[PATCH v6 2/6] arm64: pass a task parameter to unwind_frame()

[Jungseok Lee]

On Nov 18, 2015, at 3:43 PM, AKASHI Takahiro wrote:
> The change here doesn't make any difference in this patch, but is
> a preparation for later fixing a problem where stacktrace functions,
> unwind_frame() and walk_stackframe(), may return useless call stacks
> under function graph tracer.

I'm aligned with the argument. The case cannot be handled correctly
without ret_stack[] of struct task_struct.

Best Regards
Jungseok Lee