linux-kernel - Re: [GIT PULL for v3.5-rc1] media updates for v3.5

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Date:	Fri, 25 May 2012 09:12:43 -0300
From:	Mauro Carvalho Chehab <mchehab@...hat.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Media Mailing List <linux-media@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL for v3.5-rc1] media updates for v3.5

Em 24-05-2012 19:40, Linus Torvalds escreveu:
> On Thu, May 24, 2012 at 3:33 PM, Mauro Carvalho Chehab
> <mchehab@...hat.com> wrote:
>>
>> The Kconfig default for DVB_FE_CUSTOMISE is 'n'. So, if no DVB bridge is selected,
>> nothing will be compiled.
> 
> Sadly, it looks like the default for distro kernels is 'y'.

I'll change the default on Fedora (f16/f17/rawhide).

> Which means that if you start with a distro kernel config, and then
> try to cut it down to match your system, you end up screwed in the
> future - all the new hardware will default to on.
> 
> At least that's how I noticed it. Very annoying.

A simple way to solve it seems to make those options dependent on CONFIG_EXPERT.

Not sure if all usual distributions disable it, but I guess most won't have
EXPERT enabled.

The enclosed patch does that. If nobody complains, I'll submit it together
with the next git pull request.

Regards,
Mauro

-

[RFC PATCH] Make tuner/frontend options dependent on EXPERT

The media CUSTOMISE options are there to allow embedded systems and advanced
users to disable tuner/frontends that are supported by a bridge driver to
be disabled, in order to save some disk space and memory, when compiled builtin.

However, distros are mistakenly enabling it, causing problems when a
make oldconfig is used.

Make those options dependent on EXPERT, in order to avoid such annoyance behavior.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com>

diff --git a/drivers/media/common/tuners/Kconfig b/drivers/media/common/tuners/Kconfig
index bbf4945..702a3bf 100644
--- a/drivers/media/common/tuners/Kconfig
+++ b/drivers/media/common/tuners/Kconfig
@@ -35,6 +35,7 @@ config MEDIA_TUNER
 config MEDIA_TUNER_CUSTOMISE
 	bool "Customize analog and hybrid tuner modules to build"
 	depends on MEDIA_TUNER
+	depends on EXPERT
 	default y if EXPERT
 	help
 	  This allows the user to deselect tuner drivers unnecessary
diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig
index b98ebb2..6d3c2f7 100644
--- a/drivers/media/dvb/frontends/Kconfig
+++ b/drivers/media/dvb/frontends/Kconfig
@@ -1,6 +1,7 @@
 config DVB_FE_CUSTOMISE
 	bool "Customise the frontend modules to build"
 	depends on DVB_CORE
+	depends on EXPERT
 	default y if EXPERT
 	help
 	  This allows the user to select/deselect frontend drivers for their
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