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

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Date:	Tue, 13 May 2008 13:43:57 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	"Randy.Dunlap" <rdunlap@...otime.net>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	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

"Randy.Dunlap" <rdunlap@...otime.net> writes:

> 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.


Good catch.

Thanks Randy.

Eric
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