Re: [PATCH 2/2] media: uvcvideo: expose dma-heap hint to userspace

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Hi Christian,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on media-tree/master drm-tip/drm-tip linus/master v6.2-rc5]
[cannot apply to next-20230123]
[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/Christian-K-nig/media-uvcvideo-expose-dma-heap-hint-to-userspace/20230123-213836
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20230123123756.401692-3-christian.koenig%40amd.com
patch subject: [PATCH 2/2] media: uvcvideo: expose dma-heap hint to userspace
config: i386-randconfig-a002-20230123 (https://download.01.org/0day-ci/archive/20230124/202301241137.qT2rnQ5T-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/adc04dccd892eec7f84c6ec112b48df376172e48
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Christian-K-nig/media-uvcvideo-expose-dma-heap-hint-to-userspace/20230123-213836
        git checkout adc04dccd892eec7f84c6ec112b48df376172e48
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/media/usb/uvc/

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

All warnings (new ones prefixed by >>):

   In file included from drivers/media/usb/uvc/uvc_driver.c:10:
>> include/linux/dma-heap.h:92:5: warning: no previous prototype for 'dma_heap_create_device_link' [-Wmissing-prototypes]
      92 | int dma_heap_create_device_link(struct device *dev, const char *heap)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/dma-heap.h:97:6: warning: no previous prototype for 'dma_heap_remove_device_link' [-Wmissing-prototypes]
      97 | void dma_heap_remove_device_link(struct device *dev)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/dma_heap_create_device_link +92 include/linux/dma-heap.h

4ce5c5c0cf31f4 Christian König 2023-01-23   91  
4ce5c5c0cf31f4 Christian König 2023-01-23  @92  int dma_heap_create_device_link(struct device *dev, const char *heap)
4ce5c5c0cf31f4 Christian König 2023-01-23   93  {
4ce5c5c0cf31f4 Christian König 2023-01-23   94  	return 0;
4ce5c5c0cf31f4 Christian König 2023-01-23   95  }
4ce5c5c0cf31f4 Christian König 2023-01-23   96  
4ce5c5c0cf31f4 Christian König 2023-01-23  @97  void dma_heap_remove_device_link(struct device *dev)
4ce5c5c0cf31f4 Christian König 2023-01-23   98  {
4ce5c5c0cf31f4 Christian König 2023-01-23   99  }
4ce5c5c0cf31f4 Christian König 2023-01-23  100  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests



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