From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 7AE902561AE for ; Mon, 14 Jul 2025 13:56:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752501378; cv=none; b=D3O2HSIz88JT+I9omp5da03UOhj74rLH5gBZ2ssP8RmptlEPrDlY0/RaD1QuT6cOpfccT2JpzA44mreq+vSVjVH1Htp5jGaZlKVDkGv2ohyMsEeP5QdW+BsBNjAjDpZiawFYpepWavK41QSQ6p+iL0MDMxktxiyjfiJ1v4aa5Tk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752501378; c=relaxed/simple; bh=qj9v9dfzED58+mSLZ2RvU2Lt3MAK+e/SoCAM3E4j+LM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fvlxc/IsKqnzPeSdXB7TzpHiZgTitSZ2JE89S9AMOsb9l71o/i15886Pp0i0wXw/D5UTEtdvqXnNumg9AbHGTioX4hxyOLn+fjUB5xUa46D15wPGEmEkYxxNu2qsZElrUEJKI0ITZMrSUcIUYRCh8A7tTIQof6lE2+K6pND4rg8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=pw9Nhdcv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="pw9Nhdcv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65499C4CEF6; Mon, 14 Jul 2025 13:56:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1752501377; bh=qj9v9dfzED58+mSLZ2RvU2Lt3MAK+e/SoCAM3E4j+LM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=pw9NhdcvqUgntRdlhBsOhAg++1iK0TVDOa/5TUK8a471dvdgrQn63tsHaN+pjuOkB HIXPGKm2EOgr9PF5NJM0N/PwTbztKKFOEgcGDB8CeAqAvU4HxsRAMMn/Wv+1KnxGXm SCU91mr/Qp5BB4VZ7Qwvv4iXDFEwIeOEoTrlNAts= Date: Mon, 14 Jul 2025 15:56:14 +0200 From: Greg KH 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: <2025071435-disorder-obliged-b74e@gregkh> References: <20250711065742.00d6668b@gandalf.local.home> <20250714062724.6febd9fb@gandalf.local.home> <20250714075426.36bdda0b@gandalf.local.home> <2025071443-lazily-blabber-3fbd@gregkh> <20250714082033.702160ad@gandalf.local.home> <2025071419-negligent-balcony-84c5@gregkh> <20250714093547.62159c19@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: <20250714093547.62159c19@gandalf.local.home> On Mon, Jul 14, 2025 at 09:35:47AM -0400, Steven Rostedt wrote: > On Mon, 14 Jul 2025 15:26:47 +0200 > Greg KH wrote: > > > As it seems that we do have other tracing/perf developers already, start > > with them and go forward to see what they say. > > We tried that. I don't have the time and I'm sure the perf folks don't > care. I advocate for LTTng because of the support that Mathieu has given > us. When was this last tried? If you don't have time, then the fault is on you, not us :) > The only other option is to allow LTTng to have access to a couple of > functions that Mathieu helped develop. Otherwise it's forcing me to say > "Thank you Mathieu for all your work, now go F*** off!". > > Which appears to be the only option :-( Stop making this false argument please, we aren't telling anyone anything different from what we have always been saying for decades now. Again, we don't export symbols for when there are no in-tree users. That's it. lttng not getting merged because you don't have time to review it should not make the above rule somehow invalid. sorry, greg k-h