Re: [PATCH] fbdev: Use of_property_present() for testing DT property presence

[kernel test robot <lkp@intel.com>]

Hi Rob,

I love your patch! Yet something to improve:

[auto build test ERROR on drm-misc/drm-misc-next]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Rob-Herring/fbdev-Use-of_property_present-for-testing-DT-property-presence/20230310-225754
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20230310144729.1545943-1-robh%40kernel.org
patch subject: [PATCH] fbdev: Use of_property_present() for testing DT property presence
config: arm64-randconfig-r032-20230310 (https://download.01.org/0day-ci/archive/20230311/202303111229.3Uuc8JQV-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/c013f4111f36b0b4327e7fbf46c0dd93399e9209
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Rob-Herring/fbdev-Use-of_property_present-for-testing-DT-property-presence/20230310-225754
        git checkout c013f4111f36b0b4327e7fbf46c0dd93399e9209
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/video/fbdev/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303111229.3Uuc8JQV-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/video/fbdev/amba-clcd.c:857:6: error: call to undeclared function 'of_property_present'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
           if (of_property_present(node, "memory-region")) {
               ^
   drivers/video/fbdev/amba-clcd.c:857:6: note: did you mean 'fwnode_property_present'?
   include/linux/property.h:59:6: note: 'fwnode_property_present' declared here
   bool fwnode_property_present(const struct fwnode_handle *fwnode,
        ^
   1 error generated.


vim +/of_property_present +857 drivers/video/fbdev/amba-clcd.c

   843	
   844	static struct clcd_board *clcdfb_of_get_board(struct amba_device *dev)
   845	{
   846		struct clcd_board *board = devm_kzalloc(&dev->dev, sizeof(*board),
   847				GFP_KERNEL);
   848		struct device_node *node = dev->dev.of_node;
   849	
   850		if (!board)
   851			return NULL;
   852	
   853		board->name = of_node_full_name(node);
   854		board->caps = CLCD_CAP_ALL;
   855		board->check = clcdfb_check;
   856		board->decode = clcdfb_decode;
 > 857		if (of_property_present(node, "memory-region")) {
   858			board->setup = clcdfb_of_vram_setup;
   859			board->mmap = clcdfb_of_vram_mmap;
   860			board->remove = clcdfb_of_vram_remove;
   861		} else {
   862			board->setup = clcdfb_of_dma_setup;
   863			board->mmap = clcdfb_of_dma_mmap;
   864			board->remove = clcdfb_of_dma_remove;
   865		}
   866	
   867		return board;
   868	}
   869	#else
   870	static struct clcd_board *clcdfb_of_get_board(struct amba_device *dev)
   871	{
   872		return NULL;
   873	}
   874	#endif
   875	

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