Intel I225-IT Ethernet controller is not working during driver probe function

[Ong Ee Lim]

After installing Ubuntu 20.04.3 (Kernel 5.11.0-38-generic) on PXIe controller with I225-IT Ethernet Controller, running dmesg message output the following error thrown by igc driver module:
[ 0.882371] igc: probe of 0000:6d:00.0 failed with error -2
[ 0.914344] igc: probe of 0000:6e:00.0 failed with error -2

After sending inquiry to Intel, they stated that while kernel 5.15 is the official kernel containing igc driver module to support I225-IT Ethernet Controller, for any official Linux kernel between 5.8 to 5.14, manually adding these 2 patches will address the bug.
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7c496de538eebd8212dc2a3c9a468386b264d0d4
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=47bca7de6a4fb8dcb564c7ca14d885c91ed19e03

I would like to request for backporting these 2 patches into the official Ubuntu 20.04.3 (and later) kernel.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1952606

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Ong Ee Lim (eelimong)]

Noticed that the bug has been resolved in kernel 5.11.0-41-generic