Re: [PATCH v2 3/3] mm: add WQ_PERCPU to alloc_workqueue users

From: kernel test robot

Date: Tue Jan 13 2026 - 21:26:05 EST


Hi Marco,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master v6.19-rc5 next-20260113]
[cannot apply to vbabka-slab/for-next]
[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/Marco-Crivellari/mm-Replace-use-of-system_unbound_wq-with-system_dfl_wq/20260113-195017
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20260113114630.152942-4-marco.crivellari%40suse.com
patch subject: [PATCH v2 3/3] mm: add WQ_PERCPU to alloc_workqueue users
config: riscv-randconfig-002-20260114 (https://download.01.org/0day-ci/archive/20260114/202601141042.qJuTeEP0-lkp@xxxxxxxxx/config)
compiler: riscv64-linux-gcc (GCC) 9.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260114/202601141042.qJuTeEP0-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/202601141042.qJuTeEP0-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> mm/slub.c:8545: error: unterminated #ifndef
8545 | #ifndef CONFIG_SLUB_TINY
|


vim +8545 mm/slub.c

8542
8543 void __init kmem_cache_init_late(void)
8544 {
> 8545 #ifndef CONFIG_SLUB_TINY
8546 flushwq = alloc_workqueue("slub_flushwq", WQ_MEM_RECLAIM | WQ_PERCPU,
8547 0);
8548 WARN_ON(!flushwq);
8549 }
8550

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