linux-kernel - Re: [PATCH v8 1/5] PCI: Conditionally initialize host bridge native

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Date:   Thu, 10 Sep 2020 14:49:01 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     sathyanarayanan.kuppuswamy@...ux.intel.com
Cc:     bhelgaas@...gle.com, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, ashok.raj@...el.com
Subject: Re: [PATCH v8 1/5] PCI: Conditionally initialize host bridge
 native_* members

On Fri, Jul 24, 2020 at 08:58:52PM -0700, sathyanarayanan.kuppuswamy@...ux.intel.com wrote:
> From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>
> 
> If CONFIG_PCIEPORTBUS is not enabled in kernel then initialing
> struct pci_host_bridge PCIe specific native_* members to "1" is
> incorrect. So protect the PCIe specific member initialization
> with CONFIG_PCIEPORTBUS.

s/initialing/initializing/

> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>
> ---
>  drivers/pci/probe.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
> index 2f66988cea25..a94b97564ceb 100644
> --- a/drivers/pci/probe.c
> +++ b/drivers/pci/probe.c
> @@ -588,12 +588,14 @@ static void pci_init_host_bridge(struct pci_host_bridge *bridge)
>  	 * may implement its own AER handling and use _OSC to prevent the
>  	 * OS from interfering.
>  	 */
> +#ifdef CONFIG_PCIEPORTBUS
>  	bridge->native_aer = 1;
>  	bridge->native_pcie_hotplug = 1;
> -	bridge->native_shpc_hotplug = 1;
>  	bridge->native_pme = 1;
>  	bridge->native_ltr = 1;

native_ltr isn't dependent on PCIEPORTBUS either, is it?  It's only
used for ASPM.

>  	bridge->native_dpc = 1;
> +#endif
> +	bridge->native_shpc_hotplug = 1;
>  
>  	device_initialize(&bridge->dev);
>  }
> -- 
> 2.17.1
>