[android-common:main-16k-gs-shusky-5.15 17/17] drivers/cma_test/cma_alloc_test_drv.c:122:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode

[android-common:main-16k-gs-shusky-5.15 17/17] drivers/cma_test/cma_alloc_test_drv.c:122:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common main-16k-gs-shusky-5.15
head:   f344ab3d86fe50dc56c87b7a96c07b8210635ec5
commit: 43b8bd1b3be373d3fd2e20886db6cb08d4081ad5 [17/17] ANDROID: cma: Allocate CMA memory at probing time
config: arm-randconfig-002-20250403 (https://download.01.org/0day-ci/archive/20250403/202504030800.EtHpXF4e-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250403/202504030800.EtHpXF4e-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/202504030800.EtHpXF4e-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/cma_test/cma_alloc_test_drv.c: In function 'cma_test_probe':
   drivers/cma_test/cma_alloc_test_drv.c:104:24: error: 'struct device' has no member named 'cma_area'; did you mean 'dma_parms'?
     if (ret || !pdev->dev.cma_area) {
                           ^~~~~~~~
                           dma_parms
   drivers/cma_test/cma_alloc_test_drv.c:117:22: error: 'struct device' has no member named 'cma_area'; did you mean 'dma_parms'?
     cma_ptr = pdev->dev.cma_area;
                         ^~~~~~~~
                         dma_parms
>> drivers/cma_test/cma_alloc_test_drv.c:122:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
      for (int i = 0; i < nr_pages; i++) {
      ^~~
   drivers/cma_test/cma_alloc_test_drv.c:122:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
   drivers/cma_test/cma_alloc_test_drv.c: At top level:
   drivers/cma_test/cma_alloc_test_drv.c:167:12: error: initialization of 'int (*)(struct platform_device *)' from incompatible pointer type 'void (*)(struct platform_device *)' [-Werror=incompatible-pointer-types]
     .remove = cma_test_remove,
               ^~~~~~~~~~~~~~~
   drivers/cma_test/cma_alloc_test_drv.c:167:12: note: (near initialization for 'cma_test_driver.remove')
   cc1: some warnings being treated as errors


vim +/for +122 drivers/cma_test/cma_alloc_test_drv.c

    88	
    89	static int cma_test_probe(struct platform_device *pdev)
    90	{
    91		int ret;
    92		const struct of_device_id *of_id;
    93	
    94		pr_info("Probing device");
    95	
    96		buffer = NULL;
    97		of_id = of_match_device(cma_test_dt_ids, &pdev->dev);
    98		if (!of_id) {
    99			pr_info("The node was not found in DTB");
   100			return -ENODEV;
   101		}
   102	
   103		ret = of_reserved_mem_device_init(&pdev->dev);
 > 104		if (ret || !pdev->dev.cma_area) {
   105			dev_err(&pdev->dev,
   106				"The CMA reserved area is not assigned (ret %d)\n",
   107				ret);
   108			return -EINVAL;
   109		}
   110	
   111		ret = devm_add_action(&pdev->dev, rmem_remove_callback, &pdev->dev);
   112		if (ret) {
   113			of_reserved_mem_device_release(&pdev->dev);
   114			return ret;
   115		}
   116	
   117		cma_ptr = pdev->dev.cma_area;
   118		pages = cma_alloc(cma_ptr, nr_pages, get_order(PAGE_SIZE), false);
   119		if (pages) {
   120			pr_info("CMA allocation of %d pages was successful", nr_pages);
   121			buffer = kmap_local_page(pages);
 > 122			for (int i = 0; i < nr_pages; i++) {
   123				// Write one byte of every page.
   124				buffer[i * PAGE_SIZE] = 'A';
   125			}
   126	
   127		}
   128	
   129		return 0;
   130	}
   131	

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