[PATCH 06/12] drm/client: Constify modes
kernel test robot
lkp at intel.com
Sat Apr 6 21:59:38 UTC 2024
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-lkp@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-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/202404070528.NgbaKKH3-lkp@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 at 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
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