Hi Shihlun,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on linux/master v5.9]
[cannot apply to lee-mfd/for-mfd-next next-20201013]
[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/Shihlun-Lin/mfd-ahc1ec0-Add-support-for-Advantech-embedded-controller/20201014-164627
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b5fc7a89e58bcc059a3d5e4db79c481fb437de59
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/ac7622765e9bf99891a911be7a47e27b5afe3a35
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Shihlun-Lin/mfd-ahc1ec0-Add-support-for-Advantech-embedded-controller/20201014-164627
        git checkout ac7622765e9bf99891a911be7a47e27b5afe3a35
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> drivers/mfd/ahc1ec0-hwmon.c:1280:6: warning: no previous prototype for 'adv_ec_init_hwmon_profile' [-Wmissing-prototypes]
    1280 | void adv_ec_init_hwmon_profile(u32 profile, struct adv_ec_platform_data *plat_data)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~

vim +/adv_ec_init_hwmon_profile +1280 drivers/mfd/ahc1ec0-hwmon.c

  1279	
> 1280	void adv_ec_init_hwmon_profile(u32 profile, struct adv_ec_platform_data *plat_data)
  1281	{
  1282		int i;
  1283		struct HW_PIN_TBL *ptbl = &lmsensor_data.pin_tbl;
  1284		struct Dynamic_Tab *dym_tbl = plat_data->dym_tbl;
  1285	
  1286		lmsensor_data.bios_product_name = plat_data->bios_product_name;
  1287		lmsensor_data.profile = &advec_profile[profile];
  1288	
  1289		for (i = 0; i < EC_MAX_TBL_NUM ; i++) {
  1290			switch (dym_tbl[i].DeviceID) {
  1291			case EC_DID_CMOSBAT:
  1292				ptbl->vbat[0] = dym_tbl[i].HWPinNumber;
  1293				ptbl->vbat[1] = 1;
  1294				break;
  1295			case EC_DID_CMOSBAT_X2:
  1296				ptbl->vbat[0] = dym_tbl[i].HWPinNumber;
  1297				ptbl->vbat[1] = 2;
  1298				break;
  1299			case EC_DID_CMOSBAT_X10:
  1300				ptbl->vbat[0] = dym_tbl[i].HWPinNumber;
  1301				ptbl->vbat[1] = 10;
  1302				break;
  1303			case EC_DID_5VS0:
  1304			case EC_DID_5VS5:
  1305				ptbl->v5[0] = dym_tbl[i].HWPinNumber;
  1306				ptbl->v5[1] = 1;
  1307				break;
  1308			case EC_DID_5VS0_X2:
  1309			case EC_DID_5VS5_X2:
  1310				ptbl->v5[0] = dym_tbl[i].HWPinNumber;
  1311				ptbl->v5[1] = 2;
  1312				break;
  1313			case EC_DID_5VS0_X10:
  1314			case EC_DID_5VS5_X10:
  1315				ptbl->v5[0] = dym_tbl[i].HWPinNumber;
  1316				ptbl->v5[1] = 10;
  1317				break;
  1318			case EC_DID_12VS0:
  1319				ptbl->v12[0] = dym_tbl[i].HWPinNumber;
  1320				ptbl->v12[1] = 1;
  1321				break;
  1322			case EC_DID_12VS0_X2:
  1323				ptbl->v12[0] = dym_tbl[i].HWPinNumber;
  1324				ptbl->v12[1] = 2;
  1325				break;
  1326			case EC_DID_12VS0_X10:
  1327				ptbl->v12[0] = dym_tbl[i].HWPinNumber;
  1328				ptbl->v12[1] = 10;
  1329				break;
  1330			case EC_DID_VCOREA:
  1331			case EC_DID_VCOREB:
  1332				ptbl->vcore[0] = dym_tbl[i].HWPinNumber;
  1333				ptbl->vcore[1] = 1;
  1334				break;
  1335			case EC_DID_VCOREA_X2:
  1336			case EC_DID_VCOREB_X2:
  1337				ptbl->vcore[0] = dym_tbl[i].HWPinNumber;
  1338				ptbl->vcore[1] = 2;
  1339				break;
  1340			case EC_DID_VCOREA_X10:
  1341			case EC_DID_VCOREB_X10:
  1342				ptbl->vcore[0] = dym_tbl[i].HWPinNumber;
  1343				ptbl->vcore[1] = 10;
  1344				break;
  1345			case EC_DID_DC:
  1346				ptbl->vdc[0] = dym_tbl[i].HWPinNumber;
  1347				ptbl->vdc[1] = 1;
  1348				break;
  1349			case EC_DID_DC_X2:
  1350				ptbl->vdc[0] = dym_tbl[i].HWPinNumber;
  1351				ptbl->vdc[1] = 2;
  1352				break;
  1353			case EC_DID_DC_X10:
  1354				ptbl->vdc[0] = dym_tbl[i].HWPinNumber;
  1355				ptbl->vdc[1] = 10;
  1356				break;
  1357			case EC_DID_CURRENT:
  1358				ptbl->ec_current[0] = dym_tbl[i].HWPinNumber;
  1359				ptbl->ec_current[1] = 1;
  1360				break;
  1361			case EC_DID_SMBOEM0:
  1362				lmsensor_data.ec_smboem0.HWPinNumber = dym_tbl[i].HWPinNumber;
  1363				break;
  1364			default:
  1365				break;
  1366			}
  1367		}
  1368	}
  1369	

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