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Date: Sun, 20 May 2007 02:52:14 -0700 (PDT) From: Trent Piepho <xyzzy@...akeasy.org> To: Satyam Sharma <satyam.sharma@...il.com> cc: Adrian Bunk <bunk@...sta.de>, 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> Subject: Re: RFC: kconfig select warnings bogus? On Sun, 20 May 2007, Satyam Sharma wrote: > On 5/20/07, Adrian Bunk <bunk@...sta.de> wrote: > > On Sun, May 20, 2007 at 05:25:24AM +0530, Satyam Sharma wrote: > > > On 5/20/07, Adrian Bunk <bunk@...sta.de> wrote: > > >> On Sun, May 20, 2007 at 05:06:33AM +0530, Satyam Sharma wrote: > > >> > On 5/20/07, Adrian Bunk <bunk@...sta.de> wrote: > > >> There are cases where "default .. if .." is the right idiom, but there > > >> are also cases where "select" is the right idiom. And for helper code > > >> like ATARI_KBD_CORE, "select" is the right idiom. > > > > > > ATARI_KBD_CORE, unlike MII, is defined only by some archs. And the > > > correct (most widely used or standard, in any case) idiom for that is > > > "default .. if ..". Or perhaps you can convert those helper code options in > > > arch/.../config's over to select too, as an exercise? :-) > > > > Perhaps not as an exercise, but actually for real. > > > > We had "fixed" such warnings in the past similar to your patch, but that > > was actually a mistake. > > > > And "correct" can easily be the opposite of "most widely used or standard" > > if you discover that you did it wrong in the past. > > In that case the correct approach here too would be to _shift_ > ATARI_KBD_CORE from arch/m68k/Kconfig to drivers/input/Kconfig > and *then* use "select" from the config options that require it in > drivers/input/keyboard/Kconfig and drivers/input/mouse/Kconfig > > (and repeat for other such cases in arch/...) You don't need a huge '||' chain, you can always have more than one default line: config ATARI_KBD_CORE bool default y if KEYBOARD_ATARI default y if MOUSE_ATARI Basically a line "config A \n select B" is transformed into "config B \n default y if A". It's the same number of lines, they're just in a new place. Another alternative would be to shift the arch specific drivers to a file that's arch specific. e.g. move MOUSE_ATARI from drivers/input/mouse/Kconfig to arch/m68k/Kconfig. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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