Re: [PATCH v2 03/15] MIPS: PCI: Compatibility with ARM-like PCI host drivers

From: Florian Fainelli
Date: Wed May 04 2016 - 21:36:41 EST

Hi Paul,

On 04/04/16 03:09, Paul Burton wrote:
> Hi Florian,
> Just an FYI, the pcie-xilinx driver I wrote this for has since been
> converted away from the ARM-like pci_common_init_dev & struct hw_pci to
> use only functions provided by the core PCI subsystem[1]. As a result
> I've stopped using this patch & don't plan to continue work on it.
> Perhaps it would be cleanest to do a similar conversion for the driver
> you're using?

Yes, I did just that, but as of v4.6-rc6, I am seeing a bunch of
undefined references while doing so:

arch/mips/pci/built-in.o: In function `pcibios_enable_device':
(.text+0x550): undefined reference to `pcibios_plat_dev_init'
arch/mips/pci/built-in.o: In function `pcibios_init':
pci.c:(.init.text+0x6c): undefined reference to `pcibios_map_irq'
pci.c:(.init.text+0x78): undefined reference to `pcibios_map_irq'

and this makes perfect sense because arch/mips/pci/pci.c is referencing
those functions, while I did not add anything for BMIPS_GENERIC.

At this point, I would very much prefer that the MIPS/Linux kernel did
not rely on the different machines to provide those implementations
(though it definitively is not a big deal to add them, it just feels
unnecessary), I will try to cook a patch for that and provide dummy