From: kernel test robot <lkp@intel.com>
To: "Jim Cromie" <jim.cromie@gmail.com>,
" Łukasz Bartosik" <ukaszb@chromium.org>
Cc: oe-kbuild-all@lists.linux.dev
Subject: [jimc:dyndbg-maple-clean 47/50] lib/dynamic_debug.c:301:39: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 3458764513820540928 to 0
Date: Mon, 09 Nov 2026 19:36:16 +0800 [thread overview]
Message-ID: <202611091955.WMblcOS9-lkp@intel.com> (raw)
tree: https://github.com/jimc/linux.git dyndbg-maple-clean
head: 5f7782a41d4ca319992609b6589a592f87e83006
commit: af718ee6a3256d73ee276d2c2bbbae9df0da6bfb [47/50] dyndbg: Save _ddebug_site fields into a maple-tree
config: loongarch-randconfig-1000-20261109 (https://download.01.org/0day-ci/archive/20261109/202611091955.WMblcOS9-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project fc9576e3b179738d99c5babe5cd9d6c1f883e0db)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261109/202611091955.WMblcOS9-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202611091955.WMblcOS9-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> lib/dynamic_debug.c:301:39: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 3458764513820540928 to 0 [-Wconstant-conversion]
301 | DEFINE_DYNDBG_SITE_ACCESSOR(function, DD_TAG_FUNC)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
lib/dynamic_debug.c:117:28: note: expanded from macro 'DD_TAG_FUNC'
117 | #define DD_TAG_FUNC (3ULL << DD_KEY_TAG_SHIFT)
| ^
lib/dynamic_debug.c:292:61: note: expanded from macro 'DEFINE_DYNDBG_SITE_ACCESSOR'
292 | unsigned long key = ddebug_site_tag_key((unsigned long)dp, tag); \
| ~~~~~~~~~~~~~~~~~~~ ^~~
lib/dynamic_debug.c:302:39: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 2305843009213693952 to 0 [-Wconstant-conversion]
302 | DEFINE_DYNDBG_SITE_ACCESSOR(filename, DD_TAG_FILE)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
lib/dynamic_debug.c:116:28: note: expanded from macro 'DD_TAG_FILE'
116 | #define DD_TAG_FILE (2ULL << DD_KEY_TAG_SHIFT)
| ^
lib/dynamic_debug.c:292:61: note: expanded from macro 'DEFINE_DYNDBG_SITE_ACCESSOR'
292 | unsigned long key = ddebug_site_tag_key((unsigned long)dp, tag); \
| ~~~~~~~~~~~~~~~~~~~ ^~~
lib/dynamic_debug.c:303:38: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 1152921504606846976 to 0 [-Wconstant-conversion]
303 | DEFINE_DYNDBG_SITE_ACCESSOR(modname, DD_TAG_MOD)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
lib/dynamic_debug.c:115:27: note: expanded from macro 'DD_TAG_MOD'
115 | #define DD_TAG_MOD (1ULL << DD_KEY_TAG_SHIFT)
| ^
lib/dynamic_debug.c:292:61: note: expanded from macro 'DEFINE_DYNDBG_SITE_ACCESSOR'
292 | unsigned long key = ddebug_site_tag_key((unsigned long)dp, tag); \
| ~~~~~~~~~~~~~~~~~~~ ^~~
lib/dynamic_debug.c:311:51: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 1152921504606846976 to 0 [-Wconstant-conversion]
311 | *mod = mtree_load(mt, ddebug_site_tag_key(addr, DD_TAG_MOD)) ?: "unknown";
| ~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~
lib/dynamic_debug.c:115:27: note: expanded from macro 'DD_TAG_MOD'
115 | #define DD_TAG_MOD (1ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:313:52: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 2305843009213693952 to 0 [-Wconstant-conversion]
313 | *file = mtree_load(mt, ddebug_site_tag_key(addr, DD_TAG_FILE)) ?: "unknown";
| ~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~
