[PATCH 6.1 080/131] dmaengine: ioat: Drop redundant pci_enable_pcie_error_reporting()

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bjorn Helgaas <bhelgaas@google.com>

[ Upstream commit e32622f84ae289dc7a04e9f01cd62cb914fdc5c6 ]

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>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20230307192655.874008-2-helgaas@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Stable-dep-of: 1b11b4ef6bd6 ("dmaengine: ioatdma: Fix leaking on version mismatch")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/ioat/init.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
index 5d707ff635542..6ca62edf47bd7 100644
--- a/drivers/dma/ioat/init.c
+++ b/drivers/dma/ioat/init.c
@@ -15,7 +15,6 @@
 #include <linux/workqueue.h>
 #include <linux/prefetch.h>
 #include <linux/dca.h>
-#include <linux/aer.h>
 #include <linux/sizes.h>
 #include "dma.h"
 #include "registers.h"
@@ -1380,15 +1379,11 @@ static int ioat_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		if (is_skx_ioat(pdev))
 			device->version = IOAT_VER_3_2;
 		err = ioat3_dma_probe(device, ioat_dca_enabled);
-
-		if (device->version >= IOAT_VER_3_3)
-			pci_enable_pcie_error_reporting(pdev);
 	} else
 		return -ENODEV;
 
 	if (err) {
 		dev_err(dev, "Intel(R) I/OAT DMA Engine init failed\n");
-		pci_disable_pcie_error_reporting(pdev);
 		return -ENODEV;
 	}
 
@@ -1411,7 +1406,6 @@ static void ioat_remove(struct pci_dev *pdev)
 		device->dca = NULL;
 	}
 
-	pci_disable_pcie_error_reporting(pdev);
 	ioat_dma_remove(device);
 }
 
-- 
2.43.0