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@xxxxxxxxx/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@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/202408222209.vpdzQng3-lkp@xxxxxxxxx/ 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 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
