This is a note to let you know that I've just added the patch titled
dmaengine: ioat: Drop redundant pci_enable_pcie_error_reporting()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dmaengine-ioat-drop-redundant-pci_enable_pcie_error_.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4dfba9c751e2ef70fa867f60019c4e475eb84a37
Author: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Date: Tue Mar 7 13:26:54 2023 -0600
dmaengine: ioat: Drop redundant pci_enable_pcie_error_reporting()
[ 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@xxxxxxxxxx>
Acked-by: Dave Jiang <dave.jiang@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230307192655.874008-2-helgaas@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Stable-dep-of: 1b11b4ef6bd6 ("dmaengine: ioatdma: Fix leaking on version mismatch")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
index 373b8dac6c9ba..783d4e740f115 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"
@@ -1382,15 +1381,11 @@ 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;
}
@@ -1413,7 +1408,6 @@ static void ioat_remove(struct pci_dev *pdev)
device->dca = NULL;
}
- pci_disable_pcie_error_reporting(pdev);
ioat_dma_remove(device);
}
