[RFC PATCH 0/3 v2] PCI/ASPM: Remove struct aspm_latency

["Saheed O. Bolarinwa" <refactormyself@gmail.com>]

From: "Bolarinwa O. Saheed" <refactormyself@gmail.com>

To validate and set link latency capability, `struct aspm_latency` and
related members defined within `struct pcie_link_state` are used.
However, since there are not many access to theses values, it is possible
to directly access and compute these values.
Doing this will also reduce the dependency on `struct pcie_link_state`.

The series removes `struct aspm_latency` and related members within 
`struct pcie_link_state`. All latencies are now calculated when needed.

Changes in this version:
 - directly access downstream by calling `pci_function_0()` instead of
   used the `struct pcie_link_state`

Saheed O. Bolarinwa (3):
  PCI/ASPM: Remove link latencies cached within struct pcie_link_state
  PCI/ASPM: Remove struct pcie_link_state.acceptable
  PCI/ASPM: Remove struct aspm_latency

 drivers/pci/pcie/aspm.c | 89 ++++++++++++++++++-----------------------
 1 file changed, 38 insertions(+), 51 deletions(-)

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2.20.1