linux-kernel - Re: [RFC][PATCH] ftrace: Make DYNAMIC_FTRACE always enabled for architectures that support it

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Message-ID: <20250703155242.0475137c@gandalf.local.home>
Date: Thu, 3 Jul 2025 15:52:42 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Linux trace kernel
 <linux-trace-kernel@...r.kernel.org>, Masami Hiramatsu
 <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Mark Rutland <mark.rutland@....com>, Alexandre Ghiti <alex@...ti.fr>,
 ChenMiao <chenmiao.ku@...il.com>, linux-arch@...r.kernel.org
Subject: Re: [RFC][PATCH] ftrace: Make DYNAMIC_FTRACE always enabled for
 architectures that support it

On Thu, 3 Jul 2025 15:49:16 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> diff --git a/include/linux/unwind_deferred.h b/include/linux/unwind_deferred.h
> index 515d2995672d..14efd8c027aa 100644
> --- a/include/linux/unwind_deferred.h
> +++ b/include/linux/unwind_deferred.h
> @@ -28,8 +28,8 @@ void unwind_deferred_cancel(struct unwind_work *work);
>  
>  static __always_inline void unwind_reset_info(void)
>  {
> -	if (unlikely(current->unwind_info.id))
> -		current->unwind_info.id = 0;
> +	if (unlikely(current->unwind_info.id.id))
> +		current->unwind_info.id.id = 0;
>  	/*
>  	 * As unwind_user_faultable() can be called directly and
>  	 * depends on nr_entries being cleared on exit to user,

Bah, I did this while fixing the unwind patches.

Oops!

-- Steve