netdev - Re: [PATCH 6/9] ice: Remove redundant pci_enable_pcie_error

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Date:   Thu, 19 Jan 2023 10:28:47 -0800
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     Bjorn Helgaas <helgaas@...nel.org>, <linux-pci@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "Jesse Brandeburg" <jesse.brandeburg@...el.com>,
        <intel-wired-lan@...ts.osuosl.org>, <netdev@...r.kernel.org>
Subject: Re: [PATCH 6/9] ice: Remove redundant
 pci_enable_pcie_error_reporting()

On 1/18/2023 3:46 PM, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@...gle.com>
> 
> pci_enable_pcie_error_reporting() enables the device to send ERR_*
> Messages.  Since f26e58bf6f54 ("PCI/AER: Enable error reporting when AER is
> native"), the PCI core does this for all devices during enumeration.
> 
> Remove the redundant pci_enable_pcie_error_reporting() call from the
> driver.  Also remove the corresponding pci_disable_pcie_error_reporting()
> from the driver .remove() path.
> 
> Note that this doesn't control interrupt generation by the Root Port; that
> is controlled by the AER Root Error Command register, which is managed by
> the AER service driver.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
> Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>
> Cc: Tony Nguyen <anthony.l.nguyen@...el.com>
> Cc: intel-wired-lan@...ts.osuosl.org
> Cc: netdev@...r.kernel.org
> ---
>   drivers/net/ethernet/intel/ice/ice_main.c | 3 ---
>   1 file changed, 3 deletions(-)

Reviewed-by: Tony Nguyen <anthony.l.nguyen@...el.com>

> diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
> index a9a7f8b52140..9fb68919df02 100644
> --- a/drivers/net/ethernet/intel/ice/ice_main.c
> +++ b/drivers/net/ethernet/intel/ice/ice_main.c
> @@ -4672,7 +4672,6 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
>   		return err;
>   	}
>   
> -	pci_enable_pcie_error_reporting(pdev);
>   	pci_set_master(pdev);
>   
>   	pf->pdev = pdev;
> @@ -4975,7 +4974,6 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
>   	ice_devlink_destroy_regions(pf);
>   	ice_deinit_hw(hw);
>   err_exit_unroll:
> -	pci_disable_pcie_error_reporting(pdev);
>   	pci_disable_device(pdev);
>   	return err;
>   }
> @@ -5103,7 +5101,6 @@ static void ice_remove(struct pci_dev *pdev)
>   	ice_reset(&pf->hw, ICE_RESET_PFR);
>   	pci_wait_for_pending_transaction(pdev);
>   	ice_clear_interrupt_scheme(pf);
> -	pci_disable_pcie_error_reporting(pdev);
>   	pci_disable_device(pdev);
>   }
>