From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 287D817A2E8 for ; Mon, 14 Jul 2025 11:38:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752493117; cv=none; b=QGrd2L1zYbCF99L+IHq9XiXx1yTvgAlfcytmD95xgNJ9136nOcJ2nfUlBNiijaaiB9PkObM+Fh6Ogd+zPBMhBGMnyi8sEZFOef0SmXIA7hU55U9RRxlwsA8CCmBR8O5RjmWYSogJABDbHgM8oi1GiOCchR5zB7rVIXK00Ods0lo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752493117; c=relaxed/simple; bh=gY5KB8MrNfdx/voPKs2We0Zqihb/c7uT3E6zbC8Xx5k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=t9Kb8rf7AFgyhOZqMDTGFakfkhKeTXSddghj29ixo81eVKmX3I7pSYz+OInvnOH2rISqIZ2X6cK7/oQqSkJqy/ksQ6OpSnbmGFKffpTc0gxHzKX/JxXHOF7vHGVIaSzUsXCeLEpp4jmLmNzA07ZEokcEaI5m37/KtMEvM6uCJks= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=2Hgy87jQ; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="2Hgy87jQ" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=I2lD775XhYeeH1MiGzf4yPSc4AcGHGaz7v+UHkUUxOg=; b=2Hgy87jQ48lyD5M3aRb+76fn4F 8BlobkFCDs5zsl8jUigzW9bu/RlWho49bggLQX4oXi6LcVdlLNhDyt2zk/lyI6ttGl0JGmBuXaioF ocgwMVBRekUfxPbOtdOBvUOQC5ioTr/RRhjhuMTInsCYr3RRKGBYRN7C9DRXj7nzLFuFevYCohqc0 6KXTcgplUJlkB1jRgaddVByQcUvLJzSwWECi90UBOC07OCmIUdMbXi1Ut4YWTIUr/5MZphLr45173 o9IMPHL8klrLbmTYVfYS8gWeGc2yHbh4/c1vtIz0YHktcW5FMDR2K/0KsYwUvyOy1aZesgmAKU9FO BrS131hQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1ubHVx-000000022nV-1U9a; Mon, 14 Jul 2025 11:38:33 +0000 Date: Mon, 14 Jul 2025 04:38:33 -0700 From: Christoph Hellwig To: Steven Rostedt Cc: Christoph Hellwig , Mathieu Desnoyers , linux-kernel@vger.kernel.org, Josh Poimboeuf , Masami Hiramatsu , Peter Zijlstra , Ingo Molnar , Jiri Olsa , Namhyung Kim , Thomas Gleixner , Andrii Nakryiko , Indu Bhagat , "Jose E. Marchesi" , Beau Belgrave , Jens Remus , Linus Torvalds , Andrew Morton , tech-board-discuss@lists.linuxfoundation.org Subject: Re: [RFC PATCH 2/5] unwind: Export unwind_user symbol to GPL modules Message-ID: References: <20250709212556.32777-1-mathieu.desnoyers@efficios.com> <20250709212556.32777-3-mathieu.desnoyers@efficios.com> <20250711065742.00d6668b@gandalf.local.home> <20250714062724.6febd9fb@gandalf.local.home> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250714062724.6febd9fb@gandalf.local.home> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Mon, Jul 14, 2025 at 06:27:24AM -0400, Steven Rostedt wrote: > This has nothing to do with Mathieu being a friend. He's a long time Linux > kernel contributor and has played a key role in developing a new feature > that will help both perf and ftrace, but without the EXPORT_SYMBOL_GPL(), > LTTng can't use it. It's basically saying "thank you Mathieu for helping us > with this new feature, now go F*** off!" You don't have to be as explicit, but otherwise that's exactly how it works. No one gets a free ride just because they are nice and/or contributed something. The rest of your mail looks just as confused.