Re: [PATCH v2] pci/aspm: Remove CONFIG_PCIEASPM_DEBUG

[Sinan Kaya]

On 7/27/2018 1:26 PM, Bjorn Helgaas wrote:
> - A link can lead to a multi-function device, and the spec allows
>      those functions to have different ASPM settings (see PCIe r4.0,
>      sec 5.4.1).  With the sysfs files at the upstream end of the link,
>      we have no way to configure those functions individually.

Even though we can set them individually, there is only one PCIe link
for single function as well as multi-function devices.

It would be a user mistake to allow individual PCIe functions with
different ASPM policies. (maybe, we should enforce it if we are not
doing it already).