Re: [Patch v2 5/9] soc: tegra: cbb: Add CBB1.0 driver for Tegra194

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

Hi Sumit,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on robh/for-next]
[also build test WARNING on tegra-drm/drm/tegra/for-next v5.16-rc5 next-20211217]
[cannot apply to tegra/for-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]

url:    https://github.com/0day-ci/linux/commits/Sumit-Gupta/CBB-driver-for-Tegra194-Tegra234-Tegra-Grace/20211217-200840
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20211218/202112180528.6oINgaDF-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
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/4289c950622627160bdc937ad22a311db38f4ca8
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Sumit-Gupta/CBB-driver-for-Tegra194-Tegra234-Tegra-Grace/20211217-200840
        git checkout 4289c950622627160bdc937ad22a311db38f4ca8
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/soc/tegra/cbb/

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 >>):

   drivers/soc/tegra/cbb/tegra-cbb.c: In function 'print_cbb_err':
>> drivers/soc/tegra/cbb/tegra-cbb.c:31:17: warning: function 'print_cbb_err' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
      31 |                 seq_vprintf(file, fmt, args);
         |                 ^~~~~~~~~~~


vim +31 drivers/soc/tegra/cbb/tegra-cbb.c

    22	
    23	void print_cbb_err(struct seq_file *file, const char *fmt, ...)
    24	{
    25		va_list args;
    26		struct va_format vaf;
    27	
    28		va_start(args, fmt);
    29	
    30		if (file) {
  > 31			seq_vprintf(file, fmt, args);
    32		} else {
    33			vaf.fmt = fmt;
    34			vaf.va = &args;
    35			pr_crit("%pV", &vaf);
    36		}
    37	
    38		va_end(args);
    39	}
    40	

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