linux-kernel - Re: [RFC PATCH 2/5] unwind: Export unwind

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Message-ID: <20250714082033.702160ad@gandalf.local.home>
Date: Mon, 14 Jul 2025 08:20:33 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: Christoph Hellwig <hch@...radead.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, linux-kernel@...r.kernel.org, Josh
 Poimboeuf <jpoimboe@...nel.org>, Masami Hiramatsu <mhiramat@...nel.org>,
 Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>, Jiri
 Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>, Thomas
 Gleixner <tglx@...utronix.de>, Andrii Nakryiko <andrii@...nel.org>, Indu
 Bhagat <indu.bhagat@...cle.com>, "Jose E. Marchesi" <jemarch@....org>, Beau
 Belgrave <beaub@...ux.microsoft.com>, Jens Remus <jremus@...ux.ibm.com>,
 Linus Torvalds <torvalds@...ux-foundation.org>, Andrew Morton
 <akpm@...ux-foundation.org>, tech-board-discuss@...ts.linuxfoundation.org
Subject: Re: [RFC PATCH 2/5] unwind: Export unwind_user symbol to GPL
 modules

On Mon, 14 Jul 2025 13:59:56 +0200
Greg KH <gregkh@...uxfoundation.org> wrote:

> The maintainers of the subsystems in which the new code interacts with
> are the reviewers, as always.  Again, nothing unusual here.

What subsystems does it interact with? It is an observer, it doesn't affect
any subsystem. It's basically stand alone. It only needs to use the
tracepoint infrastructure (which BTW, Matiheu is the maintainer of).

Just like perf and ftrace. They are stand alone subsystems where other
subsystems may interact with them, but they don't really interact with
anything else (besides the normal utilities like allocation of memory and
such).

> 
> > Have any suggestions for him, or do you just not care? But you are one of
> > the gate keepers of EXPORT_SYMBOL_GPL() which affects him.  
> 
> This is not the issue at all, sorry Just submit it like normal.

So he could just send a thousand patch series that doesn't touch any other
subsystem? It would have a diffstat that touches nothing but kernel/lttng,
kernel/Makefile and kernel/Kconfig. Who's going to review it? Who's going
to accept it?

-- Steve