	#include <linux/bitops.h>
 	#include <net/checksum.h>
 	#include <net/tcp.h>
 #endif
--- a/extensions/LUA/prot_buf_tcp.c	2026-07-11 09:50:33.009347579 +0800
+++ b/extensions/LUA/prot_buf_tcp.c	2026-07-11 09:50:40.939405421 +0800
@@ -17,6 +17,7 @@
  */
 
 #if defined(__KERNEL__)
+	#include <linux/bitops.h>
 	#include <net/checksum.h>
 	#include <net/tcp.h>
 #endif
--- a/extensions/LUA/prot_buf_udp.c	2026-07-11 09:50:33.009347579 +0800
+++ b/extensions/LUA/prot_buf_udp.c	2026-07-11 09:50:40.939405421 +0800
@@ -17,6 +17,7 @@
  */
 
 #if defined(__KERNEL__)
+	#include <linux/bitops.h>
 	#include <net/checksum.h>
 #endif
 
--- a/extensions/LUA/xt_LUA_target.c	2026-07-11 09:50:33.009347579 +0800
+++ b/extensions/LUA/xt_LUA_target.c	2026-07-11 09:50:40.939405421 +0800
@@ -136,7 +136,7 @@
 	int32_t ret;
 	struct lua_env * env = kmalloc(sizeof(struct lua_env), GFP_KERNEL);
 
-	if (!script_size > 0) {
+	if (script_size <= 0) {
 		pr_debug("LUA [%d]: script_size %lu < 0\n", state_id, script_size);
 		return false;
 	}