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Subject[PATCH 06/21] x86/ftrace: Add UNWIND_HINT_FUNC annotation for ftrace_stub
Date
Prevent an unreachable objtool warning after the sibling call detection
gets improved. ftrace_stub() is basically a function, annotate it as
such.

Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
---
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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