Re: [PATCH v3] dma-contiguous: setup default numa cma area if not configured explicitly

[kernel test robot <lkp@intel.com>]

Hi Feng,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on linus/master v7.1-rc1 next-20260430]
[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/Feng-Tang/dma-contiguous-setup-default-numa-cma-area-if-not-configured-explicitly/20260430-073422
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20260428060550.7167-1-feng.tang%40linux.alibaba.com
patch subject: [PATCH v3] dma-contiguous: setup default numa cma area if not configured explicitly
config: x86_64-randconfig-r112-20260501 (https://download.01.org/0day-ci/archive/20260501/202605011354.YrrRWXdx-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260501/202605011354.YrrRWXdx-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/202605011354.YrrRWXdx-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> mm/cma.c:57:12: sparse: sparse: function 'cma_get_nid' with external linkage has definition

vim +/cma_get_nid +57 mm/cma.c

    56	
  > 57	extern int cma_get_nid(const struct cma *cma)
    58	{
    59		return cma->nid;
    60	}
    61	

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