NACK/Cmnt: [SRU] [J/L/Unstable] [PATCH 0/1] Fix unreliable ethernet cable detection on I219 NIC

Stefan Bader stefan.bader at
Wed Jul 19 07:43:32 UTC 2023

On 19.07.23 07:58, Kai-Heng Feng wrote:
> BugLink:
> [Impact]
> Hotplugging RJ45 ethernet cable only works for one time because ACPI GPE
> wake doesn't working properly anymore.
> [Fix]
> Always use PME poll to read PCI PME to know if there's wake event.
> [Test]
> With the patch applied, ethernet cable can always be detected.
> [Where problems could occur]
> PME poll mechanism periodically reads the PMCTRL register, so the power
> consumption can be slightly higher. The increase will be very low,
> probably won't be noticeable.
> Kai-Heng Feng (1):
>    UBUNTU: SAUCE: e1000e: Use PME poll to circumvent unreliable ACPI wake
>   drivers/net/ethernet/intel/e1000e/netdev.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)

Rejected for the following reasons:
I do not see sufficient reason to deviate from the SRU policy (that a 
patch has to be upstream) here.

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