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From: Blue Swirl <blauwirbel@gmail.com>
To: Markus Armbruster <armbru@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Re: [PATCH 04/11] lsi53c895a: avoid a write only variable
Date: Thu, 7 Oct 2010 18:53:49 +0000	[thread overview]
Message-ID: <AANLkTimNhgKrHNCk+8zb0cAqevf+0U1ZMkG+ojXpPeFB@mail.gmail.com> (raw)
In-Reply-To: <m37hhuqrzy.fsf@blackfin.pond.sub.org>

On Thu, Oct 7, 2010 at 9:20 AM, Markus Armbruster <armbru@redhat.com> wrote:
> Paolo Bonzini <pbonzini@redhat.com> writes:
>
>> On 10/06/2010 11:32 PM, Blue Swirl wrote:
>>> Compiling with GCC 4.6.0 20100925 produced a warning:
>>> /src/qemu/hw/lsi53c895a.c: In function 'lsi_do_msgout':
>>> /src/qemu/hw/lsi53c895a.c:848:9: error: variable 'len' set but not
>>> used [-Werror=unused-but-set-variable]
>>>
>>> Fix by making the variable declaration and its uses also conditional
>>> to debug definition.
>>
>> NACK, this uglifies the code and loses track of _what_ is that msgbyte
>> we're reading.

That information could be saved by adding a comment, I used that
approach for vmstate.c.

>
> Seconded.
>
> If the warning bothers you, maybe "(void)len" can silence it in a less
> unsightly manner.

I'll use that approach next.

  reply	other threads:[~2010-10-07 18:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-06 21:32 [Qemu-devel] [PATCH 04/11] lsi53c895a: avoid a write only variable Blue Swirl
2010-10-07  7:20 ` [Qemu-devel] " Paolo Bonzini
2010-10-07  9:20   ` Markus Armbruster
2010-10-07 18:53     ` Blue Swirl [this message]
2010-10-08 16:11       ` Paolo Bonzini

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