Re: [PATCH v4 8/8] media: stm32-dma2d: STM32 DMA2D driver

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

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Hi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on media-tree/master]
[also build test ERROR on atorgue-stm32/stm32-next clk/clk-next linus/master v5.15]
[cannot apply to next-20211106]
[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/dillon-minfei-gmail-com/Add-support-for-DMA2D-of-STMicroelectronics-STM32-Soc-series/20211014-182826
base:   git://linuxtv.org/media_tree.git master
config: hexagon-buildonly-randconfig-r003-20211025 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project a461fa64bb37cffd73f683c74f6b0780379fc2ca)
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/0day-ci/linux/commit/af498051ebf90dbd11747a29cdc2eea74de2afea
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review dillon-minfei-gmail-com/Add-support-for-DMA2D-of-STMicroelectronics-STM32-Soc-series/20211014-182826
        git checkout af498051ebf90dbd11747a29cdc2eea74de2afea
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=hexagon 

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

All errors (new ones prefixed by >>):

>> drivers/media/platform/stm32/dma2d/dma2d-hw.c:29:20: error: unused function 'reg_set' [-Werror,-Wunused-function]
   static inline void reg_set(void __iomem *base, u32 reg, u32 mask)
                      ^
>> drivers/media/platform/stm32/dma2d/dma2d-hw.c:34:20: error: unused function 'reg_clear' [-Werror,-Wunused-function]
   static inline void reg_clear(void __iomem *base, u32 reg, u32 mask)
                      ^
   2 errors generated.


vim +/reg_set +29 drivers/media/platform/stm32/dma2d/dma2d-hw.c

    28	
  > 29	static inline void reg_set(void __iomem *base, u32 reg, u32 mask)
    30	{
    31		reg_write(base, reg, reg_read(base, reg) | mask);
    32	}
    33	
  > 34	static inline void reg_clear(void __iomem *base, u32 reg, u32 mask)
    35	{
    36		reg_write(base, reg, reg_read(base, reg) & ~mask);
    37	}
    38	

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

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