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

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Date:	Tue, 6 Dec 2011 09:28:56 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the pci tree

On Mon, 5 Dec 2011 20:16:54 -0700
Bjorn Helgaas <bhelgaas@...gle.com> wrote:

> On Mon, Dec 5, 2011 at 5:18 PM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> > Hi Jesse,
> >
> > After merging the pci tree, today's linux-next build
> > (powerpc_ppc64_defconfig) failed like this:
> >
> > arch/powerpc/kernel/pci_64.c: In function 'pcibios_map_io_space':
> > arch/powerpc/kernel/pci_64.c:201:2: error: implicit declaration of function 'pcibios_phb_map_phb_io_space' [-Werror=implicit-function-declaration]
> >
> > Caused by commit fb8fca4ff3f7 ("powerpc/PCI: split PHB part out of
> > pcibios_map_io_space()").
> >
> > arch/powerpc/kernel/pci-common.c: In function 'pcibios_scan_phb':
> > arch/powerpc/kernel/pci-common.c:1726:7: error: incompatible type for argument 5 of 'pci_create_root_bus'
> > include/linux/pci.h:665:17: note: expected 'struct list_head *' but argument is of type 'struct list_head'
> >
> > Caused by commit 3c73944e7ace ("powerpc/PCI: convert to
> > pci_create_root_bus()").
> >
> > I have used the pci tree from next-20111205 for today.
> > --
> > Cheers,
> > Stephen Rothwell                    sfr@...b.auug.org.au
> > http://www.canb.auug.org.au/~sfr/
> 
> I fixed these; the updated patches are on
> git://github.com/bjorn-helgaas/linux.git on
> the "pci-scan-v4" branch (head f9da8b214fef1ac4072e4af2a663293ab965f796).
> 
> Here's the incremental diff from v3 to v4 (hand-created and whitespace-damaged):
> 
> diff --git a/c4677881a:arch/powerpc/kernel/pci_64.c
> b/f9da8b214:arch/powerpc/kernel/pci_64.c
> index 4401425..3318d39 100644
> --- a/c4677881a:arch/powerpc/kernel/pci_64.c
> +++ b/f9da8b214:arch/powerpc/kernel/pci_64.c
> @@ -197,7 +198,7 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
>                 return 0;
>         }
> 
> -       return pcibios_phb_map_phb_io_space(pci_bus_to_host(bus));
> +       return pcibios_map_phb_io_space(pci_bus_to_host(bus));
>  }
>  EXPORT_SYMBOL_GPL(pcibios_map_io_space);
> 
> diff --git a/c4677881a:arch/powerpc/kernel/pci-common.c
> b/f9da8b214:arch/powerpc/kernel/pci-common.c
> index 8c47c57..2aa707b 100644
> --- a/c4677881a:arch/powerpc/kernel/pci-common.c
> +++ b/f9da8b214:arch/powerpc/kernel/pci-common.c
> @@ -1711,7 +1712,7 @@ void __devinit pcibios_scan_phb(struct
> pci_controller *hose)
> 
>         /* Create an empty bus for the toplevel */
>         bus = pci_create_root_bus(hose->parent, hose->first_busno,
> -                                 hose->ops, hose, resources);
> +                                 hose->ops, hose, &resources);
>         if (bus == NULL) {
>                 pr_err("Failed to create bus for PCI domain %04x\n",
>                         hose->global_number);
> 

I merged this fix into the original commit as a v2 patch, hope today's
linux-next builds.

Thanks,
-- 
Jesse Barnes, Intel Open Source Technology Center

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