linux-kernel - Re: [RFC] kobject: add kobject_init_ng and kobject_init_and

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: <Pine.LNX.4.44L0.0711301616300.2941-100000@iolanthe.rowland.org>
Date:	Fri, 30 Nov 2007 16:19:53 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Greg KH <greg@...ah.com>
cc:	Cornelia Huck <cornelia.huck@...ibm.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Jonathan Corbet <corbet@....net>,
	Randy Dunlap <randy.dunlap@...cle.com>
Subject: Re: [RFC] kobject: add kobject_init_ng and kobject_init_and_add
 functions

On Fri, 30 Nov 2007, Greg KH wrote:

> > My suggestion: Have kobject_init_ng() accept a ktype pointer but not a 
> > parent or name.  Instead, make kobject_add_ng() take the parent and 
> > name (possibly a kset also).  Then when kobject_init_and_add() 
> > encounters an error, it shouldn't do a _put() -- the caller can either 
> > do the _put() or just do a kfree().
> 
> Why not the parent for init()?  Isn't it always known at that time?
> I'll dig to be sure.

Specifying the parent during _add() is more logical, because a kobject
doesn't actually _do_ anything to the parent until it is registered in
the parent's directory.  Or to put it another way, an unregistered
kobject can't have a parent in any meaningful sense so there's no point
specifying the parent in the _init() call.

It's really just a matter of taste.

Alan Stern

-
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/