From: Herbert Poetzl <herbert@13thfloor.at>
To: Adrian Bunk <bunk@stusta.de>
Cc: Samuel Masham <samuel.masham@gmail.com>,
Jan Engelhardt <jengelh@linux01.gwdg.de>,
Dmitry Torokhov <dtor_core@ameritech.net>,
linux-kernel@vger.kernel.org,
linux-input@atrey.karlin.mff.cuni.cz,
Andrew Morton <akpm@osdl.org>
Subject: Re: [2.6 patch] make INPUT a bool
Date: Wed, 22 Feb 2006 13:01:21 +0100 [thread overview]
Message-ID: <20060222120121.GA5650@MAIL.13thfloor.at> (raw)
In-Reply-To: <20060222031001.GC4661@stusta.de>
On Wed, Feb 22, 2006 at 04:10:01AM +0100, Adrian Bunk wrote:
> On Wed, Feb 22, 2006 at 03:44:38AM +0100, Herbert Poetzl wrote:
> > On Wed, Feb 22, 2006 at 03:31:21AM +0100, Adrian Bunk wrote:
> > > On Wed, Feb 22, 2006 at 02:34:11AM +0100, Herbert Poetzl wrote:
> > > > On Mon, Feb 20, 2006 at 02:28:32PM +0100, Adrian Bunk wrote:
> > > > > On Mon, Feb 20, 2006 at 12:33:55PM +0900, Samuel Masham wrote:
> > > > >
> > > > > > Hi Adrian,
> > > > >
> > > > > Hi Samuel,
> > > > >
> > > > > > > And I've already given numbers why CONFIG_EMBEDDED=y and
> > > > > > > CONFIG_MODULES=y at the same time is insane.
> > > > > >
> > > > > > >From your numbers this sounds true ... but actually you might want the
> > > > > > modules to delay the init of the various hardware bits...
> > > > > >
> > > > > > Sometime boot-time is king and you just try and get back as much of
> > > > > > the size costs as it takes...
> > > > >
> > > > > this is irrelevant since CONFIG_INPUT alone does not init any hardware.
> > > > >
> > > > > > I think for EMBEDDED and MODULES is actually a very common case ... if
> > > > > > somewhat odd.
> > > > >
> > > > > You are misunderstanding EMBEDDED.
> > > >
> > > > well, I suggested the following (or a similar)
> > > > change some time ago (unfortunately I could not
> > > > find it in the lkml archives, so it might have
> > > > been lost)
> > > >
> > > > http://vserver.13thfloor.at/Stuff/embedded_to_expert.txt
> > >
> > > That's not a good solution since EMBEDDED is really only about
> > > additional space savings - even if you are an "expert", there's no
> > > reason to enable EMBEDDED when building a kernel for systems
> > > with > 50 MB RAM.
> >
> > well, not sure everybody kows that ...
> >
> > config X86_P4_CLOCKMOD
> > depends on EMBEDDED
>
> This one is an x86_64 only issue, and yes, it's wrong.
>
> > config VT_CONSOLE
> > bool "Support for console on virtual terminal" if EMBEDDED
>
> Looks OK.
>
> > config VGA_CONSOLE
> > bool "VGA text console" if EMBEDDED
>
> Looks OK.
>
> > config DNOTIFY
> > bool "Dnotify support" if EMBEDDED
>
> Looks OK.
>
> > config DEBUG_BUGVERBOSE
> > bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED
>
> Looks OK.
>
> > but, the patch was just considered a starting point
> > so that folks would know _what_ EMBEDDED is currently
> > used for ...
>
> Except for the X86_P4_CLOCKMOD case, all of your examples are correct
> usages of EMBEDDED.
ahem, well, then I'm definitely doing something
wrong when I disable the VGA console on my 2GB
servers, as "there's no reason to enable EMBEDDED
when building a kernel for systems with > 50 MB RAM"
sorry, I kind of disagree here, this might be useful
for embedded systems, but it is definitely useful
for other systems as well ... at least I do not like
the 'assumption' that every system with >50MB has
to have a VGA console ...
I agree that the 0815 distro will not need this and
it can be hidden behind some option ...
best,
Herbert
> > > The better solution is IMHO an additional option:
> > > http://lkml.org/lkml/2006/2/7/93
> > > http://lkml.org/lkml/2006/2/7/139
> >
> > whatever, just get rid of the CONFIG_EMBEDDED everybody
> > get's wrong and nobody really understands ...
>
> No, the EMBEDDED semantics shouldn't be changed and most people get it
> right.
