linux-kernel - [PATCH 04/10] scsi: bfa: Drop redundant pci_enable_pcie_error

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Message-Id: <20230307182842.870378-5-helgaas@kernel.org>
Date:   Tue,  7 Mar 2023 12:28:36 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Anil Gurumurthy <anil.gurumurthy@...gic.com>,
        Sudarsana Kalluru <sudarsana.kalluru@...gic.com>
Subject: [PATCH 04/10] scsi: bfa: 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: Anil Gurumurthy <anil.gurumurthy@...gic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@...gic.com>
---
 drivers/scsi/bfa/bfad.c     | 6 ------
 drivers/scsi/bfa/bfad_drv.h | 1 -
 2 files changed, 7 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index e5aa982ffedc..529b73a83d69 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -738,9 +738,6 @@ bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 		goto out_release_region;
 	}
 
-	/* Enable PCIE Advanced Error Recovery (AER) if kernel supports */
-	pci_enable_pcie_error_reporting(pdev);
-
 	bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
 	bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
 
@@ -801,8 +798,6 @@ bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
 	pci_iounmap(pdev, bfad->pci_bar0_kva);
 	pci_iounmap(pdev, bfad->pci_bar2_kva);
 	pci_release_regions(pdev);
-	/* Disable PCIE Advanced Error Recovery (AER) */
-	pci_disable_pcie_error_reporting(pdev);
 	pci_disable_device(pdev);
 }
 
@@ -1562,7 +1557,6 @@ bfad_pci_slot_reset(struct pci_dev *pdev)
 	if (restart_bfa(bfad) == -1)
 		goto out_disable_device;
 
-	pci_enable_pcie_error_reporting(pdev);
 	dev_printk(KERN_WARNING, &pdev->dev,
 		   "slot_reset completed  flags: 0x%x!\n", bfad->bfad_flags);
 
diff --git a/drivers/scsi/bfa/bfad_drv.h b/drivers/scsi/bfa/bfad_drv.h
index eaee7c8bc2d2..7682cfa34265 100644
--- a/drivers/scsi/bfa/bfad_drv.h
+++ b/drivers/scsi/bfa/bfad_drv.h
@@ -30,7 +30,6 @@
 #include <linux/vmalloc.h>
 #include <linux/workqueue.h>
 #include <linux/bitops.h>
-#include <linux/aer.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_tcq.h>
-- 
2.25.1