Hi Benjamin,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on next-20210401]
[cannot apply to sunxi/sunxi/for-next robh/for-next v5.12-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]

url:    https://github.com/0day-ci/linux/commits/Benjamin-Gaignard/Add-HANTRO-G2-HEVC-decoder-support-for-IMX8MQ/20210402-000448
base:   git://linuxtv.org/media_tree.git master
config: microblaze-randconfig-r001-20210401 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
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/261dd584acbba0d1e0551f02b612ded3f85456b1
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Benjamin-Gaignard/Add-HANTRO-G2-HEVC-decoder-support-for-IMX8MQ/20210402-000448
        git checkout 261dd584acbba0d1e0551f02b612ded3f85456b1
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze 

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

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:7,
                    from include/linux/kernel.h:16,
                    from include/linux/videodev2.h:60,
                    from include/media/videobuf2-v4l2.h:15,
                    from include/media/v4l2-mem2mem.h:16,
                    from drivers/staging/media/hantro/hantro_hevc.c:9:
   drivers/staging/media/hantro/hantro_hevc.c: In function 'hantro_hevc_mv_size':
>> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 6 has type 'size_t' {aka 'unsigned int'} [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH'
      14 | #define KERN_INFO KERN_SOH "6" /* informational */
         |                   ^~~~~~~~
   include/linux/printk.h:373:9: note: in expansion of macro 'KERN_INFO'
     373 |  printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~~~~
   drivers/staging/media/hantro/hantro.h:322:4: note: in expansion of macro 'pr_info'
     322 |    pr_info("%s:%d: " fmt,                 \
         |    ^~~~~~~
   drivers/staging/media/hantro/hantro_hevc.c:56:2: note: in expansion of macro 'vpu_debug'
      56 |  vpu_debug(4, "%dx%d (CTBs) %ld MV bytes\n",
         |  ^~~~~~~~~
   drivers/staging/media/hantro/hantro_hevc.c:56:31: note: format string is defined here
      56 |  vpu_debug(4, "%dx%d (CTBs) %ld MV bytes\n",
         |                             ~~^
         |                               |
         |                               long int
         |                             %d


vim +5 include/linux/kern_levels.h

314ba3520e513a Joe Perches 2012-07-30  4  
04d2c8c83d0e3a Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c83d0e3a Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c83d0e3a Joe Perches 2012-07-30  7  

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