Hi - I'm running kernel 4.18.8-odroidc2 under stretch and I've installed

 

  linux-headers-next-odroidc2

  linux-source-4.18.8-next-odroidc2

 

where the kernel image was

 

  linux-image-next-odroidc2

 

The system in general rocks  - I was worried about not being able to use my RTL8812AU in the monitor mode - but it works!

 

But I have 2 issues with 4.18.8-odroidc2, first the RTC PCF8563 module.

 

The .config file includes the following entries

 

  CONFIG_RTC_DRV_PCF85363=m

  # CONFIG_RTC_DRV_PCF8563 is not set

 

The Odroid C2 RTC shield is the one not set, namely, the PCF8563

 

See

 

  https://www.hardkernel.com/shop/rtc-shield/

 

Now if I try to build the loadable module

 

  make ARCH=arm64 scripts

  make ARCH=arm64 distclean

 

the last command generates the following error

 

  scripts/Makefile.clean:15: drivers/gpu/drm/nouveau/Makefile: No such file or director

 

and if I just type

 

 make ARCH=arm64

 

make[1]: *** No rule to make target 'arch/arm64/kernel/vdso/gettimeofday.S', needed by 'arch/arm64/kernel/vdso/gettimeofday.o'.  Stop.

 

So I have to punt. I must be doing something wrong.

 

Any help would be greatly appreciated!

 

-- Cinaed

 

The 4.18.8-odroidc2 kernel builds.

 

And the Makefile for the headers is identical to the Makefile for the kernel - which would explain the problem with not being able to build a loadable object using the headers.