linux-kernel - Re: [PATCH] Fix kobject_rename and !CONFIG

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Date:	Tue, 13 May 2008 11:23:33 -0700 (PDT)
From:	"Randy.Dunlap" <rdunlap@...otime.net>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
cc:	Greg KH <greg@...ah.com>, Benjamin Thery <benjamin.thery@...l.net>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Greg KH <gregkh@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Tejun Heo <htejun@...il.com>,
	Al Viro <viro@....linux.org.uk>,
	Daniel Lezcano <dlezcano@...ibm.com>,
	"Serge E. Hallyn" <serue@...ibm.com>,
	Pavel Emelyanov <xemul@...nvz.org>, netdev@...r.kernel.org
Subject: Re: [PATCH] Fix kobject_rename and !CONFIG_SYSFS v2

On Tue, 13 May 2008, Eric W. Biederman wrote:

> Changelog:
> v2:	Added a declaration of kboject_set_name to sysfs.h
> 	so the code actually compiles with !CONFIG_SYSFS.
> 
> Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
> ---
>  Documentation/kobject.txt |    4 ++++
>  drivers/base/core.c       |    5 +++++
>  include/linux/sysfs.h     |    4 +++-
>  lib/kobject.c             |   18 +++++-------------
>  4 files changed, 17 insertions(+), 14 deletions(-)
> 
> diff --git a/Documentation/kobject.txt b/Documentation/kobject.txt
> index bf3256e..79184b4 100644
> --- a/Documentation/kobject.txt
> +++ b/Documentation/kobject.txt
> @@ -118,6 +118,10 @@ the name of the kobject, call kobject_rename():
>  
>      int kobject_rename(struct kobject *kobj, const char *new_name);
>  
> +Note kobject_rename does perform any locking or have a solid notion of

                           ^not

> +what names are valid so the provide must provide their own sanity checking
                               ~~~~~~~
                               caller

> +and serialization.
> +
>  There is a function called kobject_set_name() but that is legacy cruft and
>  is being removed.  If your code needs to call this function, it is
>  incorrect and needs to be fixed.

-- 
~Randy
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