Re: [PATCH][RESEND] input: adp5589: Make keypad support optional

[kbuild test robot <lkp@xxxxxxxxx>]

Hi Alexandru,

I love your patch! Perhaps something to improve:

[auto build test WARNING on input/next]
[cannot apply to v5.4-rc4 next-20191024]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Alexandru-Ardelean/input-adp5589-Make-keypad-support-optional/20191025-034654
base:   https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=mips 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

   drivers/input/keyboard/adp5589-keys.c: In function 'adp5589_probe':
>> drivers/input/keyboard/adp5589-keys.c:1019:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
      kpad->support_row5 = true;
      ~~~~~~~~~~~~~~~~~~~^~~~~~
   drivers/input/keyboard/adp5589-keys.c:1020:2: note: here
     case ADP5585_01:
     ^~~~

vim +1019 drivers/input/keyboard/adp5589-keys.c

   994	
   995	static int adp5589_probe(struct i2c_client *client,
   996				 const struct i2c_device_id *id)
   997	{
   998		struct adp5589_kpad *kpad;
   999		const struct adp5589_kpad_platform_data *pdata =
  1000			dev_get_platdata(&client->dev);
  1001		unsigned int revid;
  1002		int error, ret;
  1003	
  1004		if (!i2c_check_functionality(client->adapter,
  1005					     I2C_FUNC_SMBUS_BYTE_DATA)) {
  1006			dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
  1007			return -EIO;
  1008		}
  1009	
  1010	
  1011		kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
  1012		if (!kpad)
  1013			return -ENOMEM;
  1014	
  1015		kpad->client = client;
  1016	
  1017		switch (id->driver_data) {
  1018		case ADP5585_02:
> 1019			kpad->support_row5 = true;
  1020		case ADP5585_01:
  1021			kpad->is_adp5585 = true;
  1022			kpad->var = &const_adp5585;
  1023			break;
  1024		case ADP5589:
  1025			kpad->support_row5 = true;
  1026			kpad->var = &const_adp5589;
  1027			break;
  1028		}
  1029	
  1030		ret = adp5589_read(client, ADP5589_5_ID);
  1031		if (ret < 0) {
  1032			error = ret;
  1033			goto err_free_mem;
  1034		}
  1035	
  1036		revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
  1037	
  1038		error = adp5589_keypad_add(kpad, revid, pdata);
  1039		if (error)
  1040			goto err_free_mem;
  1041	
  1042		error = adp5589_setup(kpad, pdata);
  1043		if (error)
  1044			goto err_keypad_remove;
  1045	
  1046		if (kpad->gpimapsize)
  1047			adp5589_report_switch_state(kpad);
  1048	
  1049		error = adp5589_gpio_add(kpad, pdata);
  1050		if (error)
  1051			goto err_keypad_remove;
  1052	
  1053		i2c_set_clientdata(client, kpad);
  1054	
  1055		dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
  1056		return 0;
  1057	
  1058	err_keypad_remove:
  1059		adp5589_keypad_remove(kpad, pdata);
  1060	err_free_mem:
  1061		kfree(kpad);
  1062	
  1063		return error;
  1064	}
  1065	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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