Re: [PATCH v4 0/7] arm64: untag user pointers passed to the kernel

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On Wed, Jun 27, 2018 at 06:17:58PM +0100, Catalin Marinas wrote:
> 
> sparse is indeed an option. The current implementation doesn't warn on
> an explicit cast from (void __user *) to (unsigned long) since that's a
> valid thing in the kernel. I couldn't figure out if there's any other
> __attribute__ that could be used to warn of such conversion.

Hi,

sparse doesn't have such attribute but would an new option that would warn
on such cast be a solution for your case?

-- Luc
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