It appears that the zero-day bot did find a bug in my sh build.

And that I didn't have the bad code in my config file when I
 cross compiled it, although there are a few other errors in sh
 that makes it not build for me, I missed that I added one more.
 
 I replaced WARN_ON(current->curr_ret_stack) with
  WARN_ON(ftrace_graph_get_ret_stack(current, 1) where it should be:
  WARN_ON(ftrace_graph_get_ret_stack(current, 1))
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Merge tag 'trace-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull ftrace sh build fix from Steven Rostedt:
 "It appears that the zero-day bot did find a bug in my sh build.

  And that I didn't have the bad code in my config file when I cross
  compiled it, although there are a few other errors in sh that makes it
  not build for me, I missed that I added one more"

* tag 'trace-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  sh: ftrace: Fix missing parenthesis in WARN_ON()

arch/sh/kernel/dwarf.c

@@ -616,7 +616,7 @@ struct dwarf_frame *dwarf_unwind_stack(unsigned long pc,
 		 * than one patched return address on our stack,
 		 * complain loudly.
 		 */
-		WARN_ON(ftrace_graph_get_ret_stack(current, 1);
+		WARN_ON(ftrace_graph_get_ret_stack(current, 1));
 	}
 #endif