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Date:	Tue, 27 Oct 2009 22:21:12 +0000
From:	Alan Cox <>
To:	"Gregory Haskins" <>
Cc:	<>
Subject: Re: Zillions of warnings in -next

> I just did a 32-bit build and indeed reproduced the warnings.  However, the warnings
> appear to be dubious as the code is properly (afaict) annotated with explicit casts, and
> I believe they are doing what I intended.
> Basically I have structures that are always 64 bit (so we can have a mixed-mode 32-bit
> guest talk to a 64-bit hypervisor, for instance).  Therefore I am casting between native
> and u64, but the compiler doesn't like this.  Does anyone have any suggestions on ways
> to fix this so the compiler is happy?

	foo = (void *)(unsigned long)x

works for the general case because Linux assumes ptr fits ulong

Similarly in the other direction.

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