From: Andi Kleen <andi@firstfloor.org>
To: Bernd Petrovitsch <bernd@sysprog.at>
Cc: Andi Kleen <andi@firstfloor.org>,
Namhyung Kim <namhyung@gmail.com>, Arnd Bergmann <arnd@arndb.de>,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] introduce ptr_diff()
Date: Thu, 19 Aug 2010 14:59:57 +0200 [thread overview]
Message-ID: <20100819125957.GB6729@basil.fritz.box> (raw)
In-Reply-To: <1282222109.10440.50.camel@thorin>
> If so, the warning seems valid as sizeof(struct page) is probably not
> (always) a power of 2. On a native build on x86_64 it is 56 bytes
> hereover.
> Hmm ....
gcc just generats a mull with inverted value. mull is cheap on any
reasonable CPU. Please fix sparse.
-andi
next prev parent reply other threads:[~2010-08-19 12:59 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-19 11:37 [RFC][PATCH] introduce ptr_diff() Namhyung Kim
2010-08-19 11:57 ` Bernd Petrovitsch
2010-08-19 12:03 ` David Howells
2010-08-19 12:23 ` Andi Kleen
2010-08-19 12:40 ` Matthew Wilcox
2010-08-19 12:58 ` Andi Kleen
2010-08-19 12:58 ` Andi Kleen
2010-08-19 12:48 ` Bernd Petrovitsch
2010-08-19 12:48 ` Bernd Petrovitsch
2010-08-19 12:59 ` Andi Kleen [this message]
2010-08-19 13:05 ` Bernd Petrovitsch
2010-08-19 13:39 ` Andi Kleen
2010-08-20 12:12 ` Al Viro
2010-08-19 15:53 ` Namhyung Kim
2010-08-19 16:04 ` Bernd Petrovitsch
2010-08-19 16:12 ` Namhyung Kim
2010-08-20 12:07 ` Al Viro
2010-08-20 12:49 ` Matthew Wilcox
2010-08-20 12:57 ` Andi Kleen
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