re-enable WOL for atheros (alx) driver

alx_wol.md

Use the script from here.

automatic dkms module installer for patched alx

This is a quick and dirty setup that will automatically setup the dkms module for your specific kernel version.
This will only work on debian/ubuntu and other derivates and requires dkms and patch to be setup already.

The setup uses sudo and thus you are asked for your password once.
It will then attempt to download your kernels source, copy and patch the alx related files and place a "alx-" in your /usr/src directory, enable and compile the module and finally rebuild your initrd.
Currently the the very first compilation somehow fails, thats why it's run twice.

The last lines of output should look like this:

...
DKMS: build completed.

alx.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/4.2.0-27-generic/updates/dkms/

depmod....

DKMS: install completed.
update-initramfs: Generating /boot/initrd.img-4.2.0-27-generic

Note: may need to manually run sudo update-initramfs -u if the script doesn't do it.

Possibly not needed anymore?

https://bugzilla.kernel.org/show_bug.cgi?id=61651#c158

I didn't see this mentioned, so I wanted to point out that the Ubuntu kernel has the WoL feature enabled behind a module parameter (off by default). You can run the following to see the value:
cat /sys/module/alx/parameters/enable_wol

'N' = off, 'Y' = on

To turn it on, you just need to add:
options alx enable_wol=Y

to modeprobe. For example, by running:
sudo bash -c 'echo options alx enable_wol=Y > /etc/modprobe.d/alx.conf'

You can then test this by running:
sudo bash -c 'modprobe -r alx && modprobe alx' &&
cat /sys/module/alx/parameters/enable_wol

Finally, to ensure the modprobe config change is present during startup, update your initramfs with:
sudo update-initramfs -u