diff mbox series

[16/28] sfc: falcon: Drop redundant pci_enable_pcie_error_reporting()

Message ID 20230307181940.868828-17-helgaas@kernel.org
State New
Headers
Series PCI/AER: Remove redundant Device Control Error Reporting Enable |

Commit Message

Bjorn Helgaas March 7, 2023, 6:19 p.m. UTC 
  From: Bjorn Helgaas <bhelgaas@google.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, so the
driver doesn't need to do it itself.

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 only controls ERR_* Messages from the device.  An ERR_*
Message may cause the Root Port to generate an interrupt, depending on the
AER Root Error Command register managed by the AER service driver.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Edward Cree <ecree.xilinx@gmail.com>
Cc: Martin Habets <habetsm.xilinx@gmail.com>
---
 drivers/net/ethernet/sfc/falcon/efx.c | 9 ---------
 1 file changed, 9 deletions(-)

Comments

Edward Cree March 8, 2023, 4:12 p.m. UTC | #1 
On 07/03/2023 18:19, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@google.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, so the
> driver doesn't need to do it itself.
> 
> 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 only controls ERR_* Messages from the device.  An ERR_*
> Message may cause the Root Port to generate an interrupt, depending on the
> AER Root Error Command register managed by the AER service driver.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Edward Cree <ecree.xilinx@gmail.com>
> Cc: Martin Habets <habetsm.xilinx@gmail.com>
> ---

Acked-by: Edward Cree <ecree.xilinx@gmail.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c
index e151b0957751..e001f27085c6 100644
--- a/drivers/net/ethernet/sfc/falcon/efx.c
+++ b/drivers/net/ethernet/sfc/falcon/efx.c
@@ -17,7 +17,6 @@ 
 #include <linux/ethtool.h>
 #include <linux/topology.h>
 #include <linux/gfp.h>
-#include <linux/aer.h>
 #include <linux/interrupt.h>
 #include "net_driver.h"
 #include "efx.h"
@@ -2765,8 +2764,6 @@  static void ef4_pci_remove(struct pci_dev *pci_dev)
 
 	ef4_fini_struct(efx);
 	free_netdev(efx->net_dev);
-
-	pci_disable_pcie_error_reporting(pci_dev);
 };
 
 /* NIC VPD information
@@ -2927,12 +2924,6 @@  static int ef4_pci_probe(struct pci_dev *pci_dev,
 		netif_warn(efx, probe, efx->net_dev,
 			   "failed to create MTDs (%d)\n", rc);
 
-	rc = pci_enable_pcie_error_reporting(pci_dev);
-	if (rc && rc != -EINVAL)
-		netif_notice(efx, probe, efx->net_dev,
-			     "PCIE error reporting unavailable (%d).\n",
-			     rc);
-
 	return 0;
 
  fail4: