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SubjectRe: [PATCH 1/2] [RESEND] of: provide of_n_{addr,size}_cells wrappers for !CONFIG_OF
Hi Rob,

On Mon, Sep 18, 2017 at 11:28 PM, Rob Herring <> wrote:
> On Mon, Sep 11, 2017 at 3:07 PM, Arnd Bergmann <> wrote:
>> The pci-rcar driver is enabled for compile tests, and this has
>> shown that the driver cannot build without CONFIG_OF,
>> following the inclusion of f8f2fe7355fb "PCI: rcar: Use new OF
>> interrupt mapping when possible":
>> drivers/pci/host/pcie-rcar.c: In function 'pci_dma_range_parser_init':
>> drivers/pci/host/pcie-rcar.c:1039:2: error: implicit declaration of function 'of_n_addr_cells' [-Werror=implicit-function-declaration]
>> parser->pna = of_n_addr_cells(node);
>> ^
>> As pointed out by Ben Dooks and Geert Uytterhoeven, this is actually
>> supposed to build fine, which we can achieve if we make the
>> declaration of of_irq_parse_and_map_pci conditional on CONFIG_OF
>> and provide an empty inline function otherwise, as we do for
>> a lot of other of interfaces.
>> This lets us build the rcar_pci driver again without CONFIG_OF
>> for build testing. All platforms using this driver select OF,
>> so this doesn't change anything for the users.
> Sorry, I keep missing this. It's a flaw in my mail filtering...
> There's a patch series[1] to factor out pci_dma_range_parser_init of
> the driver which should also fix this. I'd prefer not to take this
> because ideally all address parsing should be within the DT core code.
> Rob
> [1]

Yes, that looks like a better solution.

(For those who didn't see the rest of the series: of_pci_dma_range_parser_init()
in provided in of/address.c, and does have a dummy)



Geert Uytterhoeven -- There's lots of Linux beyond ia32 --

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

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