netdev - Re: [PATCH] Driver-core: Always create network class directories in get_device

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Message-ID: <m1r5k0c7op.fsf@fess.ebiederm.org>
Date:	Mon, 21 Jun 2010 16:00:38 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Greg KH <greg@...ah.com>
Cc:	Johannes Berg <johannes@...solutions.net>,
	netdev <netdev@...r.kernel.org>,
	Kay Sievers <kay.sievers@...y.org>
Subject: Re: [PATCH] Driver-core: Always create network class directories in get_device_parent.

Greg KH <greg@...ah.com> writes:

>> diff --git a/drivers/base/core.c b/drivers/base/core.c
>> index 9630fbd..ffb8443 100644
>> --- a/drivers/base/core.c
>> +++ b/drivers/base/core.c
>> @@ -673,7 +673,7 @@ static struct kobject *get_device_parent(struct device *dev,
>>  		 */
>>  		if (parent == NULL)
>>  			parent_kobj = virtual_device_parent(dev);
>> -		else if (parent->class)
>> +		else if (parent->class && (strcmp(dev->class->name, "net") != 0))
>
> No, we will not have subsystem specific hacks in the driver core like
> this.  What would cause us to ever be able to delete this line?

That entire if clause is a hack.  I have just made it narrower.

If it were actually a serious possibility to convert these drivers with the
existing device core I would be happy to see something else.

Kyle and Johannes went back and forth and could not figure out how to
correctly convert the mac80211_hwsim driver to a bus device, the support
is not in the device core.

Eric
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