--- zzzz-none-000/linux-3.10.107/kernel/trace/trace_nop.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/kernel/trace/trace_nop.c	2021-02-04 17:41:59.000000000 +0000
@@ -6,8 +6,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/debugfs.h>
 #include <linux/ftrace.h>
 
 #include "trace.h"
@@ -62,7 +60,7 @@
  * If you don't implement it, then the flag setting will be
  * automatically accepted.
  */
-static int nop_set_flag(u32 old_flags, u32 bit, int set)
+static int nop_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
 {
 	/*
 	 * Note that you don't need to update nop_flags.val yourself.
@@ -91,11 +89,11 @@
 	.name		= "nop",
 	.init		= nop_trace_init,
 	.reset		= nop_trace_reset,
-	.wait_pipe	= poll_wait_pipe,
 #ifdef CONFIG_FTRACE_SELFTEST
 	.selftest	= trace_selftest_startup_nop,
 #endif
 	.flags		= &nop_flags,
-	.set_flag	= nop_set_flag
+	.set_flag	= nop_set_flag,
+	.allow_instances = true,
 };