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SubjectRe: [PATCH v11 16/16] PCI/AER: Add RCEC AER error injection support
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On 11/17/20 11:19 AM, Sean V Kelley wrote:
> From: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
>
> Root Complex Event Collectors (RCEC) appear as peers to Root Ports and may
> also have the AER capability.
>
> Add RCEC support to the AER error injection driver.
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
>
> Co-developed-by: Sean V Kelley <sean.v.kelley@intel.com>
> Link: https://lore.kernel.org/r/20201002184735.1229220-15-seanvk.dev@oregontracks.org
> Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
> Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---
> drivers/pci/pcie/aer_inject.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pci/pcie/aer_inject.c b/drivers/pci/pcie/aer_inject.c
> index c2cbf425afc5..767f8859b99b 100644
> --- a/drivers/pci/pcie/aer_inject.c
> +++ b/drivers/pci/pcie/aer_inject.c
> @@ -333,8 +333,11 @@ static int aer_inject(struct aer_error_inj *einj)
> if (!dev)
> return -ENODEV;
> rpdev = pcie_find_root_port(dev);
> + /* If Root Port not found, try to find an RCEC */
> + if (!rpdev)
> + rpdev = dev->rcec;
> if (!rpdev) {
> - pci_err(dev, "Root port not found\n");
> + pci_err(dev, "Neither Root Port nor RCEC found\n");
> ret = -ENODEV;
> goto out_put;
> }
>

--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer

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