linux-kernel - Re: [PATCH] jbd/jbd2: add pointer type conversion on void *arg from void * to journal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAM_iQpXJSDvHXtGFET7SgQTXUpk-v+hD24RzSR-sanf=4oY1xA@mail.gmail.com>
Date:	Wed, 3 Aug 2011 10:52:47 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Wang Sheng-Hui <shhuiw@...il.com>
Cc:	Li Zefan <lizf@...fujitsu.com>, "Theodore Ts'o" <tytso@....edu>,
	Jan Kara <jack@...e.cz>, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org
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 <shhuiw@...il.com> wrote:
>
> I remember any * can be assigned directly to void * in ANSI C, but
> void * should be converted to specific point * type. Right?
>

C99 6.3.2.3

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.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/