--- zzzz-none-000/linux-3.10.107/include/linux/kmsg_dump.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/linux/kmsg_dump.h	2021-11-10 11:53:56.000000000 +0000
@@ -64,6 +64,10 @@
 bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
 			  char *buf, size_t size, size_t *len);
 
+#if defined(CONFIG_AVM_DEBUG)
+bool kmsg_dump_get_buffer_nocontext(bool syslog, char *buf, size_t size, size_t *len);
+#endif/*--- #if defined(CONFIG_AVM_DEBUG) ---*/
+
 void kmsg_dump_rewind_nolock(struct kmsg_dumper *dumper);
 
 void kmsg_dump_rewind(struct kmsg_dumper *dumper);
@@ -112,6 +116,12 @@
 {
 	return -EINVAL;
 }
+
+#if defined(CONFIG_AVM_DEBUG)
+static inline bool kmsg_dump_get_buffer_nocontext(bool syslog, char *buf, size_t size, size_t *len){
+    return false;
+}
+#endif/*--- #if defined(CONFIG_AVM_DEBUG) ---*/
 #endif
 
 #endif /* _LINUX_KMSG_DUMP_H */