From: Josh Poimboeuf jpoimboe@redhat.com
commit 18660698a3d30868524cefb60dcd4e0e297f71bb upstream.
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) rostedt@goodmis.org Signed-off-by: Josh Poimboeuf jpoimboe@redhat.com Link: https://lore.kernel.org/r/6845e1b2fb0723a95740c6674e548ba38c5ea489.161126346... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/ftrace_64.S | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/kernel/ftrace_64.S +++ b/arch/x86/kernel/ftrace_64.S @@ -173,6 +173,7 @@ SYM_INNER_LABEL(ftrace_graph_call, SYM_L * It is also used to copy the RET for trampolines. */ SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK) + UNWIND_HINT_FUNC RET SYM_FUNC_END(ftrace_epilogue)