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From: Ethan Zhao <xerces.zhao@gmail.com>
To: Kuppuswamy Sathyanarayanan  <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	linux-pci <linux-pci@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Ashok Raj <ashok.raj@intel.com>,
	knsathya@kernel.org
Subject: Re: [PATCH v11 1/5] PCI: Conditionally initialize host bridge native_* members
Date: Wed, 28 Oct 2020 14:09:18 +0800
Message-ID: <CAKF3qh1j1GAOxK8QAwAgPpn3wxtvZgp8QJQ2zjcv5B=jEVG_eg@mail.gmail.com> (raw)
In-Reply-To: <fcbe8a624166a1101a755edfef44a185d32ff493.1603766889.git.sathyanarayanan.kuppuswamy@linux.intel.com>

On Tue, Oct 27, 2020 at 10:00 PM Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com> wrote:
>
> 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@linux.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 4289030b0fff..756fa60ca708 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
  If CONFIG_PCIEPORTBUS wasn't defined, leave them to "unknown" value ?

> +       bridge->native_ltr = 1;
> +       bridge->native_shpc_hotplug = 1;
>
>         device_initialize(&bridge->dev);
>  }
> --
> 2.17.1
>

  reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-27  2:57 [PATCH v11 0/5] Simplify PCIe native ownership detection logic Kuppuswamy Sathyanarayanan
2020-10-27  2:57 ` [PATCH v11 1/5] PCI: Conditionally initialize host bridge native_* members Kuppuswamy Sathyanarayanan
2020-10-28  6:09   ` Ethan Zhao [this message]
2020-10-28 17:14     ` Kuppuswamy, Sathyanarayanan
2020-10-27  2:57 ` [PATCH v11 2/5] ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set Kuppuswamy Sathyanarayanan
2020-11-25 20:12   ` Bjorn Helgaas
2020-11-25 22:21     ` Kuppuswamy, Sathyanarayanan
2020-11-25 22:25       ` Bjorn Helgaas
2020-11-25 22:38         ` Kuppuswamy, Sathyanarayanan
2020-11-25 20:28   ` Bjorn Helgaas
2020-11-26  0:58     ` Kuppuswamy, Sathyanarayanan
2020-10-27  2:57 ` [PATCH v11 3/5] ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native " Kuppuswamy Sathyanarayanan
2020-11-25 20:50   ` Bjorn Helgaas
2020-10-27  2:57 ` [PATCH v11 4/5] PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable logic Kuppuswamy Sathyanarayanan
2020-10-28  6:00   ` Ethan Zhao
2020-10-28 17:13     ` Kuppuswamy, Sathyanarayanan
2020-11-02  9:59       ` Ethan Zhao
2020-10-27  2:57 ` [PATCH v11 5/5] PCI/DPC: Move AER/DPC dependency checks out of DPC driver Kuppuswamy Sathyanarayanan
2020-11-13 21:59 ` [PATCH v11 0/5] Simplify PCIe native ownership detection logic Kuppuswamy, Sathyanarayanan

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