linux-kernel - Re: [PATCH 7/8] percpu: add __percpu sparse annotations to hw

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Message-ID: <4B5E4E12.7060900@kernel.org>
Date:	Tue, 26 Jan 2010 11:06:10 +0900
From:	Tejun Heo <tj@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org, axboe@...nel.dk,
	rusty@...tcorp.com.au, akpm@...ux-foundation.org,
	ebiederm@...ssion.com, tytso@....edu, Trond.Myklebust@...app.com,
	aelder@....com, hch@...radead.org, viro@...iv.linux.org.uk,
	davem@...emloft.net, netdev@...r.kernel.org, x86@...nel.org,
	mingo@...hat.com, dan.j.williams@...el.com,
	borislav.petkov@....com, ying.huang@...el.com, lenb@...nel.org,
	neilb@...e.de, cl@...ux-foundation.org
Subject: Re: [PATCH 7/8] percpu: add __percpu sparse annotations to	hw_breakpoint

Hello,

On 01/26/2010 10:02 AM, H. Peter Anvin wrote:
> A cast (using __typeof__) combined with an address space override?

That still puts the address specification at the wrong level.  The
problem is that the __typeof__ would be an array type which itself
doesn't have address space set but its members are in address space 3.
So, you need to get *inside* the array type def to change that.  :-(

Thanks.

-- 
tejun
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