Re: [PATCH v6 4/5] device property: Constify fwnode_handle_get()

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Hi Andy,

I love your patch! Yet something to improve:

[auto build test ERROR on driver-core/driver-core-testing]
[also build test ERROR on rafael-pm/linux-next robh/for-next linus/master v5.18-rc1 next-20220408]
[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/intel-lab-lkp/linux/commits/Andy-Shevchenko/device-property-Allow-error-pointer-to-be-passed-to-fwnode-APIs/20220409-025056
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git 3123109284176b1532874591f7c81f3837bbdc17
config: hexagon-randconfig-r041-20220408 (https://download.01.org/0day-ci/archive/20220409/202204091049.rHkbqiFm-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c29a51b3a257908aebc01cd7c4655665db317d66)
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://github.com/intel-lab-lkp/linux/commit/477683439b5ee0954b08970d8c356b4cdaca8bc0
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Andy-Shevchenko/device-property-Allow-error-pointer-to-be-passed-to-fwnode-APIs/20220409-025056
        git checkout 477683439b5ee0954b08970d8c356b4cdaca8bc0
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/base/

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

All errors (new ones prefixed by >>):

>> drivers/base/property.c:782:10: error: returning 'const struct fwnode_handle *' from a function with result type 'struct fwnode_handle *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
                   return fwnode;
                          ^~~~~~
   1 error generated.


vim +782 drivers/base/property.c

613e97218ccbd7 Adam Thomson    2016-06-21  772  
e7887c284969a2 Sakari Ailus    2017-03-28  773  /**
e7887c284969a2 Sakari Ailus    2017-03-28  774   * fwnode_handle_get - Obtain a reference to a device node
e7887c284969a2 Sakari Ailus    2017-03-28  775   * @fwnode: Pointer to the device node to obtain the reference to.
cf89a31ca55272 Sakari Ailus    2017-09-19  776   *
cf89a31ca55272 Sakari Ailus    2017-09-19  777   * Returns the fwnode handle.
e7887c284969a2 Sakari Ailus    2017-03-28  778   */
477683439b5ee0 Andy Shevchenko 2022-04-08  779  struct fwnode_handle *fwnode_handle_get(const struct fwnode_handle *fwnode)
e7887c284969a2 Sakari Ailus    2017-03-28  780  {
cf89a31ca55272 Sakari Ailus    2017-09-19  781  	if (!fwnode_has_op(fwnode, get))
cf89a31ca55272 Sakari Ailus    2017-09-19 @782  		return fwnode;
cf89a31ca55272 Sakari Ailus    2017-09-19  783  
cf89a31ca55272 Sakari Ailus    2017-09-19  784  	return fwnode_call_ptr_op(fwnode, get);
e7887c284969a2 Sakari Ailus    2017-03-28  785  }
e7887c284969a2 Sakari Ailus    2017-03-28  786  EXPORT_SYMBOL_GPL(fwnode_handle_get);
e7887c284969a2 Sakari Ailus    2017-03-28  787  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



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