Re: linux-next: build failure after merge of the pm tree

Lorenzo Pieralisi
2015-02-09T03:53:18Z

On Mon, Feb 09, 2015 at 03:19:33AM +0000, Rafael J. Wysocki wrote:
> On Monday, February 09, 2015 01:26:42 PM Stephen Rothwell wrote:
> > Hi Rafael,
> >
> > After merging the pm tree, today's linux-next build (powerpc
> > ppc64_defconfig) failed like this:
> >
> > In file included from drivers/of/of_pci.c:1:0:
> > drivers/of/of_pci.c: In function 'of_pci_get_host_bridge_resources':
> > include/linux/list.h:447:43: error: dereferencing pointer to incomplete type
> > for (pos = list_first_entry(head, typeof(*pos), member); \
> > ^
>
> [cut]
>
> >
> > Caused by commit 14d76b68f281 ("PCI: Use common resource list
> > management code instead of private implementation") interacting with
> > commit d2be00c0fb5a ("of/pci: Free resources on failure in
> > of_pci_get_host_bridge_resources()") from the pci tree.
>
> Thanks for identifying this!

Thank you !

> > I applied the following merge fix patch (which may need more work?).
> > Someone needs to remember to tell Linus about this fix (or similar)
> > when these trees get merged.
>
> The patch looks correct to me, so I did the following.
>
> I pulled the Bjorn's pci/host-generic branch that contained just that one
> commit which conflicted with the Gerry's one into my acpi-resources branch
> and folded the patch below into the merge.
>

It looks fine to me, thank you.

Lorenzo

> > From: Stephen Rothwell <sfr@canb.auug.org.au>
> > Date: Mon, 9 Feb 2015 13:08:24 +1100
> > Subject: [PATCH] of/pci: fix up for "PCI: Use common resource list management
> > code instead of private implementation"
> >
> > Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> > ---
> > drivers/of/of_pci.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c
> > index 60dc36c865b5..110fece2ff53 100644
> > --- a/drivers/of/of_pci.c
> > +++ b/drivers/of/of_pci.c
> > @@ -140,7 +140,7 @@ int of_pci_get_host_bridge_resources(struct device_node *dev,
> > unsigned char busno, unsigned char bus_max,
> > struct list_head *resources, resource_size_t *io_base)
> > {
> > - struct pci_host_bridge_window *window;
> > + struct resource_entry *window;
> > struct resource *res;
> > struct resource *bus_range;
> > struct of_pci_range range;
> > @@ -226,7 +226,7 @@ int of_pci_get_host_bridge_resources(struct device_node *dev,
> > conversion_failed:
> > kfree(res);
> > parse_failed:
> > - list_for_each_entry(window, resources, list)
> > + resource_list_for_each_entry(window, resources)
> > kfree(window->res);
> > pci_free_resource_list(resources);
> > kfree(bus_range);
> >
>
> --
> I speak only for myself.
> Rafael J. Wysocki, Intel Open Source Technology Center.