linux-kernel - Re: rtc_valid_tm doesn't check tm

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Message-ID: <20080429122245.GB2137@digi.com>
Date:	Tue, 29 Apr 2008 14:22:45 +0200
From:	Uwe Kleine-König <Uwe.Kleine-Koenig@...i.com>
To:	David Brownell <david-b@...bell.net>
CC:	Alessandro Zummo <a.zummo@...ertech.it>,
	<linux-kernel@...r.kernel.org>
Subject: Re: rtc_valid_tm doesn't check tm_wday

Hello Dave,

David Brownell wrote:
> On Monday 28 April 2008, Uwe Kleine-König wrote:
> > Hello,
> > 
> > I'm currently writing an rtc driver and want to use rtc_valid_tm to
> > assert to have a valid date before writing it to the rtc.
> > 
> > Now I wonder why rtc_valid_tm doesn't check tm_wday for being in the
> > range [0 .. 6].  Is there a reason?
> 
> As far as I know, the kernel doesn't use tm_wday, tm_yday, or
> tm_isdst ... so none of those fields are expected to be valid.
> See the rtc(4) manpage.
Thanks.

I still want to write the correct value to the rtc, so I will assert
dirctly in the driver that it's valid.

Best regards,
Uwe

-- 
Uwe Kleine-König, Software Engineer
Digi International GmbH Branch Breisach, Küferstrasse 8, 79206 Breisach, Germany
Tax: 315/5781/0242 / VAT: DE153662976 / Reg. Amtsgericht Dortmund HRB 13962
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