linux-kernel - Re: [PATCH V2] sparse: Allow override of sizeof(bool) warning

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Message-ID: <CANeU7Q=RNXR00bQcPzJYTOcZmRSn3U31ZcadPTHu6Y_Uk0UnYw@mail.gmail.com>
Date:	Thu, 27 Feb 2014 12:22:45 -0800
From:	Christopher Li <sparse@...isli.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Ben Pfaff <blp@...ira.com>, Joe Perches <joe@...ches.com>,
	Josh Triplett <josh@...htriplett.org>,
	Linux-Sparse <linux-sparse@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2] sparse: Allow override of sizeof(bool) warning

On Wed, Feb 26, 2014 at 8:32 PM, H. Peter Anvin <hpa@...or.com> wrote:
>
> Quite frankly, this is silly in my opinion, *and* it is not guaranteed
> by C either (read about "trap representations").
>>
> Anything that moves data around in a generic fashion.  It can be as
> simple as:
>
>         memcpy(foo, bar, sizeof *foo);

OK. I get it nobody wants a sizeof(_Bool) warning.

I am going to apply this patch.

Should we change the default to off then?

Thanks.

Chris
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