Hi "周琰杰, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on v5.14-rc2 next-20210723] [cannot apply to remoteproc/for-next rpmsg/for-next] [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] url: https://github.com/0day-ci/linux/commits/Zhou-Yanjie/Add-VPU-support-for-... base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: sparc-allyesconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 10.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/288ce023c75dca6dd232f6166be5a07d5... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Zhou-Yanjie/Add-VPU-support-for-new-Ingenic-SoCs/20210724-171238 git checkout 288ce023c75dca6dd232f6166be5a07d5532aad7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=sparc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/remoteproc/ingenic_rproc.c: In function 'ingenic_rproc_probe': drivers/remoteproc/ingenic_rproc.c:256:18: error: implicit declaration of function 'kzalloc'; did you mean 'kvzalloc'? [-Werror=implicit-function-declaration] 256 | vpu->mem_info = kzalloc(sizeof(struct vpu_mem_info) * vpu->soc_info->num_mems, GFP_KERNEL); | ^~~~~~~ | kvzalloc 256 | vpu->mem_info = kzalloc(sizeof(struct vpu_mem_info) * vpu->soc_info->num_mems, GFP_KERNEL); | ^ 275 | vpu->clks = kzalloc(sizeof(struct clk_bulk_data) * vpu->soc_info->num_clks, GFP_KERNEL); | ^ cc1: some warnings being treated as errors vim +256 drivers/remoteproc/ingenic_rproc.c 226 227 static int ingenic_rproc_probe(struct platform_device *pdev) 228 { 229 const struct of_device_id *id = of_match_node(ingenic_rproc_of_matches, pdev->dev.of_node); 230 struct device *dev = &pdev->dev; 231 struct resource *mem; 232 struct rproc *rproc; 233 struct vpu *vpu; 234 unsigned int i; 235 int ret; 236 237 rproc = devm_rproc_alloc(dev, "ingenic-vpu", 238 &ingenic_rproc_ops, NULL, sizeof(*vpu)); 239 if (!rproc) 240 return -ENOMEM; 241 242 rproc->auto_boot = auto_boot; 243 244 vpu = rproc->priv; 245 vpu->dev = &pdev->dev; 246 vpu->soc_info = id->data; 247 platform_set_drvdata(pdev, vpu); 248 249 mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "aux"); 250 vpu->aux_base = devm_ioremap_resource(dev, mem); 251 if (IS_ERR(vpu->aux_base)) { 252 dev_err(dev, "Failed to ioremap\n"); 253 return PTR_ERR(vpu->aux_base); 254 } 255 257 if (!vpu->mem_info) 258 return -ENOMEM; 259 260 for (i = 0; i < vpu->soc_info->num_mems; i++) { 261 mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, 262 vpu->soc_info->mem_map[i].name); 263 264 vpu->mem_info[i].base = devm_ioremap_resource(dev, mem); 265 if (IS_ERR(vpu->mem_info[i].base)) { 266 ret = PTR_ERR(vpu->mem_info[i].base); 267 dev_err(dev, "Failed to ioremap\n"); 268 return ret; 269 } 270 271 vpu->mem_info[i].len = resource_size(mem); 272 vpu->mem_info[i].map = &vpu->soc_info->mem_map[i]; 273 } 274 276 if (!vpu->clks) 277 return -ENOMEM; 278 279 vpu->clks[0].id = "vpu"; 280 281 if (vpu->soc_info->version == ID_JZ4770) 282 vpu->clks[1].id = "aux"; 283 284 ret = devm_clk_bulk_get(dev, vpu->soc_info->num_clks, vpu->clks); 285 if (ret) { 286 dev_err(dev, "Failed to get clocks\n"); 287 return ret; 288 } 289 290 vpu->irq = platform_get_irq(pdev, 0); 291 if (vpu->irq < 0) 292 return vpu->irq; 293 294 ret = devm_request_irq(dev, vpu->irq, vpu_interrupt, 0, "VPU", rproc); 295 if (ret < 0) { 296 dev_err(dev, "Failed to request IRQ\n"); 297 return ret; 298 } 299 300 disable_irq(vpu->irq); 301 302 ret = devm_rproc_add(dev, rproc); 303 if (ret) { 304 dev_err(dev, "Failed to register remote processor\n"); 305 return ret; 306 } 307 308 return 0; 309 } 310 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org