Hi David,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.13-rc3 next-20210527]
[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/David-Gow/kunit-Support-skipped-tests/20210528-160224
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 97e5bf604b7a0d6e1b3e00fe31d5fd4b9bffeaae
config: i386-randconfig-s001-20210528 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # https://github.com/0day-ci/linux/commit/a464519206cd4484f64540020093cb45ef8e272e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review David-Gow/kunit-Support-skipped-tests/20210528-160224
        git checkout a464519206cd4484f64540020093cb45ef8e272e
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=i386 

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 >>):

   lib/kunit/debugfs.c:28:6: warning: no previous prototype for 'kunit_debugfs_cleanup' [-Wmissing-prototypes]
      28 | void kunit_debugfs_cleanup(void)
         |      ^~~~~~~~~~~~~~~~~~~~~
   lib/kunit/debugfs.c:33:6: warning: no previous prototype for 'kunit_debugfs_init' [-Wmissing-prototypes]
      33 | void kunit_debugfs_init(void)
         |      ^~~~~~~~~~~~~~~~~~
   lib/kunit/debugfs.c: In function 'debugfs_print_results':
   lib/kunit/debugfs.c:67:6: error: implicit declaration of function 'kunit_status_to_string'; did you mean 'kunit_status_to_ok_not_ok'? [-Werror=implicit-function-declaration]
      67 |      kunit_status_to_string(success), 1, suite->name);
         |      ^~~~~~~~~~~~~~~~~~~~~~
         |      kunit_status_to_ok_not_ok
>> lib/kunit/debugfs.c:66:20: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int' [-Wformat=]
      66 |  seq_printf(seq, "%s %d - %s\n",
         |                   ~^
         |                    |
         |                    char *
         |                   %d
      67 |      kunit_status_to_string(success), 1, suite->name);
         |      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |      |
         |      int
   lib/kunit/debugfs.c: At top level:
   lib/kunit/debugfs.c:92:6: warning: no previous prototype for 'kunit_debugfs_create_suite' [-Wmissing-prototypes]
      92 | void kunit_debugfs_create_suite(struct kunit_suite *suite)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   lib/kunit/debugfs.c:108:6: warning: no previous prototype for 'kunit_debugfs_destroy_suite' [-Wmissing-prototypes]
     108 | void kunit_debugfs_destroy_suite(struct kunit_suite *suite)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +66 lib/kunit/debugfs.c

e2219db280e3fe Alan Maguire 2020-03-26  48  
e2219db280e3fe Alan Maguire 2020-03-26  49  /*
e2219db280e3fe Alan Maguire 2020-03-26  50   * /sys/kernel/debug/kunit/<testsuite>/results shows all results for testsuite.
e2219db280e3fe Alan Maguire 2020-03-26  51   */
e2219db280e3fe Alan Maguire 2020-03-26  52  static int debugfs_print_results(struct seq_file *seq, void *v)
e2219db280e3fe Alan Maguire 2020-03-26  53  {
e2219db280e3fe Alan Maguire 2020-03-26  54  	struct kunit_suite *suite = (struct kunit_suite *)seq->private;
e2219db280e3fe Alan Maguire 2020-03-26  55  	bool success = kunit_suite_has_succeeded(suite);
e2219db280e3fe Alan Maguire 2020-03-26  56  	struct kunit_case *test_case;
e2219db280e3fe Alan Maguire 2020-03-26  57  
e2219db280e3fe Alan Maguire 2020-03-26  58  	if (!suite || !suite->log)
e2219db280e3fe Alan Maguire 2020-03-26  59  		return 0;
e2219db280e3fe Alan Maguire 2020-03-26  60  
e2219db280e3fe Alan Maguire 2020-03-26  61  	seq_printf(seq, "%s", suite->log);
e2219db280e3fe Alan Maguire 2020-03-26  62  
e2219db280e3fe Alan Maguire 2020-03-26  63  	kunit_suite_for_each_test_case(suite, test_case)
e2219db280e3fe Alan Maguire 2020-03-26  64  		debugfs_print_result(seq, suite, test_case);
e2219db280e3fe Alan Maguire 2020-03-26  65  
e2219db280e3fe Alan Maguire 2020-03-26 @66  	seq_printf(seq, "%s %d - %s\n",
e2219db280e3fe Alan Maguire 2020-03-26  67  		   kunit_status_to_string(success), 1, suite->name);
e2219db280e3fe Alan Maguire 2020-03-26  68  	return 0;
e2219db280e3fe Alan Maguire 2020-03-26  69  }
e2219db280e3fe Alan Maguire 2020-03-26  70  

---
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