linux-kernel - Re: [PATCH] Fix missing 'cnt' in ?: in dmatest

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Message-ID: <CAA9_cmfCWM1793stQE0Woa2Z0bEqk6j5=MSgEmV5A+=ipiFQow@mail.gmail.com>
Date:	Thu, 25 Aug 2011 15:55:23 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	"Dr. David Alan Gilbert" <linux@...blig.org>,
	linux-kernel@...r.kernel.org, nicolas.ferre@...el.com,
	akpm@...ux-foundation.org
Subject: Re: [PATCH] Fix missing 'cnt' in ?: in dmatest

On Sat, Aug 20, 2011 at 6:12 PM, Al Viro <viro@...iv.linux.org.uk> wrote:
> On Sun, Aug 21, 2011 at 01:50:31AM +0100, Dr. David Alan Gilbert wrote:
>
>> (WTH is x=y?:z legal C anyway?)
>
> gccism.  It's not legal C; it's a gcc extension, and not a pretty one at
> that.  It's almost definitely a bug in this case - what used to be in the
> tree is equivalent to cnt > 0 ? cnt > 0 : 0, i.e. cnt > 0 ? 1 : 0, i.e.
> cnt > 0.  AFAICS, after your patch it does make sense.
>
>> Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>

Thanks, I'll take this through the async_tx.git tree.

--
Dan
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