Messages in this thread | | | Date | Thu, 28 Jun 2018 08:17:59 +0200 | From | Luc Van Oostenryck <> | Subject | 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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