linux-kernel - Re: Kconfig RTC selection

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Message-ID: <47ECF753.1070804@rtr.ca>
Date:	Fri, 28 Mar 2008 09:49:07 -0400
From:	Mark Lord <lkml@....ca>
To:	Tilman Schmidt <tilman@...p.cc>
Cc:	David Brownell <david-b@...bell.net>, Ingo Molnar <mingo@...e.hu>,
	David Miller <davem@...emloft.net>, jkosina@...e.cz,
	gregkh@...e.de, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, pavel@...e.cz,
	akpm@...ux-foundation.org, rtc-linux@...glegroups.com
Subject: Re: Kconfig RTC selection

Tilman Schmidt wrote:
> On Fri, 28 Mar 2008 02:49:41 -0700, David Brownell wrote:
>> It seems too many people are used to enabling a legacy RTC despite the 
>> Kconfig help/comments; the gentle approach hasn't worked.
> 
> Gentleness is not the point. The Kconfig help/comments where just
> not clear at all.
> 
> FWIW, it's still confusing to have an option "Enhanced Real Time
> Clock Support" under "Character Devices", then later an option
> "Real Time Clock" one level higher, none of the two in any way
> acknowledging the existence of the other one, and only after
> naively selecting both, you are told that there is some sort of
> conflict. Couldn't this be made more explicit, such as:
> - mentioning in both options' help text that the other one
>   shouldn't be selected at the same time (if that's true)
> - noting explicitly which of the two RTC options is the "legacy"
>   one (is it RTC_CLASS?)
> - enhancing the conflict message, which reads, in git-current:
>        *** Conflicting RTC option has been selected, check GEN_RTC
>        *** RTC interfaces ***
..

Exactly the issue.  Mod++++++++++++++++++++++

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