[avpatel:riscv_trace_acpi_support_v1 67/87] drivers/hwtracing/gtrace/gtrace-core.c:359:15: warning: assignment to 'struct gtrace_comp_priv *' from 'int' makes pointer from integer without a cast

[avpatel:riscv_trace_acpi_support_v1 67/87] drivers/hwtracing/gtrace/gtrace-core.c:359:15: warning: assignment to 'struct gtrace_comp_priv *' from 'int' makes pointer from integer without a cast

[kernel test robot]

tree:   https://github.com/avpatel/linux.git riscv_trace_acpi_support_v1
head:   dc5b9586f90cc15314085bdaa74661fc00d1688f
commit: 9d884d22932da958867424488aadb1ed67681c24 [67/87] hwtracing: gtrace: Initial implementation of gtrace framework
config: xtensa-randconfig-2001-20261002 (https://download.01.org/0day-ci/archive/20261002/202610020320.0z7YevLG-lkp@intel.com/config)
compiler: xtensa-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261002/202610020320.0z7YevLG-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/202610020320.0z7YevLG-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/hwtracing/gtrace/gtrace-core.c: In function 'gtrace_component_release':
   drivers/hwtracing/gtrace/gtrace-core.c:315:9: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration]
     315 |         kfree(cpriv);
         |         ^~~~~
   drivers/hwtracing/gtrace/gtrace-core.c: In function 'gtrace_register_component':
   drivers/hwtracing/gtrace/gtrace-core.c:359:17: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration]
     359 |         cpriv = kzalloc(sizeof(*cpriv), GFP_KERNEL);
         |                 ^~~~~~~
>> drivers/hwtracing/gtrace/gtrace-core.c:359:15: warning: assignment to 'struct gtrace_comp_priv *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     359 |         cpriv = kzalloc(sizeof(*cpriv), GFP_KERNEL);
         |               ^
   cc1: some warnings being treated as errors


vim +359 drivers/hwtracing/gtrace/gtrace-core.c

   317	
   318	struct gtrace_component *gtrace_register_component(struct gtrace_component_id *id,
   319							   const char *name,
   320							   struct gtrace_platform_data *pdata)
   321	{
   322		struct gtrace_connection *conn;
   323		struct gtrace_component *comp;
   324		struct gtrace_comp_priv *cpriv;
   325		int i, ret = 0;
   326	
   327		if (!id || id->type >= GTRACE_COMPONENT_TYPE_MAX) {
   328			ret = -EINVAL;
   329			goto err_out;
   330		}
   331	
   332		if (!pdata || !pdata->dev) {
   333			ret = -EINVAL;
   334			goto err_out;
   335		}
   336	
   337		for (i = 0; i < pdata->nr_inconns; i++) {
   338			if (pdata->inconns[i]) {
   339				ret = -EINVAL;
   340				goto err_out;
   341			}
   342		}
   343	
   344		for (i = 0; i < pdata->nr_outconns; i++) {
   345			conn = pdata->outconns[i];
   346			if (!conn || conn->src_port < 0 || conn->src_comp ||
   347			    !device_match_fwnode(pdata->dev, conn->src_fwnode) ||
   348			    conn->dest_port < 0 || !conn->dest_fwnode || !conn->dest_comp) {
   349				ret = -EINVAL;
   350				goto err_out;
   351			}
   352		}
   353	
   354		if (pdata->bound_cpu >= 0 && !cpu_present(pdata->bound_cpu)) {
   355			ret = -EINVAL;
   356			goto err_out;
   357		}
   358	
 > 359		cpriv = kzalloc(sizeof(*cpriv), GFP_KERNEL);
   360		if (!cpriv) {
   361			ret = -ENOMEM;
   362			goto err_out;
   363		}
   364		comp = &cpriv->comp;
   365		comp->pdata = pdata;
   366		comp->id = *id;
   367		ret = gtrace_alloc_type_idx(comp);
   368		if (ret) {
   369			kfree(cpriv);
   370			goto err_out;
   371		}
   372	
   373		comp->dev.parent = pdata->dev;
   374		comp->dev.coherent_dma_mask = pdata->dev->coherent_dma_mask;
   375		comp->dev.release = gtrace_component_release;
   376		comp->dev.bus = &gtrace_bustype;
   377		comp->dev.fwnode = fwnode_handle_get(dev_fwnode(pdata->dev));
   378		dev_set_name(&comp->dev, "%s-%u", name ? name : "comp", cpriv->type_idx);
   379	
   380		mutex_lock(&gtrace_mutex);
   381	
   382		ret = device_register(&comp->dev);
   383		if (ret) {
   384			put_device(&comp->dev);
   385			goto err_out_unlock;
   386		}
   387	
   388		for (i = 0; i < pdata->nr_outconns; i++) {
   389			conn = pdata->outconns[i];
   390			conn->src_comp = comp;
   391		}
   392	
   393		ret = gtrace_setup_inconns_from_outconns(comp);
   394		if (ret < 0) {
   395			device_unregister(&comp->dev);
   396			goto err_out_unlock;
   397		}
   398	
   399		if (comp->pdata->bound_cpu >= 0) {
   400			gtrace_get_component(comp);
   401			per_cpu(gtrace_cpu_source_comp, comp->pdata->bound_cpu) = comp;
   402		}
   403	
   404		mutex_unlock(&gtrace_mutex);
   405	
   406		return comp;
   407	
   408	err_out_unlock:
   409		mutex_unlock(&gtrace_mutex);
   410	err_out:
   411		return ERR_PTR(ret);
   412	}
   413	EXPORT_SYMBOL_GPL(gtrace_register_component);
   414	

--
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https://github.com/intel/lkp-tests/wiki