[PATCH v3 01/10] PCI: Keep pci_fixup_irqs() around after init

[Bjorn Helgaas]

On Thu, Jul 26, 2012 at 12:55 PM, Thierry Reding
<thierry.reding at avionic-design.de> wrote:
> When using deferred driver probing, PCI host controller drivers may
> actually require this function after the init stage.
>
> Signed-off-by: Thierry Reding <thierry.reding at avionic-design.de>
> ---
> Changes in v3:
> - none
>
> Changes in v2:
> - use __devinit annotations

Your original patch removed __init completely.  Here you change it to
__devinit.  That means we decide whether to discard the function based
on whether CONFIG_HOTPLUG is supported.  But I think your point is not
about hotplug; it's merely that we should be able to scan a PCI bus
after init-time.  We ought to be able to do a late PCI scan even if
hotplug is not supported.

Therefore, I'd be inclined to remove __init completely unless you have
another reason for preferring __devinit.

>  drivers/pci/setup-irq.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pci/setup-irq.c b/drivers/pci/setup-irq.c
> index eb219a1..f0bcd56 100644
> --- a/drivers/pci/setup-irq.c
> +++ b/drivers/pci/setup-irq.c
> @@ -18,7 +18,7 @@
>  #include <linux/cache.h>
>
>
> -static void __init
> +static void __devinit
>  pdev_fixup_irq(struct pci_dev *dev,
>                u8 (*swizzle)(struct pci_dev *, u8 *),
>                int (*map_irq)(const struct pci_dev *, u8, u8))
> @@ -54,7 +54,7 @@ pdev_fixup_irq(struct pci_dev *dev,
>         pcibios_update_irq(dev, irq);
>  }
>
> -void __init
> +void __devinit
>  pci_fixup_irqs(u8 (*swizzle)(struct pci_dev *, u8 *),
>                int (*map_irq)(const struct pci_dev *, u8, u8))
>  {
> --
> 1.7.11.2
>