netdev - Re: [RFC][PATCH] Fix another namespace issue with devices assigned to classes

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Message-ID: <AANLkTin_qjU0-xXfMDYeYWRd0BmvT4OIdK4S_GQ3ZYUi@mail.gmail.com>
Date:	Mon, 7 Jun 2010 11:53:10 +0200
From:	Kay Sievers <kay.sievers@...y.org>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Greg KH <greg@...ah.com>, netdev <netdev@...r.kernel.org>
Subject: Re: [RFC][PATCH] Fix another namespace issue with devices assigned to 
	classes

On Mon, Jun 7, 2010 at 11:42, Johannes Berg <johannes@...solutions.net> wrote:
> On Sun, 2010-06-06 at 19:17 +0200, Kay Sievers wrote:
>
>> There is no real difference between classes and buses. Actually we're
>> working on merging them completely inside the kernel. Just declare a
>> "struct bus_type" instead of a "struct class".
>
> Can you please tell me then how to device_create() without a class? I
> cannot seem to create devices without a class at all, even using manual
> allocation (yuck) and device_register crashes the kernel.

Right, this "convenience API" does not exist for buses. It's not doing
much, just allocates a "struct device" and fills in the few values and
calls device_register().

Does your device create a device node? If not, device_create() should
not be used anyway, because the corresponding device_destroy() will
not do anything.

Kay
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