On 1/23/2026 11:45 PM, Shuai Xue wrote:
> The DPC driver clears AER fatal status for the port that reported the
> error, but not for the downstream device that deteced the error. The
> current recovery code only clears non-fatal AER status, leaving fatal
> status bits set in the error device.
>
> Use pci_aer_raw_clear_status() to clear both fatal and non-fatal error
> status in the error device, ensuring all AER status bits are properly
> cleared after recovery.
>
> Fixes: aa344bc8b727 ("PCI/ERR: Clear AER status only when we control AER")
> Cc: [email protected]
> Signed-off-by: Shuai Xue <[email protected]>
> ---
Reviewed-by: Kuppuswamy Sathyanarayanan
<[email protected]>
> drivers/pci/pcie/err.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c
> index 0780ea09478b..5e463efc3d05 100644
> --- a/drivers/pci/pcie/err.c
> +++ b/drivers/pci/pcie/err.c
> @@ -285,7 +285,7 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
> */
> if (host->native_aer || pcie_ports_native) {
> pcie_clear_device_status(dev);
> - pci_aer_clear_nonfatal_status(dev);
> + pci_aer_raw_clear_status(dev);
> }
>
> pci_walk_bridge(bridge, pci_pm_runtime_put, NULL);
--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer
