Prevent an unreachable objtool warning after the sibling call detection
gets improved.  ftrace_stub() is basically a function, annotate it as
such.

Acked-by: Steven Rostedt (VMware) <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
---
 arch/x86/kernel/ftrace_64.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 0d54099c2a3a..58d125ed9d1a 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -184,6 +184,7 @@ SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
  * It is also used to copy the retq for trampolines.
  */
 SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
+       UNWIND_HINT_FUNC
        retq
 SYM_FUNC_END(ftrace_epilogue)
 
-- 
2.29.2

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