tree:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git coccinelle/of_device_get_match_data
head:   855d01e7ecabcc51ac572795173d15205ecc208b
commit: fea5468896584af5f4049eab22c3f42c1943d8bc [1/19] clk: meson: aoclk: don't cast result of of_device_get_match_data()
config: arm64-randconfig-r032-20210919 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git/commit/?id=fea5468896584af5f4049eab22c3f42c1943d8bc
        git remote add wsa https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
        git fetch --no-tags wsa coccinelle/of_device_get_match_data
        git checkout fea5468896584af5f4049eab22c3f42c1943d8bc
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   drivers/clk/meson/meson-aoclk.c: In function 'meson_aoclkc_probe':
>> drivers/clk/meson/meson-aoclk.c:44:14: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
      44 |         data = of_device_get_match_data(dev);
         |              ^


vim +/const +44 drivers/clk/meson/meson-aoclk.c

    35	
    36	int meson_aoclkc_probe(struct platform_device *pdev)
    37	{
    38		struct meson_aoclk_reset_controller *rstc;
    39		struct meson_aoclk_data *data;
    40		struct device *dev = &pdev->dev;
    41		struct regmap *regmap;
    42		int ret, clkid;
    43	
  > 44		data = of_device_get_match_data(dev);

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org