Subject: Re: [PATCH] igc: Ignore AER reset when device is suspended

From: "Guilherme G. Piccoli" <[email-masked]>
Date: Tue, 20 Jun 2023 12:05:21 -0300

On 20/06/2023 14:36, Kai-Heng Feng wrote:
> [...]
> So avoid resetting the device if it's not resumed. Once the device is
> fully resumed, the device can work normally.
> 
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=216850
> Signed-off-by: Kai-Heng Feng <[email-masked]>
> ---
>  drivers/net/ethernet/intel/igc/igc_main.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
> index fa764190f270..6a46f886ff43 100644
> --- a/drivers/net/ethernet/intel/igc/igc_main.c
> +++ b/drivers/net/ethernet/intel/igc/igc_main.c
> @@ -6962,6 +6962,9 @@ static pci_ers_result_t igc_io_error_detected(struct pci_dev *pdev,
>  	struct net_device *netdev = pci_get_drvdata(pdev);
>  	struct igc_adapter *adapter = netdev_priv(netdev);
>  
> +	if (!pci_is_enabled(pdev))
> +		return 0;
> +
>  	netif_device_detach(netdev);
>  
>  	if (state == pci_channel_io_perm_failure)

Makes perfect sense to me, based on the days I've worked a lot with PCI
resets and whatnot heh

Feel free to add:
Reviewed-by: Guilherme G. Piccoli <[email-masked]>

Cheers!