drivers/gpu/drm/rockchip/cdn-dp-core.c:321:25: sparse: sparse: cast to restricted __le32

drivers/gpu/drm/rockchip/cdn-dp-core.c:321:25: sparse: sparse: cast to restricted __le32

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f0100363d8c374bd8e9ea7c9ba02744f0b802ca4
commit: 0244539f9a4f3b564604dfe4d639f61cecec381a drm/rockchip: Drop ROCKCHIP_IOMMU depend for DRM_ROCKCHIP
date:   9 months ago
config: powerpc64-randconfig-r1308-20260922 (https://download.01.org/0day-ci/archive/20260922/202609221523.NSIdRvjX-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 10.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260922/202609221523.NSIdRvjX-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
| Fixes: 0244539f9a4f ("drm/rockchip: Drop ROCKCHIP_IOMMU depend for DRM_ROCKCHIP")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609221523.NSIdRvjX-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/rockchip/cdn-dp-core.c:321:25: sparse: sparse: cast to restricted __le32

vim +321 drivers/gpu/drm/rockchip/cdn-dp-core.c

1a0f7ed3abe29c Chris Zhong 2017-02-05  312  
1a0f7ed3abe29c Chris Zhong 2017-02-05  313  static int cdn_dp_firmware_init(struct cdn_dp_device *dp)
1a0f7ed3abe29c Chris Zhong 2017-02-05  314  {
1a0f7ed3abe29c Chris Zhong 2017-02-05  315  	int ret;
1a0f7ed3abe29c Chris Zhong 2017-02-05  316  	const u32 *iram_data, *dram_data;
1a0f7ed3abe29c Chris Zhong 2017-02-05  317  	const struct firmware *fw = dp->fw;
1a0f7ed3abe29c Chris Zhong 2017-02-05  318  	const struct cdn_firmware_header *hdr;
1a0f7ed3abe29c Chris Zhong 2017-02-05  319  
1a0f7ed3abe29c Chris Zhong 2017-02-05  320  	hdr = (struct cdn_firmware_header *)fw->data;
1a0f7ed3abe29c Chris Zhong 2017-02-05 @321  	if (fw->size != le32_to_cpu(hdr->size_bytes)) {
1a0f7ed3abe29c Chris Zhong 2017-02-05  322  		DRM_DEV_ERROR(dp->dev, "firmware is invalid\n");
1a0f7ed3abe29c Chris Zhong 2017-02-05  323  		return -EINVAL;
1a0f7ed3abe29c Chris Zhong 2017-02-05  324  	}
1a0f7ed3abe29c Chris Zhong 2017-02-05  325  
1a0f7ed3abe29c Chris Zhong 2017-02-05  326  	iram_data = (const u32 *)(fw->data + hdr->header_size);
1a0f7ed3abe29c Chris Zhong 2017-02-05  327  	dram_data = (const u32 *)(fw->data + hdr->header_size + hdr->iram_size);
1a0f7ed3abe29c Chris Zhong 2017-02-05  328  
1a0f7ed3abe29c Chris Zhong 2017-02-05  329  	ret = cdn_dp_load_firmware(dp, iram_data, hdr->iram_size,
1a0f7ed3abe29c Chris Zhong 2017-02-05  330  				   dram_data, hdr->dram_size);
1a0f7ed3abe29c Chris Zhong 2017-02-05  331  	if (ret)
1a0f7ed3abe29c Chris Zhong 2017-02-05  332  		return ret;
1a0f7ed3abe29c Chris Zhong 2017-02-05  333  
1a0f7ed3abe29c Chris Zhong 2017-02-05  334  	ret = cdn_dp_set_firmware_active(dp, true);
1a0f7ed3abe29c Chris Zhong 2017-02-05  335  	if (ret) {
1a0f7ed3abe29c Chris Zhong 2017-02-05  336  		DRM_DEV_ERROR(dp->dev, "active ucpu failed: %d\n", ret);
1a0f7ed3abe29c Chris Zhong 2017-02-05  337  		return ret;
1a0f7ed3abe29c Chris Zhong 2017-02-05  338  	}
1a0f7ed3abe29c Chris Zhong 2017-02-05  339  
1a0f7ed3abe29c Chris Zhong 2017-02-05  340  	return cdn_dp_event_config(dp);
1a0f7ed3abe29c Chris Zhong 2017-02-05  341  }
1a0f7ed3abe29c Chris Zhong 2017-02-05  342  

:::::: The code at line 321 was first introduced by commit
:::::: 1a0f7ed3abe29cff8e652c69a8ad89aec2c40f00 drm/rockchip: cdn-dp: add cdn DP support for rk3399

:::::: TO: Chris Zhong <zyw@rock-chips.com>
:::::: CC: Mark Yao <mark.yao@rock-chips.com>

--
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