Re: [PATCH] ptrdiff_t is not uintptr_t, damnit

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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...
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