linux-kernel - Re: [PATCH 2/3 RESEND] ptrace: cleanup address space conversion on ptrace

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Message-ID: <1282581489.1659.13.camel@leonhard>
Date:	Tue, 24 Aug 2010 01:38:09 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Arnd Bergmann <arnd@...db.de>, Roland McGrath <roland@...hat.com>,
	Oleg Nesterov <oleg@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3 RESEND] ptrace: cleanup address space conversion on
 ptrace_request()

2010-08-23 (Mon), 12:21 -0400, Christoph Hellwig:
> Just make this a
> 
> 	void __user *datap = (void __user *)data;
> 
> and you can pass it around withjout additional casts.  Also no need
> for the force here I think.
> 

But removing __force results in following sparse warning:

 ptrace.c:567:40: warning: cast adds address space to expression
(<asn:1>)


-- 
Regards,
Namhyung Kim


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