[daeinki-drm-exynos:exynos-drm-next 3/4] drivers/gpu/drm/exynos/exynos_drm_gem.c:70:41: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int')

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git exynos-drm-next
head:   0867757f1eec0a246c70b2407a1bbed949170821
commit: 11e898373fba6b1d27b15ab4beff592701a57293 [3/4] drm/exynos: Drop exynos_drm_gem.size field
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20260408/202604081946.qVUp1v71-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260408/202604081946.qVUp1v71-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604081946.qVUp1v71-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/exynos/exynos_drm_gem.c:70:41: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
      69 |         DRM_DEV_DEBUG_KMS(drm_dev_dma_dev(dev), "dma_addr(0x%lx), size(0x%lx)\n",
         |                                                                          ~~~
         |                                                                          %zx
      70 |                         (unsigned long)exynos_gem->dma_addr, exynos_gem->base.size);
         |                                                              ^~~~~~~~~~~~~~~~~~~~~
   include/drm/drm_print.h:599:38: note: expanded from macro 'DRM_DEV_DEBUG_KMS'
     599 |         drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__VA_ARGS__)
         |                                      ~~~    ^~~~~~~~~~~
   include/drm/drm_print.h:563:39: note: expanded from macro 'drm_dev_dbg'
     563 |         __drm_dev_dbg(NULL, dev, cat, fmt, ##__VA_ARGS__)
         |                                       ~~~    ^~~~~~~~~~~
   drivers/gpu/drm/exynos/exynos_drm_gem.c:84:41: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
      83 |         DRM_DEV_DEBUG_KMS(dev->dev, "dma_addr(0x%lx), size(0x%lx)\n",
         |                                                              ~~~
         |                                                              %zx
      84 |                         (unsigned long)exynos_gem->dma_addr, exynos_gem->base.size);
         |                                                              ^~~~~~~~~~~~~~~~~~~~~
   include/drm/drm_print.h:599:38: note: expanded from macro 'DRM_DEV_DEBUG_KMS'
     599 |         drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__VA_ARGS__)
         |                                      ~~~    ^~~~~~~~~~~
   include/drm/drm_print.h:563:39: note: expanded from macro 'drm_dev_dbg'
     563 |         __drm_dev_dbg(NULL, dev, cat, fmt, ##__VA_ARGS__)
         |                                       ~~~    ^~~~~~~~~~~
   2 warnings generated.


vim +70 drivers/gpu/drm/exynos/exynos_drm_gem.c

    26	
    27	static int exynos_drm_alloc_buf(struct exynos_drm_gem *exynos_gem, bool kvmap)
    28	{
    29		struct drm_device *dev = exynos_gem->base.dev;
    30		unsigned long attr = 0;
    31	
    32		if (exynos_gem->dma_addr) {
    33			DRM_DEV_DEBUG_KMS(drm_dev_dma_dev(dev), "already allocated.\n");
    34			return 0;
    35		}
    36	
    37		/*
    38		 * if EXYNOS_BO_CONTIG, fully physically contiguous memory
    39		 * region will be allocated else physically contiguous
    40		 * as possible.
    41		 */
    42		if (!(exynos_gem->flags & EXYNOS_BO_NONCONTIG))
    43			attr |= DMA_ATTR_FORCE_CONTIGUOUS;
    44	
    45		/*
    46		 * if EXYNOS_BO_WC or EXYNOS_BO_NONCACHABLE, writecombine mapping
    47		 * else cachable mapping.
    48		 */
    49		if (exynos_gem->flags & EXYNOS_BO_WC ||
    50				!(exynos_gem->flags & EXYNOS_BO_CACHABLE))
    51			attr |= DMA_ATTR_WRITE_COMBINE;
    52	
    53		/* FBDev emulation requires kernel mapping */
    54		if (!kvmap)
    55			attr |= DMA_ATTR_NO_KERNEL_MAPPING;
    56	
    57		exynos_gem->dma_attrs = attr;
    58		exynos_gem->cookie = dma_alloc_attrs(drm_dev_dma_dev(dev), exynos_gem->base.size,
    59						     &exynos_gem->dma_addr, GFP_KERNEL,
    60						     exynos_gem->dma_attrs);
    61		if (!exynos_gem->cookie) {
    62			DRM_DEV_ERROR(drm_dev_dma_dev(dev), "failed to allocate buffer.\n");
    63			return -ENOMEM;
    64		}
    65	
    66		if (kvmap)
    67			exynos_gem->kvaddr = exynos_gem->cookie;
    68	
    69		DRM_DEV_DEBUG_KMS(drm_dev_dma_dev(dev), "dma_addr(0x%lx), size(0x%lx)\n",
  > 70				(unsigned long)exynos_gem->dma_addr, exynos_gem->base.size);
    71		return 0;
    72	}
    73	

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