Re: [PATCH v4 4/8] PCI: Replace dev_node parameter of of_pci_get_host_bridge_resources with device

From: Bjorn Helgaas
Date: Tue May 29 2018 - 09:20:27 EST


On Mon, May 28, 2018 at 12:46:35PM +0200, Jan Kiszka wrote:
> On 2018-05-28 12:00, Vladimir Zapolskiy wrote:
> > Hi Jan, Bjorn,
> >
> > On 05/15/2018 12:07 PM, Jan Kiszka wrote:
> >> From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
> >>
> >> Another step towards a managed version of
> >> of_pci_get_host_bridge_resources(): Feed in the underlying device,
> >> rather than just the OF node. This will allow to use managed resource
> >> allocation internally later on.
> >>
> >> CC: Jingoo Han <jingoohan1@xxxxxxxxx>
> >> CC: Joao Pinto <Joao.Pinto@xxxxxxxxxxxx>
> >> CC: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
> >> Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
> >
> > [snip]
> >
> >> diff --git a/drivers/pci/host/pcie-altera.c b/drivers/pci/host/pcie-altera.c
> >> index a6af62e0256d..61802e55a00c 100644
> >> --- a/drivers/pci/host/pcie-altera.c
> >> +++ b/drivers/pci/host/pcie-altera.c
> >> @@ -488,11 +488,10 @@ static int altera_pcie_parse_request_of_pci_ranges(struct altera_pcie *pcie)
> >> {
> >> int err, res_valid = 0;
> >> struct device *dev = &pcie->pdev->dev;
> >> - struct device_node *np = dev->of_node;
> >> struct resource_entry *win;
> >>
> >> - err = of_pci_get_host_bridge_resources(np, 0, 0xff, &pcie->resources,
> >> - NULL);
> >> + err = of_pci_get_host_bridge_resources(dev, 0, 0xff
> >> + &pcie->resources, NULL);
> >> if (err)
> >> return err;
> >>
> >
> > In case if it is an undiscovered issue, a comma was mistakenly removed,
> > which will result it compilation error.
> >
> > The problem is also found in pci/next , see commit 88e3909aa125.
>
> Yes, that's known. We have a bisection breakage: The issue was fixed
> again by patch 6 in that series.

I updated 88e3909aa125 to fix the bisection issue. I'll rebuild
pci/next later today or tomorrow.