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Re: [PATCH 1/2] pci: cleanup failover sanity check


From: Laurent Vivier
Subject: Re: [PATCH 1/2] pci: cleanup failover sanity check
Date: Sat, 6 Feb 2021 15:32:26 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0

On 06/02/2021 13:39, Laurent Vivier wrote:
> Commit a1190ab628 has added a "allow_unplug_during_migration = true" at
> the end of the main "if" block, so it is not needed to set it anymore
> in the previous checking.
> 
> Remove it, to have only sub-ifs that check for needed conditions and exit
> if one fails.
> 
> Fixes: 4f5b6a05a4e7 ("pci: add option for net failover")
> Fixes: a1190ab628c0 ("migration: allow unplug during migration for failover 
> devices")
> Cc: jfreimann@redhat.com
> Signed-off-by: Laurent Vivier <lvivier@virtlab415.virt.lab.eng.bos.redhat.com>

Sorry, git misconfiguration, read:

Signed-off-by: Laurent Vivier <lvivier@redhat.com>

> ---
>  hw/pci/pci.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/hw/pci/pci.c b/hw/pci/pci.c
> index 512e9042ffae..ecb7aa31fabd 100644
> --- a/hw/pci/pci.c
> +++ b/hw/pci/pci.c
> @@ -2120,10 +2120,8 @@ static void pci_qdev_realize(DeviceState *qdev, Error 
> **errp)
>              pci_qdev_unrealize(DEVICE(pci_dev));
>              return;
>          }
> -        if (!(pci_dev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION)
> -            && (PCI_FUNC(pci_dev->devfn) == 0)) {
> -            qdev->allow_unplug_during_migration = true;
> -        } else {
> +        if ((pci_dev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION)
> +            || (PCI_FUNC(pci_dev->devfn) != 0)) {
>              error_setg(errp, "failover: primary device must be in its own "
>                                "PCI slot");
>              pci_qdev_unrealize(DEVICE(pci_dev));
> 




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