Re: [PATCH v8 1/3] perf: cavium: Support memory controller PMU counters

Greg KH
2017-07-26T17:34:01Z

On Wed, Jul 26, 2017 at 06:30:49PM +0200, Borislav Petkov wrote:
> On Wed, Jul 26, 2017 at 09:19:49AM -0700, Greg KH wrote:
> > On Wed, Jul 26, 2017 at 05:55:48PM +0200, Borislav Petkov wrote:
> > > On Wed, Jul 26, 2017 at 05:45:15PM +0200, Jan Glauber wrote:
> > > > The PMU/EDAC devices are all PCI devices do I need the 'struct pci_dev *'.
> > > > I'm not aware of other ways to access these devices. Please enlighten
> > > > me if I'm missing something.
> > >
> > > Me enlighten you on Cavium hardware?! You're funny.
> > >
> > > So I don't know whether the PCI hotplug code can run more than one
> > > function upon PCI ID detection. Probably Greg will say, write a
> > > multiplexer wrapper. :-)
> >
> > -ENOCONTEXT....
> >
> > Anyway, pci questions are best asked on the linux-pci@vger list. And
> > yes, all PCI devices end up with a 'struct pci_dev *' automatically.
>
> Simple: so they have a PCI ID of a memory contoller and want to hotplug
> two drivers for it. And those two drivers should remain independent from
> each other.

Hahahahaha, no. That's crazy, you were right in guessing what my answer
was going to be :)

greg k-h