Re: [RFC PATCHv2] x86/pci: Initial commit for new VMD device driver

[Keith Busch]

On Tue, 6 Oct 2015, Bjorn Helgaas wrote:
> > +static int __init vmd_init(void)
> > +{
> > +	return pci_register_driver(&vmd_drv);
> > +}
> > +module_init(vmd_init);
>
> module_pci_driver(vmd_drv)?

We actually only have a module_init in this driver, and purposely left
out module_exit. We don't want to be able to unload this because we
can't reference count this module for modules depending on it.

'rmmod <module>' returns busy if you're actively using a device that
module is driving, but the end devices VMD provides are not driven by the
VMD driver; it'd be kind of like being able to unload the pci core driver.
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