linux-kernel - Re: [RFC v1] tree-wide: remove "select FW

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Message-ID: <20150525175431.GD1037@x>
Date:	Mon, 25 May 2015 10:54:31 -0700
From:	Josh Triplett <josh@...htriplett.org>
To:	Paul Bolle <pebolle@...cali.nl>
Cc:	"Luis R. Rodriguez" <mcgrof@...e.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Takashi Iwai <tiwai@...e.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Borislav Petkov <bp@...en8.de>,
	Greg KH <gregkh@...uxfoundation.org>,
	"David S. Miller" <davem@...emloft.net>, clemens@...isch.de,
	JBottomley@...n.com, David Airlie <airlied@...ux.ie>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Marcel Holtmann <marcel@...tmann.org>,
	"Gustavo F. Padovan" <gustavo@...ovan.org>,
	Johan Hedberg <johan.hedberg@...il.com>,
	Mikael Starvik <starvik@...s.com>,
	Jesper Nilsson <jesper.nilsson@...s.com>,
	Imre Kaloz <kaloz@...nwrt.org>, khalasa@...p.pl,
	Ohad Ben-Cohen <ohad@...ery.com>,
	Arnd Bergmann <arnd@...db.de>, 3chas3@...il.com,
	Jiri Slaby <jslaby@...e.cz>, Bryan Wu <cooloney@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Jacek Anaszewski <j.anaszewski@...sung.com>,
	mcgrof@...not-panic.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC v1] tree-wide: remove "select FW_LOADER" uses

On Mon, May 25, 2015 at 12:55:17PM +0200, Paul Bolle wrote:
> On Fri, 2015-05-22 at 14:43 -0700, josh@...htriplett.org wrote:
> > Ideally, someone should teach Kconfig to handle recursive dependencies,
> 
> I'm probably reading too much in this remark, but how should it handle
> that other than returning an error because the configuration it's fed
> makes it run in circles?

I don't mean cyclic dependencies (for which Kconfig should just report
an error, ideally including the full list of symbols forming the cycle).

I mean that Kconfig should do recursive dependency resolution.  If B
depends on A, and C depends on B, I should be able to turn on C
directly and have B and A enabled.

As an intermediate measure, it'd be *really* handy to be able to browse
in the curses UI directly from a symbol to the symbols it depends on to
quickly enable/disable them, rather than having to look at the list of
dependencies of a symbol, search for that symbol, remember the path the
search showed, and browse there manually.

- Josh Triplett
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