Hi Alvin, kernel test robot noticed the following build errors: [auto build test ERROR on c75962170e49f24399141276ae119e6a879f36dc] url: https://github.com/intel-lab-lkp/linux/commits/Alvin-ipraga/a2b-add-A2B-driver-core/20240517-211849 base: c75962170e49f24399141276ae119e6a879f36dc patch link: https://lore.kernel.org/r/20240517-a2b-v1-1-b8647554c67b%40bang-olufsen.dk patch subject: [PATCH 01/13] a2b: add A2B driver core config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20240518/202405182008.zWMVYQ6g-lkp@xxxxxxxxx/config) compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240518/202405182008.zWMVYQ6g-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405182008.zWMVYQ6g-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): drivers/a2b/a2b.c: In function 'a2b_bus_of_add_node': >> drivers/a2b/a2b.c:463:16: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] 463 | node = kzalloc(sizeof(*node), GFP_KERNEL); | ^~~~~~~ >> drivers/a2b/a2b.c:463:14: warning: assignment to 'struct a2b_node *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 463 | node = kzalloc(sizeof(*node), GFP_KERNEL); | ^ drivers/a2b/a2b.c: In function 'a2b_node_of_add_func': >> drivers/a2b/a2b.c:1017:14: warning: assignment to 'struct a2b_func *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1017 | func = kzalloc(sizeof(*func), GFP_KERNEL); | ^ drivers/a2b/a2b.c: In function 'a2b_node_release': >> drivers/a2b/a2b.c:1112:9: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration] 1112 | kfree(node); | ^~~~~ cc1: some warnings being treated as errors vim +/kzalloc +463 drivers/a2b/a2b.c 444 445 static int a2b_bus_of_add_node(struct a2b_bus *bus, struct device_node *np, 446 unsigned int addr) 447 { 448 struct a2b_node *node; 449 int ret = 0; 450 451 if (!bus || !np) 452 return -EINVAL; 453 454 if (addr >= A2B_MAX_NODES) 455 return -EINVAL; 456 457 if (!of_device_is_available(np)) 458 return -ENODEV; 459 460 if (of_node_test_and_set_flag(np, OF_POPULATED)) 461 return -EBUSY; 462 > 463 node = kzalloc(sizeof(*node), GFP_KERNEL); 464 if (IS_ERR(node)) 465 return -ENOMEM; 466 467 node->dev.bus = &a2b_bus; 468 node->dev.type = &a2b_node_type; 469 node->dev.parent = &bus->dev; 470 node->dev.of_node = np; 471 node->dev.fwnode = of_fwnode_handle(np); 472 dev_set_name(&node->dev, "a2b-%d.%d", bus->id, addr); 473 474 node->bus = bus; 475 node->addr = addr; 476 477 /* 478 * Register the node device. Note that due to asynchronous probing, 479 * there is no guarantee that the node driver's probe function has been 480 * called just yet. The synchronization point is a2b_register_node(), 481 * which should be called unconditionally by node drivers. 482 */ 483 ret = device_register(&node->dev); 484 if (ret) 485 goto err_put_device; 486 487 return 0; 488 489 err_put_device: 490 put_device(&node->dev); 491 492 return ret; 493 } 494 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
