Re: [Bug 9872] Driver 'sd' needs updating - please use bus_type methods

[James Bottomley <James.Bottomley@HansenPartnership.com>]

On Sat, 2008-05-03 at 17:22 -0700, bugme-daemon@bugzilla.kernel.org
wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=9872

This isn't a bug.  There have been numerous discussions about fixing it.

The warning comes out of here in drivers/base/driver.c:

	if ((drv->bus->probe && drv->probe) ||
	    (drv->bus->remove && drv->remove) ||
	    (drv->bus->shutdown && drv->shutdown))
		printk(KERN_WARNING "Driver '%s' needs updating - please use "
			"bus_type methods\n", drv->name);

The problem is that SCSI drivers have both: SCSI uses the bus methods to
trigger the probe and remove (as it must having a bus method) but it
also uses the individual struct driver probe and remove methods to
rethrow the events to the ULDs.

According to Kay and Greg, this is a legitimate way of operating, and
they're not going to remove the driver methods (otherwise we'd just take
them into struct scsi_driver), so we're stuck trying to find a way to
prevent the base warning about this.

James