Hi Ville, kernel test robot noticed the following build errors:
[auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.9-rc2 next-20240405] [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/Ville-Syrjala/drm-client-Fully-protect-modes-with-dev-mode_config-mutex/20240405-043540 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20240404203336.10454-7-ville.syrjala%40linux.intel.com patch subject: [PATCH 06/12] drm/client: Constify modes config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240407/202404070528.ngbakkh3-...@intel.com/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 546dc2245ffc4cccd0b05b58b7a5955e355a3b27) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240407/202404070528.ngbakkh3-...@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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202404070528.ngbakkh3-...@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/gpu/drm/drm_client_modeset.c:16: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:547:31: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/gpu/drm/drm_client_modeset.c:16: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:573:61: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/gpu/drm/drm_client_modeset.c:16: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:584:33: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ In file included from drivers/gpu/drm/drm_client_modeset.c:16: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:36: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:28: In file included from include/linux/ftrace.h:13: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:2208: include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/gpu/drm/drm_client_modeset.c:1241: >> drivers/gpu/drm/tests/drm_client_modeset_test.c:108:7: error: assigning to >> 'struct drm_display_mode *' from 'const struct drm_display_mode *' discards >> qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers] 108 | mode = drm_connector_pick_cmdline_mode(connector); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 8 errors generated. vim +108 drivers/gpu/drm/tests/drm_client_modeset_test.c 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 84 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 85 static void drm_test_pick_cmdline_res_1920_1080_60(struct kunit *test) 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 86 { 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 87 struct drm_client_modeset_test_priv *priv = test->priv; 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 88 struct drm_device *drm = priv->drm; 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 89 struct drm_connector *connector = &priv->connector; 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 90 struct drm_cmdline_mode *cmdline_mode = &connector->cmdline_mode; 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 91 struct drm_display_mode *expected_mode, *mode; 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 92 const char *cmdline = "1920x1080@60"; 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 93 int ret; 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 94 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 95 expected_mode = drm_mode_find_dmt(priv->drm, 1920, 1080, 60, false); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 96 KUNIT_ASSERT_NOT_NULL(test, expected_mode); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 97 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 98 KUNIT_ASSERT_TRUE(test, 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 99 drm_mode_parse_command_line_for_connector(cmdline, 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 100 connector, 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 101 cmdline_mode)); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 102 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 103 mutex_lock(&drm->mode_config.mutex); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 104 ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 105 mutex_unlock(&drm->mode_config.mutex); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 106 KUNIT_ASSERT_GT(test, ret, 0); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 107 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 @108 mode = drm_connector_pick_cmdline_mode(connector); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 109 KUNIT_ASSERT_NOT_NULL(test, mode); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 110 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 111 KUNIT_EXPECT_TRUE(test, drm_mode_equal(expected_mode, mode)); 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 112 } 8fc0380f6ba7e9 Maxime Ripard 2022-11-14 113 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
