[jcmvbkbc-xtensa:xtensa-6.7-rc1-esp32 11/44] drivers/misc/esp32-ipc.c:151:13: warning: cast to 'void *' from smaller integer type 'unsigned int'

[jcmvbkbc-xtensa:xtensa-6.7-rc1-esp32 11/44] drivers/misc/esp32-ipc.c:151:13: warning: cast to 'void *' from smaller integer type 'unsigned int'

[kernel test robot]

tree:   https://github.com/jcmvbkbc/linux-xtensa xtensa-6.7-rc1-esp32
head:   29146ecac0ff1d907be16ff18d485a34985f6bf3
commit: ddc8ee92ef8113ef5f3baf89492755b82c9f7121 [11/44] misc/esp32-ipc: introduce generic IPC for ESP32
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20231125/202311252357.HFUjhapv-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231125/202311252357.HFUjhapv-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/202311252357.HFUjhapv-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/misc/esp32-ipc.c:151:13: warning: cast to 'void *' from smaller integer type 'unsigned int' [-Wint-to-void-pointer-cast]
           hw->hw_q = (void *)readl(p);
                      ^~~~~~~~~~~~~~~~
   1 warning generated.


vim +151 drivers/misc/esp32-ipc.c

   143	
   144	static int init_hw(struct platform_device *pdev, struct esp32_ipc *hw)
   145	{
   146		void __iomem *p;
   147	
   148		p = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 0, NULL);
   149		if (IS_ERR(p))
   150			return PTR_ERR(p);
 > 151		hw->hw_q = (void *)readl(p);
   152		devm_iounmap(&pdev->dev, p);
   153	
   154		hw->regs = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 1, NULL);
   155		if (IS_ERR(hw->regs))
   156			return PTR_ERR(hw->regs);
   157	
   158		dev_dbg(&pdev->dev, "%s: regs = %p, queues = %p\n",
   159			__func__, hw->regs, hw->hw_q);
   160		if (hw->hw_q) {
   161			u32 i;
   162	
   163			for (i = 0; i < 2; ++i) {
   164				dev_dbg(&pdev->dev, "%s: queue %d: offset = %d, mask = %x\n",
   165					__func__, i,
   166					hw->hw_q[i].offset,
   167					hw->hw_q[i].mask);
   168			}
   169		} else {
   170			return -ENODEV;
   171		}
   172	
   173		hw->irq = platform_get_irq(pdev, 0);
   174		if (hw->irq >= 0) {
   175			int ret;
   176	
   177			ret = devm_request_threaded_irq(&pdev->dev, hw->irq,
   178							esp32_ipc_irq_handler,
   179							esp32_ipc_thread_handler,
   180							IRQF_SHARED, pdev->name, hw);
   181			if (ret < 0) {
   182				dev_err(&pdev->dev, "request_irq %d failed\n", hw->irq);
   183				return ret;
   184			}
   185		} else {
   186			dev_err(&pdev->dev, "missing IRQ property\n");
   187			return -ENODEV;
   188		}
   189	
   190		return 0;
   191	}
   192	

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