linux-kernel - [PATCH 08/10] scsi: mpt3sas: Drop redundant pci_enable_pcie_error

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Message-Id: <20230307182842.870378-9-helgaas@kernel.org>
Date:   Tue,  7 Mar 2023 12:28:40 -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>,
        Sathya Prakash <sathya.prakash@...adcom.com>,
        Sreekanth Reddy <sreekanth.reddy@...adcom.com>,
        Suganath Prabu Subramani 
        <suganath-prabu.subramani@...adcom.com>,
        MPT-FusionLinux.pdl@...adcom.com
Subject: [PATCH 08/10] scsi: mpt3sas: 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: Sathya Prakash <sathya.prakash@...adcom.com>
Cc: Sreekanth Reddy <sreekanth.reddy@...adcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@...adcom.com>
Cc: MPT-FusionLinux.pdl@...adcom.com
---
 drivers/scsi/mpt3sas/mpt3sas_base.c  | 5 -----
 drivers/scsi/mpt3sas/mpt3sas_scsih.c | 1 -
 2 files changed, 6 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 2ee9ea57554d..a8b260f46796 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -60,7 +60,6 @@
 #include <linux/ktime.h>
 #include <linux/kthread.h>
 #include <asm/page.h>        /* To get host page size per arch */
-#include <linux/aer.h>
 
 
 #include "mpt3sas_base.h"
@@ -3535,7 +3534,6 @@ mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
 
 	if (pci_is_enabled(pdev)) {
 		pci_release_selected_regions(ioc->pdev, ioc->bars);
-		pci_disable_pcie_error_reporting(pdev);
 		pci_disable_device(pdev);
 	}
 }
@@ -3615,9 +3613,6 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
 		goto out_fail;
 	}
 
-/* AER (Advanced Error Reporting) hooks */
-	pci_enable_pcie_error_reporting(pdev);
-
 	pci_set_master(pdev);
 
 
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 8e24ebcebfe5..e2f09833659f 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -52,7 +52,6 @@
 #include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
-#include <linux/aer.h>
 #include <linux/raid_class.h>
 #include <linux/blk-mq-pci.h>
 #include <asm/unaligned.h>
-- 
2.25.1