Re: [PATCH 2/2] drm: add drm_exec selftests v4

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Hi Christian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.4-rc7 next-20230621]
[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/drm-add-drm_exec-selftests-v4/20230621-213827
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20230621133700.7588-2-christian.koenig%40amd.com
patch subject: [PATCH 2/2] drm: add drm_exec selftests v4
config: hexagon-randconfig-r015-20230621 (https://download.01.org/0day-ci/archive/20230622/202306220013.JRZDDrkO-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230622/202306220013.JRZDDrkO-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306220013.JRZDDrkO-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/tests/drm_exec_test.c:134:2: warning: variable '__drm_exec_retry_ptr' set but not used [-Wunused-but-set-variable]
     134 |         drm_exec_until_all_locked(&exec)
         |         ^
   include/drm/drm_exec.h:78:13: note: expanded from macro 'drm_exec_until_all_locked'
      78 |         for (void *__drm_exec_retry_ptr; ({                     \
         |                    ^
   1 warning generated.


vim +/__drm_exec_retry_ptr +134 drivers/gpu/drm/tests/drm_exec_test.c

   121	
   122	static void test_prepare_array(struct kunit *test)
   123	{
   124		struct drm_gem_object gobj1 = { };
   125		struct drm_gem_object gobj2 = { };
   126		struct drm_gem_object *array[] = { &gobj1, &gobj2 };
   127		struct drm_exec exec;
   128		int ret;
   129	
   130		drm_gem_private_object_init(&dev, &gobj1, PAGE_SIZE);
   131		drm_gem_private_object_init(&dev, &gobj2, PAGE_SIZE);
   132	
   133		drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT);
 > 134		drm_exec_until_all_locked(&exec)
   135			ret = drm_exec_prepare_array(&exec, array, ARRAY_SIZE(array),
   136						     1);
   137		KUNIT_EXPECT_EQ(test, ret, 0);
   138		drm_exec_fini(&exec);
   139	}
   140	

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



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