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Date:   Fri, 29 Nov 2019 18:11:59 +0000 (UTC)
From:   Christopher Lameter <cl@linux.com>
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To:     Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
cc:     Dennis Zhou <dennis@kernel.org>,
        Ben Dooks <ben.dooks@codethink.co.uk>,
        linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
        Tejun Heo <tj@kernel.org>, Nicholas Piggin <npiggin@gmail.com>,
        Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH] fix __percpu annotation in asm-generic
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On Wed, 27 Nov 2019, Luc Van Oostenryck wrote:

> 1) it would strip any address space, not just __percpu, so:
>    it would need to be combined with __verify_pcpu_ptr() or,
>    * a better name should be used,

typeof_cast_kernel() to express the fact that it creates a kernel pointer
and ignored the attributes??

>    * it should be defined in a generic header, any idea where?

include/linux/compiler-types.h

> 2) while I find the current solution:
> 	typeof(T) __kernel __force *ptr = ...;

It would be

   typeof_cast_kernel(&T) *xx = xxx

or so?