Re: [peterz-queue:sched/core 6/8] kernel/sched/fair.c:9199:30: error: implicit declaration of function 'adjust_numa_imbalance'

[Peter Zijlstra <peterz@infradead.org>]

On Thu, May 19, 2022 at 09:55:17AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/core
> head:   45ff65aa1bfd4826331c9c4daafdca21ef8f79f8
> commit: c81394419b54c2df2644a34892a6d6434fd922b3 [6/8] sched/numa: Apply imbalance limitations consistently
> config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20220519/202205190911.n5iX1ftB-lkp@intel.com/config)
> compiler: arceb-elf-gcc (GCC) 11.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=c81394419b54c2df2644a34892a6d6434fd922b3
>         git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
>         git fetch --no-tags peterz-queue sched/core
>         git checkout c81394419b54c2df2644a34892a6d6434fd922b3
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>    kernel/sched/fair.c: In function 'find_idlest_group':
> >> kernel/sched/fair.c:9199:30: error: implicit declaration of function 'adjust_numa_imbalance' [-Werror=implicit-function-declaration]
>     9199 |                         if (!adjust_numa_imbalance(imbalance,
>          |                              ^~~~~~~~~~~~~~~~~~~~~
>    cc1: some warnings being treated as errors

Clearly I can't type much...  I'll just wait for v2 or so.