Re: [sj:damon/next 130/142] samples/damon/mtier.c:78:30: warning: unused variable 'region'

[SeongJae Park <sj@kernel.org>]

On Tue, 17 Feb 2026 15:33:25 +0800 kernel test robot <lkp@intel.com> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/sj/linux.git damon/next
> head:   53a936b437ade97f957569534f1460d23883b94f
> commit: 52639cde20a9887c5df4acc55fb51a4f48a1644d [130/142] samples/damon/mtier: replace damon_add_region() with damon_set_regions()
> config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20260217/202602171530.NsLdPVOF-lkp@intel.com/config)
> compiler: m68k-linux-gcc (GCC) 15.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260217/202602171530.NsLdPVOF-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202602171530.NsLdPVOF-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
>    samples/damon/mtier.c: In function 'damon_sample_mtier_build_ctx':
> >> samples/damon/mtier.c:78:30: warning: unused variable 'region' [-Wunused-variable]
>       78 |         struct damon_region *region;
>          |                              ^~~~~~

Thank you for this report!  I just added a fix for this to my tree.


Thanks,
SJ

[...]