[PATCH v5 20/44] drm/tests: Add a few tests around drm_fixed.h
kernel test robot
lkp at intel.com
Thu Aug 22 14:55:47 UTC 2024
Hi Harry,
kernel test robot noticed the following build errors:
[auto build test ERROR on drm/drm-next]
[also build test ERROR on drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master v6.11-rc4 next-20240822]
[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/Harry-Wentland/drm-Add-helper-for-conversion-from-signed-magnitude/20240820-050138
base: git://anongit.freedesktop.org/drm/drm drm-next
patch link: https://lore.kernel.org/r/20240819205714.316380-21-harry.wentland%40amd.com
patch subject: [PATCH v5 20/44] drm/tests: Add a few tests around drm_fixed.h
config: um-randconfig-r123-20240821 (https://download.01.org/0day-ci/archive/20240822/202408222209.vpdzQng3-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 26670e7fa4f032a019d23d56c6a02926e854e8af)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240822/202408222209.vpdzQng3-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408222209.vpdzQng3-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/gpu/drm/tests/drm_fixp_test.c:11:59: error: overflow in expression; result is 9'223'372'036'854'775'807 with type 'long long' [-Werror,-Winteger-overflow]
11 | KUNIT_EXPECT_EQ(test, 0x7fffffffffffffffll, ((1LL << 63) - 1));
| ~~~~~~~~~~~~^~~
include/kunit/test.h:917:34: note: expanded from macro 'KUNIT_EXPECT_EQ'
917 | KUNIT_EXPECT_EQ_MSG(test, left, right, NULL)
| ^~~~~
include/kunit/test.h:922:18: note: expanded from macro 'KUNIT_EXPECT_EQ_MSG'
922 | left, ==, right, \
| ^~~~~
include/kunit/test.h:758:19: note: expanded from macro 'KUNIT_BINARY_INT_ASSERTION'
758 | left, op, right, \
| ^~~~~
include/kunit/test.h:725:33: note: expanded from macro 'KUNIT_BASE_BINARY_ASSERTION'
725 | const typeof(right) __right = (right); \
| ^~~~~
1 error generated.
vim +11 drivers/gpu/drm/tests/drm_fixp_test.c
8
9 static void drm_test_sm2fixp(struct kunit *test)
10 {
> 11 KUNIT_EXPECT_EQ(test, 0x7fffffffffffffffll, ((1LL << 63) - 1));
12
13 /* 1 */
14 KUNIT_EXPECT_EQ(test, drm_int2fixp(1), drm_sm2fixp(1ull << DRM_FIXED_POINT));
15
16 /* -1 */
17 KUNIT_EXPECT_EQ(test, drm_int2fixp(-1), drm_sm2fixp((1ull << 63) | (1ull << DRM_FIXED_POINT)));
18
19 /* 0.5 */
20 KUNIT_EXPECT_EQ(test, drm_fixp_from_fraction(1, 2), drm_sm2fixp(1ull << (DRM_FIXED_POINT - 1)));
21
22 /* -0.5 */
23 KUNIT_EXPECT_EQ(test, drm_fixp_from_fraction(-1, 2), drm_sm2fixp((1ull << 63) | (1ull << (DRM_FIXED_POINT - 1))));
24
--
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