Re: [BKPATCH] bus notifiers for the generic device model

[James Bottomley]

[e-mail] said:
> Why not have a call in the driver that notifies the bus specific core
> of this?  Or just check the status of the return value of your "probe"
> function that the bus provides.  See usb_device_probe() and
> pci_device_probe() for examples of this. 

Well, I did do it this way for parisc.  However, I assumed from reading the 
driver model docs that we were transitioning to using the generic driver probe 
rather than doing probe interceptions like this.

Doing it like this just seems rather clumsy.  wouldn't it be better to 
deprecate bus specific registrations in favour of the generic one?

There is another advantage to notifiers: they can be chained.  Certain bus 
architectures need to do additional setup for things like pci devices.  They 
would be able to do this by attaching a notifier.

James