Re: [RFC PATCH 0/5] Add CONFIG symbol as module attribute

From: Luis Chamberlain <mcgrof@kernel.org>
To: Brendan Higgins <brendanhiggins@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Christoph Hellwig <hch@lst.de>,
	Cristina Moraru <cristina.moraru09@gmail.com>,
	"vegard.nossum@gmail.com" <vegard.nossum@gmail.com>,
	Valentin Rothberg <valentinrothberg@gmail.com>,
	Hannes Reinecke <hare@suse.de>, Sam Ravnborg <sam@ravnborg.org>,
	Michal Marek <michal.lkml@markovi.net>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Tom Gundersen <teg@jklm.no>, Kay Sievers <kay@vrfy.org>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	backports@vger.kernel.org, Guenter Roeck <linux@roeck-us.net>,
	"rafael.j.wysocki" <rafael.j.wysocki@intel.com>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Takashi Iwai <tiwai@suse.de>,
	Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
	Johannes Berg <johannes@sipsolutions.net>,
	Hauke Mehrtens <hauke@hauke-m.de>,
	Paul Bolle <pebolle@tiscali.nl>,
	Paul Gortmaker <paul.gortmaker@windriver.com>,
	Alexey Khoroshilov <khoroshilov@ispras.ru>,
	Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Laurence Oberman <loberman@redhat.com>,
	Johannes Thumshirn <jthumshirn@suse.de>,
	Tejun Heo <tj@kernel.org>,
	Jej B <James.Bottomley@hansenpartnership.com>,
	Theodore Ts'o <tytso@mit.edu>,
	Daniel Jonsson <danijons@student.chalmers.se>,
	Andrzej Wasowski <wasowski@itu.dk>
Subject: Re: [RFC PATCH 0/5] Add CONFIG symbol as module attribute
Date: Thu, 11 Jul 2019 23:22:47 +0000	[thread overview]
Message-ID: <20190711232247.GH19023@42.do-not-panic.com> (raw)
In-Reply-To: <CAFd5g45nGf-abwtNzSOo8suGyhzTEEQbiq7yNCS8XoO4ezA=UQ@mail.gmail.com>

On Thu, Jul 11, 2019 at 04:07:27PM -0700, Brendan Higgins wrote:
> On Wed, Jul 3, 2019 at 3:25 PM Luis Chamberlain <mcgrof@kernel.org> wrote:
> >
> > On Wed, Jul 03, 2019 at 08:57:58PM +0200, Greg Kroah-Hartman wrote:
> >
> > But again, this is a separate problem. The one I am addressing, on
> > behalf of Cristina, is a subspace, dedicated towards *hardware*
> > functionality.
> 
> Hmm...maybe this isn't what I am looking for then. I am interested in
> the problem of figuring out what dependencies I need to select to turn
> on a desired config symbol (which is obviously a separate issue),

It isn't directly. the problem statement is different, and
for that I do recommend checking out the kconfig-sat effort.

It only indirectly relates in that we already know our kconfig
semantics need work, and I do think that the underlying problem
in this thread slowly strives towards addressing kconfig semantics
for modules, associating one main kconfig symbol with one module.

I have no evidence for this though. But since there are users who can
gain from it, I don't see any issues from embracing it.

> and
> I am interested in associating symbols with a config symbol and then
> ensuring that symbol is exercised. Basically, I want a way to make
> sure my tests actually get run without a human looking at them; I feel
> like what you are working on might help with this latter issue, but I
> am not 100% sure. It sounds like it is not your primary goal in any
> case.

Nope, this topic only ralates to yours in the semantics case.

  Luis
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