linux-kernel - Re: Sparse warnings from calls to max3() and max

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Message-ID: <16718fb5-b354-edb2-9a2b-26041954bd7d@lwfinger.net>
Date:   Wed, 3 Oct 2018 18:38:43 -0500
From:   Larry Finger <Larry.Finger@...inger.net>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Christopher Li <sparse@...isli.org>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: Re: Sparse warnings from calls to max3() and max

On 10/3/18 5:29 PM, Luc Van Oostenryck wrote:
> On Tue, Oct 02, 2018 at 06:44:39PM -0500, Larry Finger wrote:
>> Hi,
>>
>> Sparse has suddenly started issuing as many as 11 warnings of
>> "expression using sizeof(void)" for each call to max3(). There are
>> similar warnings for calls to max(), thus I think this is the origin
>> of the problem. My sparse version is 20180324-1.3-x86_64 installed
>> in openSUSE Tumbleweed. My kernel is 4.19.0-rc6.
> 
> Hi,
> 
> This problem is resolved in a more recent version of sparse,
> the one you can find at:
>    git://github.com/lucvoo/sparse-dev
> 
> See Linus' email about it:
>    https://lore.kernel.org/lkml/CA+55aFzYEnZR2GZLR-DwpONjMNYGYoDy+6AWLCVNayWiaZuqoA@mail.gmail.com/T/#u
> 
> NB. The official version hosted on kernel.org is not uptodate but
>      I hope this will solved in a few weeks.

Thanks. I'll ignore those warnings for now.

Larry