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

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Message-ID: <aHSmIa3uffj5vW-m@infradead.org>
Date: Sun, 13 Jul 2025 23:39:29 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Steven Rostedt <rostedt@...dmis.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 Fri, Jul 11, 2025 at 06:57:42AM -0400, Steven Rostedt wrote:
> I want to bring up this discussion. I understand there's a policy not to
> add EXPORT_SYMBOL_GPL() unless there's a current user of it in the kernel
> proper. My question is, does this policy have to be draconian?

Yes.  Making exception for friends and family is like Austrian law
enforcement and thus errodes the whole principle.  If you think lttng
is useful help ustreaming it.