lib/dynamic_debug.c:116:28: note: expanded from macro 'DD_TAG_FILE'
116 | #define DD_TAG_FILE (2ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:315:52: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 3458764513820540928 to 0 [-Wconstant-conversion]
315 | *func = mtree_load(mt, ddebug_site_tag_key(addr, DD_TAG_FUNC)) ?: "unknown";
| ~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~
lib/dynamic_debug.c:117:28: note: expanded from macro 'DD_TAG_FUNC'
117 | #define DD_TAG_FUNC (3ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:1825:35: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 3458764513820540928 to 0 [-Wconstant-conversion]
1824 | funcs = ddebug_grow_tree(di, &dd_site_map,
| ~~~~~~~~~~~~~~~~
1825 | "func", ddebug_get_function, DD_TAG_FUNC);
| ^~~~~~~~~~~
lib/dynamic_debug.c:117:28: note: expanded from macro 'DD_TAG_FUNC'
117 | #define DD_TAG_FUNC (3ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:1827:35: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 2305843009213693952 to 0 [-Wconstant-conversion]
1826 | files = ddebug_grow_tree(di, &dd_site_map,
| ~~~~~~~~~~~~~~~~
1827 | "file", ddebug_get_filename, DD_TAG_FILE);
| ^~~~~~~~~~~
lib/dynamic_debug.c:116:28: note: expanded from macro 'DD_TAG_FILE'
116 | #define DD_TAG_FILE (2ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:1829:32: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 1152921504606846976 to 0 [-Wconstant-conversion]
1828 | mods = ddebug_grow_tree(di, &dd_site_map,
| ~~~~~~~~~~~~~~~~
1829 | "mod", ddebug_get_modname, DD_TAG_MOD);
| ^~~~~~~~~~
lib/dynamic_debug.c:115:27: note: expanded from macro 'DD_TAG_MOD'
115 | #define DD_TAG_MOD (1ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:1968:52: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 3458764513820540928 to 0 [-Wconstant-conversion]
1968 | unsigned long tags[] = { DD_TAG_MOD, DD_TAG_FILE, DD_TAG_FUNC };
| ~ ^~~~~~~~~~~
lib/dynamic_debug.c:117:28: note: expanded from macro 'DD_TAG_FUNC'
117 | #define DD_TAG_FUNC (3ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:1968:39: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 2305843009213693952 to 0 [-Wconstant-conversion]
1968 | unsigned long tags[] = { DD_TAG_MOD, DD_TAG_FILE, DD_TAG_FUNC };
| ~ ^~~~~~~~~~~
lib/dynamic_debug.c:116:28: note: expanded from macro 'DD_TAG_FILE'
116 | #define DD_TAG_FILE (2ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:1968:27: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 1152921504606846976 to 0 [-Wconstant-conversion]
1968 | unsigned long tags[] = { DD_TAG_MOD, DD_TAG_FILE, DD_TAG_FUNC };
| ~ ^~~~~~~~~~
lib/dynamic_debug.c:115:27: note: expanded from macro 'DD_TAG_MOD'
115 | #define DD_TAG_MOD (1ULL << DD_KEY_TAG_SHIFT)
| ~~~~~^~~~~~~~~~~~~~~~~~~
12 warnings generated.
vim +301 lib/dynamic_debug.c
300
> 301 DEFINE_DYNDBG_SITE_ACCESSOR(function, DD_TAG_FUNC)
302 DEFINE_DYNDBG_SITE_ACCESSOR(filename, DD_TAG_FILE)
303 DEFINE_DYNDBG_SITE_ACCESSOR(modname, DD_TAG_MOD)
304
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-11-09 11:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-09 11:36 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-11-09 5:05 [jimc:dyndbg-maple-clean 47/50] lib/dynamic_debug.c:301:39: warning: implicit conversion from 'unsigned long long' to 'unsigned long' changes value from 3458764513820540928 to 0 kernel test robot
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