[alibaba-cloud:linux-next 6028/9999] mm/huge_memory.c:2854:13: warning: unused variable 'nid'

[alibaba-cloud:linux-next 6028/9999] mm/huge_memory.c:2854:13: warning: unused variable 'nid'

[kernel test robot]

tree:   https://github.com/alibaba/cloud-kernel.git linux-next
head:   d121e0c25d1a19485d7f293b67901462bb1a6552
commit: e6ca020bc338ccebde78046d05e232093c57be8a [6028/9999] alinux: mm: thp: move deferred split queue to memcg's nodeinfo
config: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20230322/202303220038.GSxzsThi-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/alibaba/cloud-kernel/commit/e6ca020bc338ccebde78046d05e232093c57be8a
        git remote add alibaba-cloud https://github.com/alibaba/cloud-kernel.git
        git fetch --no-tags alibaba-cloud linux-next
        git checkout e6ca020bc338ccebde78046d05e232093c57be8a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303220038.GSxzsThi-lkp@intel.com/

All warnings (new ones prefixed by >>):

   mm/huge_memory.c:527:15: warning: no previous prototype for '__thp_get_unmapped_area' [-Wmissing-prototypes]
     527 | unsigned long __thp_get_unmapped_area(struct file *filp, unsigned long len,
         |               ^~~~~~~~~~~~~~~~~~~~~~~
   mm/huge_memory.c: In function 'split_huge_page_to_list':
   mm/huge_memory.c:2662:29: warning: unused variable 'pgdata' [-Wunused-variable]
    2662 |         struct pglist_data *pgdata = NODE_DATA(page_to_nid(head));
         |                             ^~~~~~
   mm/huge_memory.c: In function 'deferred_split_count':
>> mm/huge_memory.c:2854:13: warning: unused variable 'nid' [-Wunused-variable]
    2854 |         int nid = sc->nid;
         |             ^~~
   mm/huge_memory.c: In function 'deferred_split_scan':
   mm/huge_memory.c:2868:13: warning: unused variable 'nid' [-Wunused-variable]
    2868 |         int nid = sc->nid;
         |             ^~~


vim +/nid +2854 mm/huge_memory.c

  2850	
  2851	static unsigned long deferred_split_count(struct shrinker *shrink,
  2852			struct shrink_control *sc)
  2853	{
> 2854		int nid = sc->nid;
  2855		struct pglist_data *pgdata = NODE_DATA(nid);
  2856		struct deferred_split *ds_queue = &pgdata->deferred_split_queue;
  2857	

-- 
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https://github.com/intel/lkp-tests