From: Jeff Garzik <jeff@garzik.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Xi Wang <xi.wang@gmail.com>, Pekka Enberg <penberg@kernel.org>,
linux-sparse@vger.kernel.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Christopher Li <sparse@chrisli.org>
Subject: Re: [PATCH] fix casts when linearizing compound assignments
Date: Fri, 08 Jun 2012 16:09:11 -0400 [thread overview]
Message-ID: <4FD25BE7.7010900@garzik.org> (raw)
In-Reply-To: <CA+55aFwCMtzW9e0J8zPnUZsBNmCMRPqsL+hpzkMp4nx4sMXbFw@mail.gmail.com>
On 06/08/2012 03:28 PM, Linus Torvalds wrote:
> On Fri, Jun 8, 2012 at 12:25 PM, Xi Wang<xi.wang@gmail.com> wrote:
>>
>> What I am doing now is to convert all operands to integers first,
>> perform the addition, and then convert the result back to pointer.
>> Anything wrong with that?
>
> Wrong with it? No, it's what all reasonable hardware does anyway. But
> it's possible that it would effectively disable some LVM warnings or
> optimizations.
Yep. That is the tradeoff.
Jeff
next prev parent reply other threads:[~2012-06-08 20:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-08 10:47 [PATCH] fix casts when linearizing compound assignments Xi Wang
2012-06-08 15:45 ` Xi Wang
2012-06-08 19:10 ` Pekka Enberg
2012-06-08 19:18 ` Linus Torvalds
2012-06-08 19:25 ` Xi Wang
2012-06-08 19:28 ` Linus Torvalds
2012-06-08 19:47 ` Pekka Enberg
2012-06-08 19:57 ` Xi Wang
2012-06-08 20:09 ` Jeff Garzik [this message]
2012-06-08 20:08 ` Jeff Garzik
2012-06-08 20:16 ` Linus Torvalds
2012-06-16 6:10 ` Xi Wang
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