From: Christopher Lameter <cl@linux.com>
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
Date: Fri, 29 Nov 2019 18:11:59 +0000 (UTC) [thread overview]
Message-ID: <alpine.DEB.2.21.1911291808530.1365@www.lameter.com> (raw)
In-Reply-To: <20191127225432.ttwxm3hxtg5utfaz@ltop.local>
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?
next prev parent reply other threads:[~2019-11-29 18:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-26 20:06 [PATCH] fix __percpu annotation in asm-generic Luc Van Oostenryck
2019-11-26 20:06 ` Luc Van Oostenryck
2019-11-27 15:55 ` Christopher Lameter
2019-11-27 15:55 ` Christopher Lameter
2019-11-27 17:53 ` Dennis Zhou
2019-11-27 17:53 ` Dennis Zhou
2019-11-27 22:54 ` Luc Van Oostenryck
2019-11-27 22:54 ` Luc Van Oostenryck
2019-11-29 18:11 ` Christopher Lameter [this message]
2019-11-29 18:11 ` Christopher Lameter
2019-11-30 0:00 ` Luc Van Oostenryck
2019-11-30 0:00 ` Luc Van Oostenryck
2019-12-02 19:07 ` Dennis Zhou
2019-12-02 19:07 ` Dennis Zhou
2019-12-02 19:42 ` Christopher Lameter
2019-12-02 19:42 ` Christopher Lameter
2019-12-03 3:01 ` Luc Van Oostenryck
2019-12-03 3:01 ` Luc Van Oostenryck
2020-03-24 4:13 ` Jason A. Donenfeld
2020-03-24 6:44 ` Luc Van Oostenryck
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