Re: [PATCH v2 3/3] arm64: stacktrace: Convert to ARCH_STACKWALK

From: Miroslav Benes
Date: Wed Sep 02 2020 - 05:32:19 EST


Hi,

it could be a silly question, but better to ask...

> + if (regs)
> + start_backtrace(&frame, regs->regs[29], regs->pc);
> + else
> + start_backtrace(&frame, thread_saved_fp(task),
> + thread_saved_pc(task));

Would this also work for task == current? Given that the original code had

> - start_backtrace(&frame,
> - (unsigned long)__builtin_frame_address(0),
> - (unsigned long)__save_stack_trace);

for the case, which seems correct (but I don't know much about arm64 arch
in the kernel).

Otherwise, I did not spot anything suspicious or wrong.

Regards
Miroslav