linux-kernel - Re: [PATCH v9 1/5] PCI: Conditionally initialize host bridge native

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Date:   Tue, 22 Sep 2020 15:39:50 -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 v9 1/5] PCI: Conditionally initialize host bridge
 native_* members

I got 1/5, 3/5, and 5/5 (and no cover letter).  Is there a 2/5 and a
4/5?  Not sure if I should wait for more, or review these three as-is?

On Fri, Sep 18, 2020 at 12:58:30PM -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.
> 
> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>
> ---
>  drivers/pci/probe.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
> index 03d37128a24f..0da0fc034413 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;
>  	bridge->native_dpc = 1;
> +#endif
> +	bridge->native_ltr = 1;
> +	bridge->native_shpc_hotplug = 1;
>  
>  	device_initialize(&bridge->dev);
>  }
> -- 
> 2.17.1
>