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Message-ID: <4274cde6-3a64-e549-a833-3930732c756d@intel.com>
Date: Thu, 19 Jan 2023 10:28:16 -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 2/9] e1000e: 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/e1000e/netdev.c | 7 -------
> 1 file changed, 7 deletions(-)
Reviewed-by: Tony Nguyen <anthony.l.nguyen@...el.com>
> diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
> index 04acd1a992fa..e1eb1de88bf9 100644
> --- a/drivers/net/ethernet/intel/e1000e/netdev.c
> +++ b/drivers/net/ethernet/intel/e1000e/netdev.c
> @@ -7418,9 +7418,6 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> if (err)
> goto err_pci_reg;
>
> - /* AER (Advanced Error Reporting) hooks */
> - pci_enable_pcie_error_reporting(pdev);
> -
> pci_set_master(pdev);
> /* PCI config space info */
> err = pci_save_state(pdev);
> @@ -7708,7 +7705,6 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> err_ioremap:
> free_netdev(netdev);
> err_alloc_etherdev:
> - pci_disable_pcie_error_reporting(pdev);
> pci_release_mem_regions(pdev);
> err_pci_reg:
> err_dma:
> @@ -7775,9 +7771,6 @@ static void e1000_remove(struct pci_dev *pdev)
>
> free_netdev(netdev);
>
> - /* AER disable */
> - pci_disable_pcie_error_reporting(pdev);
> -
> pci_disable_device(pdev);
> }
>
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