Hi Michal, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v6.14-rc5 next-20250305] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Michal-Wilczynski/dt-bindings-firmware-thead-th1520-Add-support-for-firmware-node/20250303-230224 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20250303145901.446791-3-m.wilczynski%40samsung.com patch subject: [PATCH v1 2/5] firmware: thead: Add AON firmware protocol driver config: arc-allmodconfig (https://download.01.org/0day-ci/archive/20250306/202503060707.a8CwuQbH-lkp@xxxxxxxxx/config) compiler: arceb-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250306/202503060707.a8CwuQbH-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/202503060707.a8CwuQbH-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/firmware/thead,th1520-aon.c: In function 'th1520_aon_init': drivers/firmware/thead,th1520-aon.c:206:20: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] 206 | aon_chan = kzalloc(sizeof(*aon_chan), GFP_KERNEL); | ^~~~~~~ >> drivers/firmware/thead,th1520-aon.c:206:18: warning: assignment to 'struct th1520_aon_chan *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 206 | aon_chan = kzalloc(sizeof(*aon_chan), GFP_KERNEL); | ^ drivers/firmware/thead,th1520-aon.c:219:17: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration] 219 | kfree(aon_chan); | ^~~~~ cc1: some warnings being treated as errors vim +206 drivers/firmware/thead,th1520-aon.c 185 186 /** 187 * th1520_aon_init() - Initialize TH1520 AON firmware protocol interface 188 * @dev: Device pointer for the AON subsystem 189 * 190 * This function initializes the TH1520 AON firmware protocol interface by: 191 * - Allocating and initializing the AON channel structure 192 * - Setting up the mailbox client 193 * - Requesting the AON mailbox channel 194 * - Initializing synchronization primitives 195 * 196 * Return: 197 * * Valid pointer to th1520_aon_chan structure on success 198 * * ERR_PTR(-ENOMEM) if memory allocation fails 199 * * ERR_PTR() with other negative error codes from mailbox operations 200 */ 201 struct th1520_aon_chan *th1520_aon_init(struct device *dev) 202 { 203 struct th1520_aon_chan *aon_chan; 204 struct mbox_client *cl; 205 > 206 aon_chan = kzalloc(sizeof(*aon_chan), GFP_KERNEL); 207 if (!aon_chan) 208 return ERR_PTR(-ENOMEM); 209 210 cl = &aon_chan->cl; 211 cl->dev = dev; 212 cl->tx_block = true; 213 cl->tx_tout = MAX_TX_TIMEOUT; 214 cl->rx_callback = th1520_aon_rx_callback; 215 216 aon_chan->ch = mbox_request_channel_byname(cl, "aon"); 217 if (IS_ERR(aon_chan->ch)) { 218 dev_err(dev, "Failed to request aon mbox chan\n"); 219 kfree(aon_chan); 220 return ERR_CAST(aon_chan->ch); 221 } 222 223 mutex_init(&aon_chan->transaction_lock); 224 init_completion(&aon_chan->done); 225 226 return aon_chan; 227 } 228 EXPORT_SYMBOL_GPL(th1520_aon_init); 229 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
