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

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Message-ID: <20250714080208.44c16d3d@gandalf.local.home>
Date: Mon, 14 Jul 2025 08:02:08 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Christoph Hellwig <hch@...radead.org>
Cc: 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 07:54:26 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> And yes, I still consider it draconian.

It's not that Mathieu doesn't want to work with upstream. It's more like
upstream doesn't want to work with Mathieu.

And I'll admit that I haven't helped in this regard. In the past I've
considered LTTng as more of an annoyance. But over the years of working
with Mathieu, we have found that ftrace and LTTng have two different
audiences with a little overlap. And because Mathieu has helped out where
he could, I started helping him where I could. That's called, collaboration.

-- Steve