Hi Bhumika, [auto build test WARNING on pm/linux-next] [also build test WARNING on v4.14-rc4 next-20171013] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Bhumika-Goyal/ACPI-configfs-make-config_item_type-const/20171015-153321 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: x86_64-randconfig-x018-201742 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/acpi/acpi_configfs.c: In function 'acpi_table_make_item': >> drivers/acpi/acpi_configfs.c:222:48: warning: passing argument 3 of 'config_item_init_type_name' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] config_item_init_type_name(&table->cfg, name, &acpi_table_type); ^ In file included from drivers/acpi/acpi_configfs.c:15:0: include/linux/configfs.h:73:13: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *' extern void config_item_init_type_name(struct config_item *item, ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/acpi/acpi_configfs.c: At top level: >> drivers/acpi/acpi_configfs.c:253:15: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] .ci_type = &acpi_root_group_type, ^ drivers/acpi/acpi_configfs.c: In function 'acpi_configfs_init': >> drivers/acpi/acpi_configfs.c:271:11: warning: passing argument 3 of 'configfs_register_default_group' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] &acpi_tables_type); ^ In file included from drivers/acpi/acpi_configfs.c:15:0: include/linux/configfs.h:262:1: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *' configfs_register_default_group(struct config_group *parent_group, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +222 drivers/acpi/acpi_configfs.c 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 212 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 213 static struct config_item *acpi_table_make_item(struct config_group *group, 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 214 const char *name) 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 215 { 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 216 struct acpi_table *table; 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 217 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 218 table = kzalloc(sizeof(*table), GFP_KERNEL); 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 219 if (!table) 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 220 return ERR_PTR(-ENOMEM); 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 221 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 @222 config_item_init_type_name(&table->cfg, name, &acpi_table_type); 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 223 return &table->cfg; 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 224 } 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 225 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 226 static void acpi_table_drop_item(struct config_group *group, 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 227 struct config_item *cfg) 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 228 { 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 229 struct acpi_table *table = container_of(cfg, struct acpi_table, cfg); 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 230 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 231 ACPI_INFO(("Host-directed Dynamic ACPI Table Unload")); 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 232 acpi_tb_unload_table(table->index); 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 233 } 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 234 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 235 struct configfs_group_operations acpi_table_group_ops = { 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 236 .make_item = acpi_table_make_item, 772bf1e2 drivers/acpi/acpi_configfs.c Jan Kiszka 2017-06-09 237 .drop_item = acpi_table_drop_item, 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 238 }; 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 239 39f59af3 drivers/acpi/acpi_configfs.c Bhumika Goyal 2017-10-12 240 static const struct config_item_type acpi_tables_type = { 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 241 .ct_owner = THIS_MODULE, 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 242 .ct_group_ops = &acpi_table_group_ops, 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 243 }; 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 244 39f59af3 drivers/acpi/acpi_configfs.c Bhumika Goyal 2017-10-12 245 static const struct config_item_type acpi_root_group_type = { 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 246 .ct_owner = THIS_MODULE, 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 247 }; 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 248 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 249 static struct configfs_subsystem acpi_configfs = { 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 250 .su_group = { 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 251 .cg_item = { 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 252 .ci_namebuf = "acpi", 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 @253 .ci_type = &acpi_root_group_type, 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 254 }, 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 255 }, 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 256 .su_mutex = __MUTEX_INITIALIZER(acpi_configfs.su_mutex), 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 257 }; 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 258 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 259 static int __init acpi_configfs_init(void) 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 260 { 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 261 int ret; 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 262 struct config_group *root = &acpi_configfs.su_group; 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 263 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 264 config_group_init(root); 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 265 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 266 ret = configfs_register_subsystem(&acpi_configfs); 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 267 if (ret) 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 268 return ret; 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 269 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 270 acpi_table_group = configfs_register_default_group(root, "table", 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 @271 &acpi_tables_type); 612bd01f drivers/acpi/configfs.c Octavian Purdila 2016-07-08 272 return PTR_ERR_OR_ZERO(acpi_table_group); 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 273 } 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 274 module_init(acpi_configfs_init); 0bf54fcd drivers/acpi/configfs.c Octavian Purdila 2016-07-08 275 :::::: The code at line 222 was first introduced by commit :::::: 612bd01fc6e04c3ce9eb59587b4a7e4ebd6aff35 ACPI: add support for loading SSDTs via configfs :::::: TO: Octavian Purdila <octavian.purdila@xxxxxxxxx> :::::: CC: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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