--- zzzz-none-000/linux-3.10.107/security/apparmor/include/sid.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/security/apparmor/include/sid.h	2021-02-04 17:41:59.000000000 +0000
@@ -16,7 +16,9 @@
 
 #include <linux/types.h>
 
-struct aa_profile;
+/* sid value that will not be allocated */
+#define AA_SID_INVALID 0
+#define AA_SID_ALLOC AA_SID_INVALID
 
 u32 aa_alloc_sid(void);
 void aa_free_sid(u32 sid);