On Thu, 3 Aug 2023 23:01:29 +0000
Smita Koralahalli <Smita.KoralahalliChannabasappa@xxxxxxx> wrote:
> Use pcie_aer_is_native() to determine the native AER ownership as the
> usage of host_bride->native_aer does not cover command line override of
> AER ownership.
>
> Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@xxxxxxx>
> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
> Reviewed-by: Robert Richter <rrichter@xxxxxxx>
I hope there aren't systems getting this wrong but make sense to support
same override as for other cases.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> ---
> v2:
> Replaced pcie_aer_is_native() at a later stage for automated
> backports.
> v3:
> Added more context to commit message.
> Added "Reviewed-by" tag.
> ---
> drivers/cxl/pci.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
> index 2323169b6e5f..44a21ab7add5 100644
> --- a/drivers/cxl/pci.c
> +++ b/drivers/cxl/pci.c
> @@ -529,7 +529,6 @@ static int cxl_pci_setup_regs(struct pci_dev *pdev, enum cxl_regloc_type type,
>
> static int cxl_pci_ras_unmask(struct pci_dev *pdev)
> {
> - struct pci_host_bridge *host_bridge = pci_find_host_bridge(pdev->bus);
> struct cxl_dev_state *cxlds = pci_get_drvdata(pdev);
> void __iomem *addr;
> u32 orig_val, val, mask;
> @@ -542,7 +541,7 @@ static int cxl_pci_ras_unmask(struct pci_dev *pdev)
> }
>
> /* BIOS has PCIe AER error control */
> - if (!host_bridge->native_aer)
> + if (!pcie_aer_is_native(pdev))
> return 0;
>
> rc = pcie_capability_read_word(pdev, PCI_EXP_DEVCTL, &cap);
