Re: [hwmon:watchdog-next 21/22] drivers//watchdog/rza_wdt.c:197:14: warning: cast from pointer to integer of different size

[Guenter Roeck]

Chris,

On 09/23/2018 08:16 AM, kbuild test robot wrote:

tree:   
https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git 
watchdog-next
head:   419c9ad9c6d4f211ee83d49e2ce6a876cbb1800f
commit: c24a7cc9df8f17f0726daf9efc6aa290972009e9 [21/22] watchdog: rza_wdt: 
Support longer timeouts
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-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
         git checkout c24a7cc9df8f17f0726daf9efc6aa290972009e9
         # save the attached .config to linux build tree
         GCC_VERSION=7.2.0 make.cross ARCH=sparc64

All warnings (new ones prefixed by >>):

    drivers//watchdog/rza_wdt.c: In function 'rza_wdt_probe':

drivers//watchdog/rza_wdt.c:197:14: warning: cast from pointer to integer of 
different size [-Wpointer-to-int-cast]

      priv->cks = (unsigned int)of_device_get_match_data(&pdev->dev);
                  ^

vim +197 drivers//watchdog/rza_wdt.c

    166 
    167 static int rza_wdt_probe(struct platform_device *pdev)
    168 {
    169         struct rza_wdt *priv;
    170         struct resource *res;
    171         unsigned long rate;
    172         int ret;
    173 
    174         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
    175         if (!priv)
    176                 return -ENOMEM;
    177 
    178         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
    179         priv->base = devm_ioremap_resource(&pdev->dev, res);
    180         if (IS_ERR(priv->base))
    181                 return PTR_ERR(priv->base);
    182 
    183         priv->clk = devm_clk_get(&pdev->dev, NULL);
    184         if (IS_ERR(priv->clk))
    185                 return PTR_ERR(priv->clk);
    186 
    187         rate = clk_get_rate(priv->clk);
    188         if (rate < 16384) {
    189                 dev_err(&pdev->dev, "invalid clock rate (%ld)\n", rate);
    190                 return -ENOENT;
    191         }
    192 
    193         priv->wdev.info = &rza_wdt_ident,
    194         priv->wdev.ops = &rza_wdt_ops,
    195         priv->wdev.parent = &pdev->dev;
    196 
  > 197              priv->cks = (unsigned 
int)of_device_get_match_data(&pdev->dev);

Please resubmit with this fixed. Something like
                        priv->cks = (unsigned 
int)(uintptr_t)of_device_get_match_data(&pdev->dev);
should do it.

Thanks,
Guenter