diff -drupN a/lib/decompress_unxz.c b/lib/decompress_unxz.c
--- a/lib/decompress_unxz.c	2017-10-21 18:09:07.000000000 +0300
+++ b/lib/decompress_unxz.c	2022-06-09 05:02:36.000000000 +0300
@@ -102,6 +102,9 @@
  */
 #ifdef STATIC
 #	define XZ_PREBOOT
+#	define INIT
+#else
+#	define INIT __init
 #endif
 #ifdef __KERNEL__
 #	include <linux/decompress/mm.h>