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Message-ID: <20151222192751.GG8623@piout.net>
Date: Tue, 22 Dec 2015 20:27:51 +0100
From: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To: Sasha Levin <sasha.levin@...cle.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the rtc tree
Hi Sasha,
On 18/12/2015 at 17:43:41 +0100, Alexandre Belloni wrote :
> > > Sasha, I think I prefer having 32 bit platforms fail on the 21st of
> > > January 11761191 rather than adding more uses of do_div in the function.
> > > I'll have a look at the performance impact on 32 bit platforms.
> >
> > I'm really fine with just adding a WARN_ON() and aborting if it's the year
> > 11761191 :)
> >
>
> One simple way to solve it for 64bit platforms is to define days as
> unsigned long. Maybe throw a comment that it will fail for 32bit
> platforms in January 11761191 ;).
>
I did that:
http://git.kernel.org/cgit/linux/kernel/git/abelloni/linux.git/commit/?h=rtc-next&id=0d3da1806b985f1100615c2c09033b404941b63e
Unless you disagree, that is what I'm planning to send to Linus.
I wish you a happy end of year.
--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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