I also believe this change has caused 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874464/
ASPM must be disabled completely to avoid network malfunction issue.Even ubuntu 
21.04 with kernel 5.11 sees this issue.Any one from Ubuntu is seeing this bug.
pls change the following code:
from rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L1_1);
to   rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
                                          PCIE_LINK_STATE_L1);

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https://bugs.launchpad.net/bugs/1836030

Title:
  enable realtek ethernet device ASPM function

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