linux-kernel - [PATCH 16/28] sfc: falcon: Drop redundant pci_enable_pcie_error

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Message-Id: <20230307181940.868828-17-helgaas@kernel.org>
Date:   Tue,  7 Mar 2023 12:19:27 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Edward Cree <ecree.xilinx@...il.com>,
        Martin Habets <habetsm.xilinx@...il.com>
Subject: [PATCH 16/28] sfc: falcon: Drop redundant pci_enable_pcie_error_reporting()

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, 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@...gle.com>
Cc: Edward Cree <ecree.xilinx@...il.com>
Cc: Martin Habets <habetsm.xilinx@...il.com>
---
 drivers/net/ethernet/sfc/falcon/efx.c | 9 ---------
 1 file changed, 9 deletions(-)

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:
-- 
2.25.1