linux-kernel - Re: RFC: kconfig select warnings bogus?

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Message-ID: <464F9A7B.1030708@s5r6.in-berlin.de>
Date:	Sun, 20 May 2007 02:46:51 +0200
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Satyam Sharma <satyam.sharma@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Sam Ravnborg <sam@...nborg.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Roman Zippel <zippel@...ux-m68k.org>,
	Kumar Gala <galak@...nel.crashing.org>,
	Simon Horman <horms@...ge.net.au>, Adrian Bunk <bunk@...sta.de>
Subject: Re: RFC: kconfig select warnings bogus?

Satyam Sharma wrote:
> A combined patch for all of those on top of 22-rc2 (adding Signed-off-by's
> for original authors too):
> 
> Signed-off-by: Kumar Gala <galak@...nel.crashing.org>
> Signed-off-by: Simon Horman <horms@...ge.net.au>
> Signed-off-by: Satyam Sharma <ssatyam@....iitk.ac.in>

[...]

> diff -ruNp a/drivers/input/keyboard/Kconfig
> b/drivers/input/keyboard/Kconfig
> --- a/drivers/input/keyboard/Kconfig    2007-05-20 04:11:55.000000000 +0530
> +++ b/drivers/input/keyboard/Kconfig    2007-05-20 04:24:54.000000000 +0530
> @@ -167,7 +167,6 @@ config KEYBOARD_AMIGA
> config KEYBOARD_ATARI
>     tristate "Atari keyboard"
>     depends on ATARI
> -    select ATARI_KBD_CORE
>     help
>       Say Y here if you are running Linux on any Atari and have a keyboard
>       attached.
> diff -ruNp a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
> --- a/drivers/input/mouse/Kconfig    2007-05-20 04:11:55.000000000 +0530
> +++ b/drivers/input/mouse/Kconfig    2007-05-20 04:25:09.000000000 +0530
> @@ -179,7 +179,6 @@ config MOUSE_AMIGA
> config MOUSE_ATARI
>     tristate "Atari mouse"
>     depends on ATARI
> -    select ATARI_KBD_CORE
>     help
>       Say Y here if you have an Atari and want its native mouse
>       supported by the kernel.
> diff -ruNp a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
> --- a/drivers/macintosh/Kconfig    2007-05-20 04:11:55.000000000 +0530
> +++ b/drivers/macintosh/Kconfig    2007-05-20 04:18:57.000000000 +0530
> @@ -113,7 +113,6 @@ config PMAC_SMU
> 
> config PMAC_APM_EMU
>     tristate "APM emulation"
> -    select SYS_SUPPORTS_APM_EMULATION
>     select APM_EMULATION
>     depends on ADB_PMU && PM
> 
> diff -ruNp a/drivers/net/Kconfig b/drivers/net/Kconfig
> --- a/drivers/net/Kconfig    2007-05-20 04:11:56.000000000 +0530
> +++ b/drivers/net/Kconfig    2007-05-20 04:22:15.000000000 +0530
> @@ -2280,7 +2280,6 @@ config GFAR_NAPI
> config UCC_GETH
>     tristate "Freescale QE Gigabit Ethernet"
>     depends on QUICC_ENGINE
> -    select UCC_FAST
>     help
>       This driver supports the Gigabit Ethernet mode of the QUICC Engine,
>       which is available on some Freescale SOCs.

Adrian already commented on this.  Let me just add that these above
changes are in so far *totally wrong* as they remove the "depends on
XYZ" which is implied by "select XYZ".

Remember, "select" is like "depends on", just with the added twist that
the 'make snafuconfig' scripts are instructed to (a) not hide the
depending option from the user and (b) try to enable the dependency for
the user if he tries to enable the depending option.
-- 
Stefan Richter
-=====-=-=== -=-= =-=--
http://arcgraph.de/sr/
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