>
> Naming it EXPERT as you suggested would make it even worse. We could name it
> SHOW_OPTIONS_FOR_ADDITIONAL_SPACE_SAVINGS_IF_YOU_REALLY_KNOW_WHAT_YOU_ARE_DOING,
> but unless someone comes up with a name that is both short and
> significantely better than EMBEDDED I don't see a reason for changing it.
>
> cu
> Adrian
>
> --
>
> "Is there not promise of rain?" Ling Tan asked suddenly out
> of the darkness. There had been need of rain for many days.
> "Only a promise," Lao Er said.
> Pearl S. Buck - Dragon Seed
>
> -
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next prev parent reply other threads:[~2006-02-22 12:01 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-14 15:22 [2.6 patch] make INPUT a bool Adrian Bunk
2006-02-14 18:14 ` Jan Engelhardt
2006-02-14 18:22 ` Adrian Bunk
2006-02-14 23:47 ` Adrian Bunk
2006-02-17 15:56 ` Jan Engelhardt
2006-02-17 16:38 ` Adrian Bunk
2006-02-20 3:33 ` Samuel Masham
2006-02-20 13:28 ` Adrian Bunk
2006-02-22 1:34 ` Herbert Poetzl
2006-02-22 2:31 ` Adrian Bunk
2006-02-22 2:44 ` Herbert Poetzl
2006-02-22 3:10 ` Adrian Bunk
2006-02-22 3:20 ` Dmitry Torokhov
2006-02-23 19:59 ` Status of X86_P4_CLOCKMOD? Adrian Bunk
2006-02-23 20:41 ` Dave Jones
2006-02-23 23:15 ` Andi Kleen
2006-02-23 23:33 ` Adrian Bunk
2006-02-23 23:55 ` Andi Kleen
2006-02-24 2:39 ` Adrian Bunk
2006-02-24 2:42 ` Andi Kleen
2006-02-24 17:33 ` Adrian Bunk
2006-02-25 1:57 ` Johannes Stezenbach
2006-02-25 4:24 ` Dave Jones
2006-02-25 12:53 ` Johannes Stezenbach
2006-02-27 21:17 ` Wes Felter
2006-02-25 4:27 ` Andi Kleen
2006-02-25 12:53 ` Adrian Bunk
2006-02-25 13:28 ` Dominik Brodowski
2006-02-26 11:12 ` Pavel Machek
2006-02-26 20:39 ` Johannes Stezenbach
2006-02-26 20:55 ` Dominik Brodowski
2006-02-26 23:37 ` Johannes Stezenbach
2006-02-25 13:36 ` Andi Kleen
2006-02-25 13:05 ` Johannes Stezenbach
2006-02-28 19:46 ` Matt Mackall
2006-02-28 20:09 ` Dave Jones
2006-02-28 20:19 ` Dmitry Torokhov
2006-02-28 20:47 ` Matt Mackall
2006-02-28 20:57 ` Dominik Brodowski
2006-02-28 21:26 ` Matt Mackall
2006-02-28 21:34 ` Dominik Brodowski
2006-02-28 21:39 ` Dmitry Torokhov
2006-02-28 22:22 ` Andi Kleen
2006-02-22 12:01 ` Herbert Poetzl [this message]
2006-02-22 12:15 ` [2.6 patch] make INPUT a bool Adrian Bunk
2006-02-22 18:09 ` Herbert Poetzl
2006-02-25 11:58 ` Geert Uytterhoeven
2006-02-25 12:46 ` Adrian Bunk
2006-02-25 14:22 ` Jan Engelhardt
2006-02-25 14:50 ` Adrian Bunk
2006-02-25 15:29 ` Jan Engelhardt
2006-02-25 15:40 ` Adrian Bunk
2006-02-25 22:01 ` Jan Engelhardt
2006-02-25 22:07 ` Adrian Bunk
2006-02-25 22:23 ` Dmitry Torokhov
2006-02-26 18:13 ` Adrian Bunk
2006-02-27 7:11 ` Vojtech Pavlik
2006-02-27 12:59 ` Vojtech Pavlik
2006-02-25 14:57 ` Jesper Juhl
2006-02-15 6:20 ` Dmitry Torokhov
2006-02-16 23:22 ` Adrian Bunk
2006-02-17 1:47 ` Dmitry Torokhov
-- strict thread matches above, loose matches on Subject: below --
2006-01-24 18:19 [PATCH] Export symbols so CONFIG_INPUT works as a module Martin Michlmayr
2006-01-24 23:08 ` Dmitry Torokhov
2006-01-24 23:14 ` Martin Michlmayr
2006-01-25 5:04 ` Dmitry Torokhov
2006-02-03 22:36 ` [2.6 patch] make INPUT a bool Adrian Bunk
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