Hi Andrey,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.16-rc6 next-20180322]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improve the system]

url:    
https://github.com/0day-ci/linux/commits/Andrey-Smirnov/dt-bindings-nvmem-Add-binding-for-RAVE-SP-EEPROM-driver/20180323-130858
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
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
        make.cross ARCH=sh 

Note: the 
linux-review/Andrey-Smirnov/dt-bindings-nvmem-Add-binding-for-RAVE-SP-EEPROM-driver/20180323-130858
 HEAD c74df185f384be5ad59649d893da92e2df54b967 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   drivers/nvmem/rave-sp-eeprom.c: In function 'rave_sp_eeprom_probe':
>> drivers/nvmem/rave-sp-eeprom.c:315:13: error: 'SZ_8K' undeclared (first use 
>> in this function)
     if (size > SZ_8K)
                ^~~~~
   drivers/nvmem/rave-sp-eeprom.c:315:13: note: each undeclared identifier is 
reported only once for each function it appears in
   drivers/nvmem/rave-sp-eeprom.c:332:10: error: implicit declaration of 
function 'devm_nvmem_register'; did you mean 'nvmem_register'? 
[-Werror=implicit-function-declaration]
     nvmem = devm_nvmem_register(dev, &config);
             ^~~~~~~~~~~~~~~~~~~
             nvmem_register
   drivers/nvmem/rave-sp-eeprom.c:332:8: warning: assignment makes pointer from 
integer without a cast [-Wint-conversion]
     nvmem = devm_nvmem_register(dev, &config);
           ^
   cc1: some warnings being treated as errors

vim +/SZ_8K +315 drivers/nvmem/rave-sp-eeprom.c

   281  
   282  static int rave_sp_eeprom_probe(struct platform_device *pdev)
   283  {
   284          struct device *dev = &pdev->dev;
   285          struct rave_sp *sp = dev_get_drvdata(dev->parent);
   286          struct device_node *np = dev->of_node;
   287          struct nvmem_config config = { 0 };
   288          struct rave_sp_eeprom *eeprom;
   289          struct nvmem_device *nvmem;
   290          u32 reg[2], size;
   291  
   292          if (of_property_read_u32_array(np, "reg", reg, 
ARRAY_SIZE(reg))) {
   293                  dev_err(dev, "Failed to parse \"reg\" property\n");
   294                  return -EINVAL;
   295          }
   296  
   297          size = reg[1];
   298          /*
   299           * Per ICD, we have no more than 2 bytes to specify EEPROM
   300           * page.
   301           */
   302          if (size > U16_MAX * RAVE_SP_EEPROM_PAGE_SIZE) {
   303                  dev_err(dev, "Specified size is too big\n");
   304                  return -EINVAL;
   305          }
   306  
   307          eeprom = devm_kzalloc(dev, sizeof(*eeprom), GFP_KERNEL);
   308          if (!eeprom)
   309                  return -ENOMEM;
   310  
   311          eeprom->address = reg[0];
   312          eeprom->sp      = sp;
   313          eeprom->dev     = dev;
   314  
 > 315          if (size > SZ_8K)
   316                  eeprom->header_size = RAVE_SP_EEPROM_HEADER_BIG;
   317          else
   318                  eeprom->header_size = RAVE_SP_EEPROM_HEADER_SMALL;
   319  
   320          mutex_init(&eeprom->mutex);
   321  
   322          config.id               = -1;
   323          config.name             = dev->of_node->name;
   324          config.priv             = eeprom;
   325          config.dev              = dev;
   326          config.size             = size;
   327          config.reg_read         = rave_sp_eeprom_reg_read;
   328          config.reg_write        = rave_sp_eeprom_reg_write;
   329          config.word_size        = 1;
   330          config.stride           = 1;
   331  
   332          nvmem = devm_nvmem_register(dev, &config);
   333  
   334          return PTR_ERR_OR_ZERO(nvmem);
   335  }
   336  

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

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