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Re: [PATCH] hw/i386/ich9: add comment explaining an argument to acpi_pci
From: |
Ani Sinha |
Subject: |
Re: [PATCH] hw/i386/ich9: add comment explaining an argument to acpi_pcihp_reset call |
Date: |
Thu, 29 Jul 2021 18:43:48 +0530 (IST) |
User-agent: |
Alpine 2.22 (DEB 394 2020-01-19) |
ping ...
On Tue, 27 Jul 2021, Ani Sinha wrote:
> acpi_pcihp_reset() call from ich9/pm_reset() passes an unconditional truth
> value
> as the second argument. Added a commnet here to explain the reason why the
> argument is being passed unconditionally.
>
> Signed-off-by: Ani Sinha <ani@anisinha.ca>
> ---
> hw/acpi/ich9.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
> index 778e27b659..b2e3c46075 100644
> --- a/hw/acpi/ich9.c
> +++ b/hw/acpi/ich9.c
> @@ -281,6 +281,11 @@ static void pm_reset(void *opaque)
> pm->smi_en_wmask = ~0;
>
> if (pm->use_acpi_hotplug_bridge) {
> + /*
> + * PCI Express root buses do not support hot-plug, for
> + * details see docs/pcie.txt. Hence, the second argument
> + * is unconditionally true.
> + */
> acpi_pcihp_reset(&pm->acpi_pci_hotplug, true);
> }
>
> --
> 2.25.1
>
>