5.15-stable review patch. If anyone has any objections, please let me know.
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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 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); }