[nomadik:gemini-dir-685-tve200 31/31] drivers/gpu//drm/panel/panel-ilitek-ili9322.c:230:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}'

[nomadik:gemini-dir-685-tve200 31/31] drivers/gpu//drm/panel/panel-ilitek-ili9322.c:230:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}'

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git gemini-dir-685-tve200
head:   454df5dcbcb83585bb77898eea3a0afa6288e441
commit: 454df5dcbcb83585bb77898eea3a0afa6288e441 [31/31] stab
config: sparc64-allyesconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 454df5dcbcb83585bb77898eea3a0afa6288e441
        # save the attached .config to linux build tree
        make.cross ARCH=sparc64 

All warnings (new ones prefixed by >>):

   In file included from include/linux/cdev.h:7:0,
                    from include/drm/drmP.h:36,
                    from drivers/gpu//drm/panel/panel-ilitek-ili9322.c:20:
   drivers/gpu//drm/panel/panel-ilitek-ili9322.c: In function 'ili9322_regmap_spi_read':
>> drivers/gpu//drm/panel/panel-ilitek-ili9322.c:230:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}' [-Wformat=]
     dev_info(dev, "READ: %02x reg size = %d, val size = %d\n",
                   ^
   include/linux/device.h:1317:51: note: in definition of macro 'dev_info'
    #define dev_info(dev, fmt, arg...) _dev_info(dev, fmt, ##arg)
                                                      ^~~
   drivers/gpu//drm/panel/panel-ilitek-ili9322.c:230:16: warning: format '%d' expects argument of type 'int', but argument 5 has type 'size_t {aka long unsigned int}' [-Wformat=]
     dev_info(dev, "READ: %02x reg size = %d, val size = %d\n",
                   ^
   include/linux/device.h:1317:51: note: in definition of macro 'dev_info'
    #define dev_info(dev, fmt, arg...) _dev_info(dev, fmt, ##arg)
                                                      ^~~

vim +230 drivers/gpu//drm/panel/panel-ilitek-ili9322.c

   214		memcpy(buf, data, 2);
   215		buf[0] &= ~0x80;
   216	
   217		dev_info(dev, "WRITE: %02x %02x\n", buf[0], buf[1]);
   218		return spi_write_then_read(spi, buf, 2, NULL, 0);
   219	}
   220	
   221	static int ili9322_regmap_spi_read(void *context, const void *reg,
   222					   size_t reg_size, void *val, size_t val_size)
   223	{
   224		struct device *dev = context;
   225		struct spi_device *spi = to_spi_device(dev);
   226		u8 buf[1];
   227	
   228		/* Set bit 7 to 1 to read */
   229		memcpy(buf, reg, 1);
 > 230		dev_info(dev, "READ: %02x reg size = %d, val size = %d\n",
   231			 buf[0], reg_size, val_size);
   232		buf[0] |= 0x80;
   233	
   234		return spi_write_then_read(spi, buf, 1, val, 1);
   235	}
   236	
   237	static struct regmap_bus ili9322_regmap_bus = {
   238		.write = ili9322_regmap_spi_write,

---
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[nomadik:gemini-dir-685-tve200 31/31] drivers/gpu//drm/panel/panel-ilitek-ili9322.c:230:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}'

[Arnd Bergmann]

On Tue, Jun 13, 2017 at 3:48 AM, kbuild test robot
<fengguang.wu@intel.com> wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git gemini-dir-685-tve200
> head:   454df5dcbcb83585bb77898eea3a0afa6288e441
> commit: 454df5dcbcb83585bb77898eea3a0afa6288e441 [31/31] stab
> config: sparc64-allyesconfig (attached as .config)
> compiler: sparc64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
> reproduce:
>         wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout 454df5dcbcb83585bb77898eea3a0afa6288e441
>         # save the attached .config to linux build tree
>         make.cross ARCH=sparc64
>
> All warnings (new ones prefixed by >>):
>
>    In file included from include/linux/cdev.h:7:0,
>                     from include/drm/drmP.h:36,
>                     from drivers/gpu//drm/panel/panel-ilitek-ili9322.c:20:
>    drivers/gpu//drm/panel/panel-ilitek-ili9322.c: In function 'ili9322_regmap_spi_read':
>>> drivers/gpu//drm/panel/panel-ilitek-ili9322.c:230:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}' [-Wformat=]
>      dev_info(dev, "READ: %02x reg size = %d, val size = %d\n",
>    227
>    228          /* Set bit 7 to 1 to read */
>    229          memcpy(buf, reg, 1);
>  > 230          dev_info(dev, "READ: %02x reg size = %d, val size = %d\n",
>    231                   buf[0], reg_size, val_size);
>    232          buf[0] |= 0x80;

You want "%zd" instead.

      Arnd