Hi Andy,

I love your patch! Perhaps something to improve:

[auto build test WARNING on next-20210604]
[cannot apply to driver-core/driver-core-testing linux/master linus/master v5.13-rc4 v5.13-rc3 v5.13-rc2 v5.13-rc4]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Andy-Shevchenko/device-property-Unify-access-to-of_node/20210604-211443
base:    ccc252d2e818f6a479441119ad453c3ce7c7c461
config: sparc64-randconfig-s032-20210604 (attached as .config)
compiler: sparc64-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # https://github.com/0day-ci/linux/commit/dfc2a97acf9b5c5ba11d180bf411721f723a9042
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Andy-Shevchenko/device-property-Unify-access-to-of_node/20210604-211443
        git checkout dfc2a97acf9b5c5ba11d180bf411721f723a9042
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=sparc64 

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


sparse warnings: (new ones prefixed by >>)
>> drivers/base/property.c:875:55: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected struct fwnode_handle *fwnode @@     got struct fwnode_handle const *fwnode @@
   drivers/base/property.c:875:55: sparse:     expected struct fwnode_handle *fwnode
   drivers/base/property.c:875:55: sparse:     got struct fwnode_handle const *fwnode
   drivers/base/property.c:890:62: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected struct fwnode_handle *fwnode @@     got struct fwnode_handle const *fwnode @@
   drivers/base/property.c:890:62: sparse:     expected struct fwnode_handle *fwnode
   drivers/base/property.c:890:62: sparse:     got struct fwnode_handle const *fwnode

vim +875 drivers/base/property.c

   863	
   864	bool device_dma_supported(struct device *dev)
   865	{
   866		const struct fwnode_handle *fwnode = dev_fwnode(dev);
   867	
   868		/* For DT, this is always supported.
   869		 * For ACPI, this depends on CCA, which
   870		 * is determined by the acpi_dma_supported().
   871		 */
   872		if (is_of_node(fwnode))
   873			return true;
   874	
 > 875		return acpi_dma_supported(to_acpi_device_node(fwnode));
   876	}
   877	EXPORT_SYMBOL_GPL(device_dma_supported);
   878	

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