* [jimc:dd-shrink-cached 62/64] lib/dynamic_debug.c:2146:2: error: call to undeclared function 'arena_mas_lock'; ISO C99 and later do not support implicit function declarations
@ 2026-08-19 6:20 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-08-19 6:20 UTC (permalink / raw)
To: Jim Cromie, Łukasz Bartosik; +Cc: oe-kbuild-all
tree: https://github.com/jimc/linux.git dd-shrink-cached
head: 917ff2e5a74ae1c252ad3a2c9017bd464f9258f9
commit: 9ddeda37ca2aba5800b9bbc30e16a1db1ce44e5c [62/64] lib/arena_maple_tree: Specialized arena-backed maple tree
config: i386-buildonly-randconfig-001-20260819 (https://download.01.org/0day-ci/archive/20260819/202608191428.AxPChBSW-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260819/202608191428.AxPChBSW-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/202608191428.AxPChBSW-lkp@intel.com/
All errors (new ones prefixed by >>):
lib/dynamic_debug.c:112:20: warning: no previous prototype for function 'ddebug_arena_alloc' [-Wmissing-prototypes]
112 | struct maple_node *ddebug_arena_alloc(void *arena, gfp_t gfp)
| ^
lib/dynamic_debug.c:112:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
112 | struct maple_node *ddebug_arena_alloc(void *arena, gfp_t gfp)
| ^
| static
lib/dynamic_debug.c:408:2: error: call to undeclared function 'arena_mas_init'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
408 | arena_mas_init(&mas, mt, (unsigned long)dp);
| ^
lib/dynamic_debug.c:409:8: error: call to undeclared function 'arena_mas_walk'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
409 | val = arena_mas_walk(&mas);
| ^
lib/dynamic_debug.c:409:6: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
409 | val = arena_mas_walk(&mas);
| ^ ~~~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:415:18: error: call to undeclared function 'arena_mas_prev'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
415 | while ((val = arena_mas_prev(&mas, 0))) {
| ^
lib/dynamic_debug.c:415:16: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
415 | while ((val = arena_mas_prev(&mas, 0))) {
| ^ ~~~~~~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:474:8: error: call to undeclared function 'arena_mtree_store_range'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
474 | rc = arena_mtree_store_range(mt, first, last, (void *)name, GFP_KERNEL);
| ^
lib/dynamic_debug.c:474:8: note: did you mean 'mtree_store_range'?
include/linux/maple_tree.h:384:5: note: 'mtree_store_range' declared here
384 | int mtree_store_range(struct maple_tree *mt, unsigned long first,
| ^
lib/dynamic_debug.c:477:8: error: call to undeclared function 'arena_mtree_store_range'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
477 | rc = arena_mtree_store_range(mt, addr, addr, (void *)name, GFP_KERNEL);
| ^
lib/dynamic_debug.c:480:8: error: call to undeclared function 'arena_mtree_store_range'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
480 | rc = arena_mtree_store_range(mt, addr, addr, (void *)name, GFP_KERNEL);
| ^
>> lib/dynamic_debug.c:2146:2: error: call to undeclared function 'arena_mas_lock'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2146 | arena_mas_lock(&mas);
| ^
>> lib/dynamic_debug.c:2148:2: error: call to undeclared function 'arena_mas_erase'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2148 | arena_mas_erase(&mas);
| ^
>> lib/dynamic_debug.c:2150:2: error: call to undeclared function 'arena_mas_unlock'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2150 | arena_mas_unlock(&mas);
| ^
lib/dynamic_debug.c:2306:2: error: call to undeclared function 'arena_mas_init'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2306 | arena_mas_init(&mas, mt, addr);
| ^
lib/dynamic_debug.c:2310:9: error: call to undeclared function 'arena_mas_walk'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2310 | val = arena_mas_walk(&mas);
| ^
lib/dynamic_debug.c:2310:7: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
2310 | val = arena_mas_walk(&mas);
| ^ ~~~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:2321:16: error: call to undeclared function 'arena_mas_prev'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2321 | while ((val = arena_mas_prev(&mas, 0))) {
| ^
lib/dynamic_debug.c:2321:14: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
2321 | while ((val = arena_mas_prev(&mas, 0))) {
| ^ ~~~~~~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:2336:16: error: call to undeclared function 'arena_mas_next'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2336 | while ((val = arena_mas_next(&mas, ULONG_MAX))) {
| ^
lib/dynamic_debug.c:2336:14: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
2336 | while ((val = arena_mas_next(&mas, ULONG_MAX))) {
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
lib/dynamic_debug.c:2429:3: error: call to undeclared function 'arena___mt_destroy'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2429 | arena___mt_destroy(&dd_modules_site_map.mt);
| ^
lib/dynamic_debug.c:2429:3: note: did you mean '__mt_destroy'?
include/linux/maple_tree.h:394:6: note: '__mt_destroy' declared here
394 | void __mt_destroy(struct maple_tree *mt);
| ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
1 warning and 20 errors generated.
vim +/arena_mas_lock +2146 lib/dynamic_debug.c
2131
2132 /*
2133 * Called in response to a module being unloaded. Removes
2134 * any ddebug_table's which point at the module.
2135 */
2136 static void ddebug_module_sites_clear(struct ddebug_table *dt)
2137 {
2138 unsigned long start = (unsigned long) dt->info.descs.start;
2139 unsigned long end = (unsigned long) &dt->info.descs.start[dt->info.descs.len - 1];
2140
2141 MA_STATE(mas, &dd_modules_site_map.mt, start - DD_KEY_MOD_OFFSET, end);
2142
2143 v2pr_info("clearing %3d debugs of removed module %s\n",
2144 dt->info.descs.len, dt->info.mod_name);
2145
> 2146 arena_mas_lock(&mas);
2147 current_ddebug_write_tree = &dd_modules_site_map.mt;
> 2148 arena_mas_erase(&mas);
2149 current_ddebug_write_tree = NULL;
> 2150 arena_mas_unlock(&mas);
2151
2152 if (dt->compressed_sites) {
2153 vfree(dt->compressed_sites);
2154 dt->compressed_sites = NULL;
2155 }
2156 }
2157
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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