From: Al Viro <viro@ftp.linux.org.uk>
To: Anton Altaparmakov <aia21@cam.ac.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
dbrownell@users.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ptrdiff_t is not uintptr_t, damnit
Date: Mon, 20 Aug 2007 01:52:46 +0100 [thread overview]
Message-ID: <20070820005246.GX21089@ftp.linux.org.uk> (raw)
In-Reply-To: <C0FCB07A-EE48-4ABB-96A7-470C53C86A38@cam.ac.uk>
On Mon, Aug 20, 2007 at 01:27:13AM +0100, Anton Altaparmakov wrote:
> And what the cast was doing I can't remember. I may well have just
> copied it from the VFS or I was perhaps trying to silence a warning
> and this happened to work...
... due to sparse bug (it miscalculated address space of pointed to,
picking top-level qualifiers for some reason; __user pointer to char
and pointer to __user char gave the same result and so did __user long).
That cast still made no sense...
next prev parent reply other threads:[~2007-08-20 0:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-19 22:55 [PATCH] ptrdiff_t is not uintptr_t, damnit Al Viro
2007-08-20 0:19 ` David Brownell
2007-08-20 0:29 ` Anton Altaparmakov
2007-08-20 0:57 ` Al Viro
2007-08-20 0:57 ` David Brownell
2007-08-20 3:01 ` Satyam Sharma
2007-08-20 3:26 ` David Brownell
2007-08-20 3:40 ` Al Viro
2007-08-20 4:17 ` David Brownell
2007-08-20 0:27 ` Anton Altaparmakov
2007-08-20 0:52 ` Al Viro [this message]
2007-08-20 1:12 ` David Brownell
2007-08-21 18:53 ` David Brownell
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