Re: [PATCH] PCI: Export pci_probe_reset_function()

[Alex Williamson <alex.williamson@redhat.com>]

On Thu, 2015-04-09 at 15:00 -0500, Bjorn Helgaas wrote:
> On Thu, Apr 09, 2015 at 02:58:46PM -0500, Bjorn Helgaas wrote:
> > On Thu, Apr 09, 2015 at 09:51:43AM -0600, Alex Williamson wrote:
> > > The equivalent bus and slot versions of this are already exported and
> > > vfio-pci would like a function-probe available so we can expose
> > > function-level reset capabilities to the user without necessarily
> > > using it to perform a reset before enabling the device for the user.
> > > 
> > > Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
> > 
> > Applied to pci/virtualization for v4.1, thanks!
> 
> Actually, maybe it makes more sense for you to apply this along with the
> vfio patch that uses it?  So if you want:
> 
> Acked-by: Bjorn Helgaas <bhelgaas@google.com>

That would be more convenient, I'll take it.  Thanks!

Alex

> > > ---
> > >  drivers/pci/pci.c   |    1 +
> > >  include/linux/pci.h |    1 +
> > >  2 files changed, 2 insertions(+)
> > > 
> > > diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> > > index 81f06e8..9f3e691 100644
> > > --- a/drivers/pci/pci.c
> > > +++ b/drivers/pci/pci.c
> > > @@ -3524,6 +3524,7 @@ int pci_probe_reset_function(struct pci_dev *dev)
> > >  {
> > >  	return pci_dev_reset(dev, 1);
> > >  }
> > > +EXPORT_SYMBOL_GPL(pci_probe_reset_function);
> > >  
> > >  /**
> > >   * pci_reset_function - quiesce and reset a PCI device function
> > > diff --git a/include/linux/pci.h b/include/linux/pci.h
> > > index 211e9da..233d1ae 100644
> > > --- a/include/linux/pci.h
> > > +++ b/include/linux/pci.h
> > > @@ -986,6 +986,7 @@ int pcie_get_minimum_link(struct pci_dev *dev, enum pci_bus_speed *speed,
> > >  			  enum pcie_link_width *width);
> > >  int __pci_reset_function(struct pci_dev *dev);
> > >  int __pci_reset_function_locked(struct pci_dev *dev);
> > > +int pci_probe_reset_function(struct pci_dev *dev);
> > >  int pci_reset_function(struct pci_dev *dev);
> > >  int pci_try_reset_function(struct pci_dev *dev);
> > >  int pci_probe_reset_slot(struct pci_slot *slot);
> > >