fixup! Allow specific Lua script to be run in xdp enviroment

net/core/dev.c

@@ -76,6 +76,7 @@
 #include "lauxlib.h"
 #include "lualib.h"
 #include "luadata.h"
+
 #include <linux/uaccess.h>
 #include <linux/bitops.h>
 #include <linux/capability.h>
@@ -157,8 +158,10 @@
 
 /* This should be increased if a protocol with a bigger head is added. */
 #define GRO_MAX_HEAD (MAX_HEADER + 128)
+#define LUA_SCRIPT "print('hello world')"
 
 static lua_State *L;
+
 static DEFINE_SPINLOCK(ptype_lock);
 static DEFINE_SPINLOCK(offload_lock);
 struct list_head ptype_base[PTYPE_HASH_SIZE] __read_mostly;
@@ -4390,7 +4393,7 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
 	xdp->rxq = &rxqueue->xdp_rxq;
 
 	act = bpf_prog_run_xdp(xdp_prog, xdp);
-	luaL_dostring(L, "print('hello wolrd')");
+	luaL_dostring(L, LUA_SCRIPT);
 
 	off = xdp->data - orig_data;
 	if (off > 0)
@@ -9826,6 +9829,7 @@ static int __init net_dev_init(void)
 	L = luaL_newstate();
 	luaL_openlibs(L);
 	luaL_requiref(L, "data", luaopen_data, 1);
+
 	if (dev_proc_init())
 		goto out;