Hi Kevin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.12-rc5 next-20210329]
[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]

url:    
https://github.com/0day-ci/linux/commits/Kevin-Paul-Herbert/nvmem-Change-to-unified-property-interface/20210330-064121
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
1e43c377a79f9189fea8f2711b399d4e8b4e609b
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # 
https://github.com/0day-ci/linux/commit/edbc7632702cf638265a6d7180bd8c951cda6ad9
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Kevin-Paul-Herbert/nvmem-Change-to-unified-property-interface/20210330-064121
        git checkout edbc7632702cf638265a6d7180bd8c951cda6ad9
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All warnings (new ones prefixed by >>):

   drivers/thermal/sprd_thermal.c: In function 'sprd_thm_cal_read':
   drivers/thermal/sprd_thermal.c:128:9: error: implicit declaration of 
function 'of_nvmem_cell_get'; did you mean 'nvmem_cell_get'? 
[-Werror=implicit-function-declaration]
     128 |  cell = of_nvmem_cell_get(np, cell_id);
         |         ^~~~~~~~~~~~~~~~~
         |         nvmem_cell_get
>> drivers/thermal/sprd_thermal.c:128:7: warning: assignment to 'struct 
>> nvmem_cell *' from 'int' makes pointer from integer without a cast 
>> [-Wint-conversion]
     128 |  cell = of_nvmem_cell_get(np, cell_id);
         |       ^
   cc1: some warnings being treated as errors


vim +128 drivers/thermal/sprd_thermal.c

554fdbaf19b188 Freeman Liu 2020-02-18  120  
554fdbaf19b188 Freeman Liu 2020-02-18  121  static int sprd_thm_cal_read(struct 
device_node *np, const char *cell_id,
554fdbaf19b188 Freeman Liu 2020-02-18  122                           u32 *val)
554fdbaf19b188 Freeman Liu 2020-02-18  123  {
554fdbaf19b188 Freeman Liu 2020-02-18  124      struct nvmem_cell *cell;
554fdbaf19b188 Freeman Liu 2020-02-18  125      void *buf;
554fdbaf19b188 Freeman Liu 2020-02-18  126      size_t len;
554fdbaf19b188 Freeman Liu 2020-02-18  127  
554fdbaf19b188 Freeman Liu 2020-02-18 @128      cell = of_nvmem_cell_get(np, 
cell_id);
554fdbaf19b188 Freeman Liu 2020-02-18  129      if (IS_ERR(cell))
554fdbaf19b188 Freeman Liu 2020-02-18  130              return PTR_ERR(cell);
554fdbaf19b188 Freeman Liu 2020-02-18  131  
554fdbaf19b188 Freeman Liu 2020-02-18  132      buf = nvmem_cell_read(cell, 
&len);
554fdbaf19b188 Freeman Liu 2020-02-18  133      nvmem_cell_put(cell);
554fdbaf19b188 Freeman Liu 2020-02-18  134      if (IS_ERR(buf))
554fdbaf19b188 Freeman Liu 2020-02-18  135              return PTR_ERR(buf);
554fdbaf19b188 Freeman Liu 2020-02-18  136  
554fdbaf19b188 Freeman Liu 2020-02-18  137      if (len > sizeof(u32)) {
554fdbaf19b188 Freeman Liu 2020-02-18  138              kfree(buf);
554fdbaf19b188 Freeman Liu 2020-02-18  139              return -EINVAL;
554fdbaf19b188 Freeman Liu 2020-02-18  140      }
554fdbaf19b188 Freeman Liu 2020-02-18  141  
554fdbaf19b188 Freeman Liu 2020-02-18  142      memcpy(val, buf, len);
554fdbaf19b188 Freeman Liu 2020-02-18  143  
554fdbaf19b188 Freeman Liu 2020-02-18  144      kfree(buf);
554fdbaf19b188 Freeman Liu 2020-02-18  145      return 0;
554fdbaf19b188 Freeman Liu 2020-02-18  146  }
554fdbaf19b188 Freeman Liu 2020-02-18  147  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

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