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From: Paolo Bonzini <pbonzini@redhat.com>
To: John Snow <jsnow@redhat.com>, Peter Maydell <peter.maydell@linaro.org>
Cc: QEMU Trivial <qemu-trivial@nongnu.org>,
	Michael Tokarev <mjt@tls.msk.ru>,
	QEMU Developers <qemu-devel@nongnu.org>,
	Qemu-block <qemu-block@nongnu.org>
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH] ide: coverity touchups
Date: Tue, 14 Jul 2015 10:30:08 +0200	[thread overview]
Message-ID: <55A4C890.70402@redhat.com> (raw)
In-Reply-To: <55A41474.8000004@redhat.com>



On 13/07/2015 21:41, John Snow wrote:
>>> >> s->ports should never exceed 32, but coverity doesn't know that.
>>> >> ncq_tfs->sector_count should also never exceed 64K.
>> > 
>> > Personally I tend to mark that kind of thing as a false
>> > positive in the coverity UI and move on...
>> > 
>> > -- PMM
>> > 
> Either way; Paolo pinged me about the NCQ one so I figured I'd just do it.

Yeah, neither is particularly optimal.  Every now and then (a couple
years, say) you do have to re-evaluate false positives, so it's better
to fix them if possible.  On the other hand the code is uglier.

Let's ignore these in Coverity---with a triaging comment there about why
they are false positives.

Paolo


WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: John Snow <jsnow@redhat.com>, Peter Maydell <peter.maydell@linaro.org>
Cc: QEMU Trivial <qemu-trivial@nongnu.org>,
	Michael Tokarev <mjt@tls.msk.ru>,
	QEMU Developers <qemu-devel@nongnu.org>,
	Qemu-block <qemu-block@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH] ide: coverity touchups
Date: Tue, 14 Jul 2015 10:30:08 +0200	[thread overview]
Message-ID: <55A4C890.70402@redhat.com> (raw)
In-Reply-To: <55A41474.8000004@redhat.com>



On 13/07/2015 21:41, John Snow wrote:
>>> >> s->ports should never exceed 32, but coverity doesn't know that.
>>> >> ncq_tfs->sector_count should also never exceed 64K.
>> > 
>> > Personally I tend to mark that kind of thing as a false
>> > positive in the coverity UI and move on...
>> > 
>> > -- PMM
>> > 
> Either way; Paolo pinged me about the NCQ one so I figured I'd just do it.

Yeah, neither is particularly optimal.  Every now and then (a couple
years, say) you do have to re-evaluate false positives, so it's better
to fix them if possible.  On the other hand the code is uglier.

Let's ignore these in Coverity---with a triaging comment there about why
they are false positives.

Paolo

  reply	other threads:[~2015-07-14  8:30 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-13 19:26 [Qemu-trivial] [PATCH] ide: coverity touchups John Snow
2015-07-13 19:26 ` [Qemu-devel] " John Snow
2015-07-13 19:40 ` [Qemu-trivial] " Peter Maydell
2015-07-13 19:40   ` Peter Maydell
2015-07-13 19:41   ` [Qemu-trivial] " John Snow
2015-07-13 19:41     ` John Snow
2015-07-14  8:30     ` Paolo Bonzini [this message]
2015-07-14  8:30       ` Paolo Bonzini
2015-07-14 15:00       ` [Qemu-trivial] " John Snow
2015-07-14 15:00         ` John Snow

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