Hi Miroslav,

+bool unwind_next_frame_reliable(struct unwind_state *state)
+{

...

+}
+
 void __unwind_start(struct unwind_state *state, struct task_struct *task,
 		    struct pt_regs *regs, unsigned long sp,
 		    bool unwind_reliable)

Did you send the wrong version of your patch series? This patch does
not integrate your new function into the existing one. Also the new
parameter you added with the second patch isn't used at all.