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Date:	Wed, 3 Aug 2011 10:52:47 +0800
From:	Américo Wang <>
To:	Wang Sheng-Hui <>
Cc:	Li Zefan <>, "Theodore Ts'o" <>,
	Jan Kara <>,,
Subject: Re: [PATCH] jbd/jbd2: add pointer type conversion on void *arg from
 void * to journal_t * explicitly in kjournald/kjournald2

On Wed, Aug 3, 2011 at 10:17 AM, Wang Sheng-Hui <> wrote:
> I remember any * can be assigned directly to void * in ANSI C, but
> void * should be converted to specific point * type. Right?


A pointer to void may be converted to or from a pointer to any
incomplete or object
type. A pointer to any incomplete or object type may be converted to a
pointer to void
and back again; the result shall compare equal to the original pointer.
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