From: kernel test robot <lkp@intel.com>
To: Anup Patel <anup.patel@oss.qualcomm.com>
Cc: oe-kbuild-all@lists.linux.dev,
Mayuresh Chitale <mayuresh.chitale@oss.qualcomm.com>
Subject: [avpatel:riscv_trace_acpi_support_v1 94/112] drivers/hwtracing/gtrace/gtrace-core.c:561:10: error: call to undeclared function 'kzalloc_obj'; ISO C99 and later do not support implicit function declarations
Date: Thu, 13 Aug 2026 12:12:30 +0800 [thread overview]
Message-ID: <202608131205.sppv2u7u-lkp@intel.com> (raw)
tree: https://github.com/avpatel/linux.git riscv_trace_acpi_support_v1
head: 04c254020ba99b7f6db9ab6c87ed4cb4a688ba9a
commit: c8b928f098710cd4a1cf5604883f2f025c011cea [94/112] gtrace: Add functions to create/destroy a trace component path
config: arm-randconfig-r053-20260812 (https://download.01.org/0day-ci/archive/20260813/202608131205.sppv2u7u-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 12df34b8469b8095359de8c249cb1b2753fadeea)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260813/202608131205.sppv2u7u-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/202608131205.sppv2u7u-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/hwtracing/gtrace/gtrace-core.c:347:2: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
347 | kfree(comp);
| ^
drivers/hwtracing/gtrace/gtrace-core.c:390:9: error: call to undeclared function 'kzalloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
390 | comp = kzalloc(sizeof(*comp), GFP_KERNEL);
| ^
drivers/hwtracing/gtrace/gtrace-core.c:390:7: error: incompatible integer to pointer conversion assigning to 'struct gtrace_component *' from 'int' [-Wint-conversion]
390 | comp = kzalloc(sizeof(*comp), GFP_KERNEL);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/hwtracing/gtrace/gtrace-core.c:399:3: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
399 | kfree(comp);
| ^
>> drivers/hwtracing/gtrace/gtrace-core.c:561:10: error: call to undeclared function 'kzalloc_obj'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
561 | node = kzalloc_obj(*node);
| ^
>> drivers/hwtracing/gtrace/gtrace-core.c:561:8: error: incompatible integer to pointer conversion assigning to 'struct gtrace_path_node *' from 'int' [-Wint-conversion]
561 | node = kzalloc_obj(*node);
| ^ ~~~~~~~~~~~~~~~~~~
drivers/hwtracing/gtrace/gtrace-core.c:581:3: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
581 | kfree(node);
| ^
drivers/hwtracing/gtrace/gtrace-core.c:598:9: error: call to undeclared function 'kzalloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
598 | path = kzalloc(sizeof(*path), GFP_KERNEL);
| ^
>> drivers/hwtracing/gtrace/gtrace-core.c:598:7: error: incompatible integer to pointer conversion assigning to 'struct gtrace_path *' from 'int' [-Wint-conversion]
598 | path = kzalloc(sizeof(*path), GFP_KERNEL);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/hwtracing/gtrace/gtrace-core.c:626:2: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
626 | kfree(path);
| ^
drivers/hwtracing/gtrace/gtrace-core.c:636:2: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
636 | kfree(path);
| ^
11 errors generated.
vim +/kzalloc_obj +561 drivers/hwtracing/gtrace/gtrace-core.c
547
548 static int build_path_walk_fn(struct gtrace_component *comp, bool *stop,
549 struct gtrace_connection *stop_conn,
550 void *priv)
551 {
552 struct build_path_walk_priv *ppriv = priv;
553 struct gtrace_path *path = ppriv->path;
554 struct gtrace_path_node *node;
555
556 if ((!ppriv->sink && gtrace_is_sink(comp->pdata)) ||
557 (ppriv->sink && ppriv->sink == comp))
558 *stop = true;
559
560 if (*stop) {
> 561 node = kzalloc_obj(*node);
562 if (!node)
563 return -ENOMEM;
564 INIT_LIST_HEAD(&node->head);
565 gtrace_get_component(comp);
566 node->comp = comp;
567 node->conn = stop_conn;
568 list_add(&node->head, &path->comp_list);
569 }
570
571 return 0;
572 }
573
574 static void gtrace_release_path_nodes(struct gtrace_path *path)
575 {
576 struct gtrace_path_node *node, *node1;
577
578 list_for_each_entry_safe(node, node1, &path->comp_list, head) {
579 list_del(&node->head);
580 gtrace_put_component(node->comp);
581 kfree(node);
582 }
583 }
584
585 struct gtrace_path *gtrace_create_path(struct gtrace_component *source,
586 struct gtrace_component *sink,
587 enum gtrace_component_mode mode)
588 {
589 struct build_path_walk_priv priv;
590 struct gtrace_path *path;
591 int ret = 0;
592
593 if (!source || mode >= GTRACE_COMPONENT_MODE_MAX) {
594 ret = -EINVAL;
595 goto err_out;
596 }
597
> 598 path = kzalloc(sizeof(*path), GFP_KERNEL);
599 if (!path) {
600 ret = -ENOMEM;
601 goto err_out;
602 }
603 INIT_LIST_HEAD(&path->comp_list);
604 path->mode = mode;
605 path->trace_id = GTRACE_INVALID_TRACE_ID;
606
607 priv.path = path;
608 priv.sink = sink;
609 ret = gtrace_walk_output_components(source, &priv, build_path_walk_fn);
610 if (ret < 0)
611 goto err_release_path_nodes;
612
613 if (!gtrace_path_ready(path)) {
614 ret = -EOPNOTSUPP;
615 goto err_release_path_nodes;
616 }
617
618 ret = gtrace_assign_trace_id(path);
619 if (ret < 0)
620 goto err_release_path_nodes;
621
622 return path;
623
624 err_release_path_nodes:
625 gtrace_release_path_nodes(path);
626 kfree(path);
627 err_out:
628 return ERR_PTR(ret);
629 }
630 EXPORT_SYMBOL_GPL(gtrace_create_path);
631
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-08-13 4:12 UTC|newest]
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