[xilinx-xlnx:xlnx_rebase_v6.12 194/1171] drivers/gpu/drm/xlnx/xlnx_mixer.c:1805:13: warning: cast from pointer to integer of different size

[xilinx-xlnx:xlnx_rebase_v6.12 194/1171] drivers/gpu/drm/xlnx/xlnx_mixer.c:1805:13: warning: cast from pointer to integer of different size

[kernel test robot]

tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v6.12
head:   d25fdf9fee1c8707551f590540e46b3686b90099
commit: 7f39b034942ee80f2e6e595a0d702ea97382d40f [194/1171] drm: xlnx: mixer: Initial video mixer driver
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20260927/202609271610.xp8IzrTP-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260927/202609271610.xp8IzrTP-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/202609271610.xp8IzrTP-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/xlnx/xlnx_mixer.c: In function 'xlnx_mix_update_logo_img':
>> drivers/gpu/drm/xlnx/xlnx_mixer.c:1805:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1805 |         if ((phys_addr_t)buffer->vaddr == logo_layer->layer_regs.buff_addr1 &&
         |             ^
   drivers/gpu/drm/xlnx/xlnx_mixer.c:1811:45: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1811 |         logo_layer->layer_regs.buff_addr1 = (phys_addr_t)buffer->vaddr;
         |                                             ^


vim +1805 drivers/gpu/drm/xlnx/xlnx_mixer.c

  1754	
  1755	static int xlnx_mix_update_logo_img(struct xlnx_mix_plane *plane,
  1756					    struct drm_gem_dma_object *buffer,
  1757					     u32 src_w, u32 src_h)
  1758	{
  1759		struct xlnx_mix_layer_data *logo_layer = plane->mixer_layer;
  1760		struct xlnx_mix_hw *mixer = to_mixer_hw(plane);
  1761		size_t pixel_cnt = src_h * src_w;
  1762		bool per_pixel_alpha = false;
  1763		u32 max_width = logo_layer->hw_config.max_width;
  1764		u32 max_height = logo_layer->hw_config.max_height;
  1765		u32 min_width = logo_layer->hw_config.min_width;
  1766		u32 min_height = logo_layer->hw_config.min_height;
  1767		u8 *r_data = NULL;
  1768		u8 *g_data = NULL;
  1769		u8 *b_data = NULL;
  1770		u8 *a_data = NULL;
  1771		size_t el_size = sizeof(u8);
  1772		u8 *pixel_mem_data;
  1773		int ret, i, j;
  1774	
  1775		/* ensure valid conditions for update */
  1776		if (logo_layer->id != mixer->logo_layer_id)
  1777			return 0;
  1778	
  1779		if (src_h > max_height || src_w > max_width ||
  1780		    src_h < min_height || src_w < min_width) {
  1781			DRM_ERROR("Mixer logo/cursor layer dimensions illegal.\n");
  1782			return -EINVAL;
  1783		}
  1784	
  1785		if (!xlnx_mix_isfmt_support(plane->mixer_layer->hw_config.vid_fmt)) {
  1786			DRM_ERROR("DRM color format not supported for logo layer\n");
  1787			return -EINVAL;
  1788		}
  1789		per_pixel_alpha = (logo_layer->hw_config.vid_fmt ==
  1790				   DRM_FORMAT_RGBA8888) ? true : false;
  1791		r_data = kcalloc(pixel_cnt, el_size, GFP_KERNEL);
  1792		g_data = kcalloc(pixel_cnt, el_size, GFP_KERNEL);
  1793		b_data = kcalloc(pixel_cnt, el_size, GFP_KERNEL);
  1794		if (per_pixel_alpha)
  1795			a_data = kcalloc(pixel_cnt, el_size, GFP_KERNEL);
  1796	
  1797		if (!r_data || !g_data || !b_data || (per_pixel_alpha && !a_data)) {
  1798			DRM_ERROR("Unable to allocate memory for logo layer data\n");
  1799			ret = -ENOMEM;
  1800			goto free;
  1801		}
  1802		/* ensure buffer attributes have changed to indicate new logo
  1803		 * has been created
  1804		 */
> 1805		if ((phys_addr_t)buffer->vaddr == logo_layer->layer_regs.buff_addr1 &&
  1806		    src_w == logo_layer->layer_regs.width &&
  1807		    src_h == logo_layer->layer_regs.height)
  1808			return 0;
  1809	
  1810		/* cache buffer address for future comparison */
  1811		logo_layer->layer_regs.buff_addr1 = (phys_addr_t)buffer->vaddr;
  1812		pixel_mem_data = (u8 *)(buffer->vaddr);
  1813		for (i = 0, j = 0; j < pixel_cnt; j++) {
  1814			if (per_pixel_alpha && a_data)
  1815				a_data[j] = pixel_mem_data[i++];
  1816	
  1817			b_data[j] = pixel_mem_data[i++];
  1818			g_data[j] = pixel_mem_data[i++];
  1819			r_data[j] = pixel_mem_data[i++];
  1820		}
  1821		ret = xlnx_mix_logo_load(to_mixer_hw(plane), src_w, src_h, r_data,
  1822					 g_data, b_data,
  1823					 per_pixel_alpha ? a_data : NULL);
  1824	free:
  1825		kfree(r_data);
  1826		kfree(g_data);
  1827		kfree(b_data);
  1828		kfree(a_data);
  1829	
  1830		return ret;
  1831	}
  1832	

--
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https://github.com/intel/lkp-tests/wiki