Re: [PATCH 8/8] memcg: rename mem_cgroup_ino() to mem_cgroup_id()

[SeongJae Park]

On Fri, 26 Dec 2025 20:31:38 +0800 kernel test robot <lkp@xxxxxxxxx> wrote:

> Hi Shakeel,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on sj/damon/next]
> [cannot apply to akpm-mm/mm-everything tj-cgroup/for-next linus/master v6.19-rc2 next-20251219]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Shakeel-Butt/memcg-introduce-private-id-API-for-in-kernel-users/20251226-072954
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/sj/linux.git damon/next

damon/next tree contains some debugging-purpose only changes that not aim to be
upstreamed.

> patch link:    https://lore.kernel.org/r/20251225232116.294540-9-shakeel.butt%40linux.dev
> patch subject: [PATCH 8/8] memcg: rename mem_cgroup_ino() to mem_cgroup_id()
> config: arm64-randconfig-001-20251226 (https://download.01.org/0day-ci/archive/20251226/202512262045.CkWwCNp7-lkp@xxxxxxxxx/config)
> compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251226/202512262045.CkWwCNp7-lkp@xxxxxxxxx/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@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202512262045.CkWwCNp7-lkp@xxxxxxxxx/
> 
> All warnings (new ones prefixed by >>):
> 
> >> mm/damon/sysfs.c:2704:33: warning: format specifies type 'unsigned int' but the argument has type 'u64' (aka 'unsigned long long') [-Wformat]
>     2704 |                 pr_info("id: %u, path: %s\n", mem_cgroup_id(memcg), path);
>          |                              ~~               ^~~~~~~~~~~~~~~~~~~~
>          |                              %llu

And this issue happens due to a damon/next chage that made for only debugging
and thus not aiming to be upstreamed.  Hence, no action from Shakeel is needed.

I will resolve this issue after this patch is added to damon/next.


Thanks,
SJ

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