Re: [PATCH v4 0/7] arm64: untag user pointers passed to the kernel
From: Luc Van Oostenryck
Date: Thu Jun 28 2018 - 02:18:18 EST
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