linux-kernel - Re: [PATCH 2/1] init/Kconfig: Split expert menu into a separate file, init/Kconfig.expert

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Message-ID: <1431382517.2398.127.camel@x220>
Date:	Tue, 12 May 2015 00:15:17 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Josh Triplett <josh@...htriplett.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Michal Hocko <mhocko@...e.cz>,
	Vladimir Davydov <vdavydov@...allels.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Andy Lutomirski <luto@...capital.net>,
	Bertrand Jacquin <beber@...eeweb.net>,
	"Luis R. Rodriguez" <mcgrof@...e.com>,
	Iulia Manda <iulia.manda21@...il.com>,
	Pranith Kumar <bobby.prani@...il.com>,
	Clark Williams <clark.williams@...il.com>,
	Mel Gorman <mgorman@...e.de>,
	Randy Dunlap <rdunlap@...radead.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/1] init/Kconfig: Split expert menu into a separate
 file, init/Kconfig.expert

On Mon, 2015-05-11 at 15:04 -0700, Josh Triplett wrote:
> On Mon, May 11, 2015 at 11:50:21PM +0200, Paul Bolle wrote:
> > On Mon, 2015-05-11 at 13:23 -0700, Josh Triplett wrote:
> > > +config KALLSYMS_ALL
> > > +	bool "Include all symbols in kallsyms"
> > 
> > (For some reason this entry doesn't have if EXPERT but it seems to
> > behave as expected. Odd.)
> 
> Because it depends on KALLSYMS.  Magic!

Welcome to the land of Kconfig!

> > > +	depends on DEBUG_KERNEL && KALLSYMS
> > > +	help
> > > +	   Normally kallsyms only contains the symbols of functions for nicer
> > > +	   OOPS messages and backtraces (i.e., symbols from the text and inittext
> > > +	   sections). This is sufficient for most cases. And only in very rare
> > > +	   cases (e.g., when a debugger is used) all symbols are required (e.g.,
> > > +	   names of variables from the data sections, etc).
> > > +
> > > +	   This option makes sure that all symbols are loaded into the kernel
> > > +	   image (i.e., symbols from all sections) in cost of increased kernel
> > > +	   size (depending on the kernel configuration, it may be 300KiB or
> > > +	   something like this).
> > > +
> > > +	   Say N unless you really need all symbols.
> > > +
> > > +config PRINTK
> > > +	default y
> > > +	bool "Enable support for printk" if EXPERT
> > 
> > Now you're touching this: bool [...] as the first line, please.
> 
> I'd like the commit moving these to their own file to very obviously
> look like it's moving these lines unmodified, rather than making changes
> in the process.  If you want this (and all the subsequent instances you
> flagged) cleaned up, let's do that as a subsequent patch separate from
> the move.

That was one of my pet peeves leaving it's cage. Still, not sure if we'd
really notice if it's not a simple move. But a separate patch would
mainly add noise, so let's not do that.

Thanks,


Paul Bolle

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