Re: [PATCH v3 3/3] drm/gem-dma: Support DRM_MODE_DUMB_KERNEL_MAP flag

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

Hi Chen-Yu,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on next-20260327]
[cannot apply to sunxi/sunxi/for-next linus/master v7.0-rc5]
[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/Chen-Yu-Tsai/drm-Introduce-DRM_MODE_DUMB_KERNEL_MAP-flag/20260328-141115
base:   https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next
patch link:    https://lore.kernel.org/r/20260326100248.1171828-4-wenst%40chromium.org
patch subject: [PATCH v3 3/3] drm/gem-dma: Support DRM_MODE_DUMB_KERNEL_MAP flag
config: arm-randconfig-001-20260328 (https://download.01.org/0day-ci/archive/20260328/202603282230.Yz4kBrTt-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260328/202603282230.Yz4kBrTt-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603282230.Yz4kBrTt-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/stm/drv.c: In function 'stm_gem_dma_dumb_create':
>> drivers/gpu/drm/stm/drv.c:55:23: error: 'DRM_MODE_DUMB_KERNEL_MAP' undeclared (first use in this function)
      55 |         args->flags = DRM_MODE_DUMB_KERNEL_MAP;
         |                       ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/stm/drv.c:55:23: note: each undeclared identifier is reported only once for each function it appears in
--
   drivers/gpu/drm/arm/malidp_drv.c: In function 'malidp_dumb_create':
>> drivers/gpu/drm/arm/malidp_drv.c:467:23: error: 'DRM_MODE_DUMB_KERNEL_MAP' undeclared (first use in this function)
     467 |         args->flags = DRM_MODE_DUMB_KERNEL_MAP;
         |                       ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/arm/malidp_drv.c:467:23: note: each undeclared identifier is reported only once for each function it appears in
--
   drivers/gpu/drm/arm/display/komeda/komeda_kms.c: In function 'komeda_gem_dma_dumb_create':
>> drivers/gpu/drm/arm/display/komeda/komeda_kms.c:32:23: error: 'DRM_MODE_DUMB_KERNEL_MAP' undeclared (first use in this function)
      32 |         args->flags = DRM_MODE_DUMB_KERNEL_MAP;
         |                       ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/arm/display/komeda/komeda_kms.c:32:23: note: each undeclared identifier is reported only once for each function it appears in


vim +/DRM_MODE_DUMB_KERNEL_MAP +55 drivers/gpu/drm/stm/drv.c

    43	
    44	static int stm_gem_dma_dumb_create(struct drm_file *file,
    45					   struct drm_device *dev,
    46					   struct drm_mode_create_dumb *args)
    47	{
    48		unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
    49	
    50		/*
    51		 * in order to optimize data transfer, pitch is aligned on
    52		 * 128 bytes, height is aligned on 4 bytes
    53		 */
    54		args->height = roundup(args->height, 4);
  > 55		args->flags = DRM_MODE_DUMB_KERNEL_MAP;
    56		args->pitch = roundup(min_pitch, 128);
    57	
    58		return drm_gem_dma_dumb_create_internal(file, dev, args);
    59	}
    60	

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