Re: [PATCH v12 1/3] lib: Introduce hierarchical per-cpu counters
From: kernel test robot
Date: Sun Jan 11 2026 - 13:36:59 EST
Hi Mathieu,
kernel test robot noticed the following build errors:
[auto build test ERROR on next-20260109]
[cannot apply to akpm-mm/mm-everything kees/for-next/execve tip/sched/core linus/master v6.19-rc4 v6.19-rc3 v6.19-rc2 v6.19-rc4]
[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/Mathieu-Desnoyers/lib-Introduce-hierarchical-per-cpu-counters/20260111-231206
base: next-20260109
patch link: https://lore.kernel.org/r/20260111150249.1222944-2-mathieu.desnoyers%40efficios.com
patch subject: [PATCH v12 1/3] lib: Introduce hierarchical per-cpu counters
config: x86_64-randconfig-161-20260112 (https://download.01.org/0day-ci/archive/20260112/202601120245.v2Trbgck-lkp@xxxxxxxxx/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
smatch version: v0.5.0-8985-g2614ff1a
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260112/202601120245.v2Trbgck-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/202601120245.v2Trbgck-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
In file included from init/main.c:107:
>> include/linux/percpu_counter_tree.h:230:13: error: incompatible pointer types passing 'atomic_long_t *' (aka 'atomic64_t *') to parameter of type 'atomic_t *' [-Werror,-Wincompatible-pointer-types]
230 | atomic_set(&counter->count, v);
| ^~~~~~~~~~~~~~~
include/linux/atomic/atomic-instrumented.h:65:22: note: passing argument to parameter 'v' here
65 | atomic_set(atomic_t *v, int i)
| ^
1 error generated.
vim +230 include/linux/percpu_counter_tree.h
226
227 static inline
228 void percpu_counter_tree_set(struct percpu_counter_tree *counter, long v)
229 {
> 230 atomic_set(&counter->count, v);
231 }
232
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