Hi Jinjie, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on linus/master v6.12-rc3 next-20241017] [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/Jinjie-Ruan/drm-connector-hdmi-Fix-memory-leak-in-drm_display_mode_from_cea_vic/20241014-152022 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20241014071632.989108-2-ruanjinjie%40huawei.com patch subject: [PATCH 1/3] drm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic() config: arc-randconfig-002-20241017 (https://download.01.org/0day-ci/archive/20241018/202410180830.oitxTsOv-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241018/202410180830.oitxTsOv-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/202410180830.oitxTsOv-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_drm_hdmi_compute_mode_clock_rgb': >> drivers/gpu/drm/tests/drm_connector_test.c:1008:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1008 | drm_mode_destroy(drm, mode); | ^~~~ In file included from drivers/gpu/drm/tests/drm_connector_test.c:13: include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc': drivers/gpu/drm/tests/drm_connector_test.c:1031:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1031 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc_vic_1': drivers/gpu/drm/tests/drm_connector_test.c:1051:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1051 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc': drivers/gpu/drm/tests/drm_connector_test.c:1074:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1074 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc_vic_1': drivers/gpu/drm/tests/drm_connector_test.c:1094:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1094 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_drm_hdmi_compute_mode_clock_rgb_double': drivers/gpu/drm/tests/drm_connector_test.c:1117:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1117 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_connector_hdmi_compute_mode_clock_yuv420_valid': drivers/gpu/drm/tests/drm_connector_test.c:1142:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1142 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_connector_hdmi_compute_mode_clock_yuv420_10_bpc': drivers/gpu/drm/tests/drm_connector_test.c:1182:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1182 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_connector_hdmi_compute_mode_clock_yuv420_12_bpc': drivers/gpu/drm/tests/drm_connector_test.c:1209:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1209 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_connector_hdmi_compute_mode_clock_yuv422_8_bpc': drivers/gpu/drm/tests/drm_connector_test.c:1233:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1233 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_connector_hdmi_compute_mode_clock_yuv422_10_bpc': drivers/gpu/drm/tests/drm_connector_test.c:1257:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1257 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/gpu/drm/tests/drm_connector_test.c: In function 'drm_test_connector_hdmi_compute_mode_clock_yuv422_12_bpc': drivers/gpu/drm/tests/drm_connector_test.c:1281:31: warning: passing argument 2 of 'drm_mode_destroy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1281 | drm_mode_destroy(drm, mode); | ^~~~ include/drm/drm_modes.h:456:72: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 456 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [y]: - RESOURCE_KUNIT_TEST [=y] && RUNTIME_TESTING_MENU [=y] && KUNIT [=y] vim +1008 drivers/gpu/drm/tests/drm_connector_test.c 987 988 /* 989 * Test that for a given mode, with 8bpc and an RGB output the TMDS 990 * character rate is equal to the mode pixel clock. 991 */ 992 static void drm_test_drm_hdmi_compute_mode_clock_rgb(struct kunit *test) 993 { 994 struct drm_connector_init_priv *priv = test->priv; 995 const struct drm_display_mode *mode; 996 unsigned long long rate; 997 struct drm_device *drm = &priv->drm; 998 999 mode = drm_display_mode_from_cea_vic(drm, 16); 1000 KUNIT_ASSERT_NOT_NULL(test, mode); 1001 1002 KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); 1003 1004 rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); 1005 KUNIT_ASSERT_GT(test, rate, 0); 1006 KUNIT_EXPECT_EQ(test, mode->clock * 1000ULL, rate); 1007 > 1008 drm_mode_destroy(drm, mode); 1009 } 1010 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
