Re: [PATCH v4 1/4] PCI: Introduce pcim_alloc_irq_vectors()

Robert Richter
2021-02-23T08:04:44Z

On 22.02.21 23:14:15, Dejin Zheng wrote:
> On Mon, Feb 22, 2021 at 11:56:08AM +0100, Robert Richter wrote:
> > On 20.02.21 00:46:49, Dejin Zheng wrote:
> > > > On 18.02.21 23:04:55, Dejin Zheng wrote:
> >
> > > > > + if (!dr || !dr->enabled)
> > > here checks whether the pci device is enabled.
> >
> > What is the purpose of this? The device "is_managed" or not.
> >
> The device is managed or not by check whether "dr" is NULL. And
> check the "dr->enabled" is for the PCI device enable. I think it
> may not make sense to apply for irq vectors when PCI device is not
> enabled.

I don't see how a disabled device affects in any way the release of
the irq vectors during device removal. dr is always non-null in case
the device is managed, a check isn't needed for that.

-Robert