Hi YueHaibing, Thank you for the patch! Yet something to improve: [auto build test ERROR on pinctrl/devel] [also build test ERROR on v4.18-rc7 next-20180731] [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/YueHaibing/pinctrl-berlin-fix-pctrl-functions-allocation-in-berlin_pinctrl_build_state/20180801-131813 base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel config: xtensa-allyesconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 8.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=8.1.0 make.cross ARCH=xtensa All errors (new ones prefixed by >>): drivers/pinctrl/berlin/berlin.c: In function 'berlin_pinctrl_build_state': >> drivers/pinctrl/berlin/berlin.c:259:5: error: too few arguments to function 'kfree' kfree( ); ^~~~~ In file included from drivers/pinctrl/berlin/berlin.c:20: include/linux/slab.h:183:6: note: declared here void kfree(const void *); ^~~~~ vim +/kfree +259 drivers/pinctrl/berlin/berlin.c 202 203 static int berlin_pinctrl_build_state(struct platform_device *pdev) 204 { 205 struct berlin_pinctrl *pctrl = platform_get_drvdata(pdev); 206 const struct berlin_desc_group *desc_group; 207 const struct berlin_desc_function *desc_function; 208 int i, max_functions = 0; 209 210 pctrl->nfunctions = 0; 211 212 for (i = 0; i < pctrl->desc->ngroups; i++) { 213 desc_group = pctrl->desc->groups + i; 214 /* compute the maxiumum number of functions a group can have */ 215 max_functions += 1 << (desc_group->bit_width + 1); 216 } 217 218 /* we will reallocate later */ 219 pctrl->functions = kcalloc(max_functions, 220 sizeof(*pctrl->functions), GFP_KERNEL); 221 if (!pctrl->functions) 222 return -ENOMEM; 223 224 /* register all functions */ 225 for (i = 0; i < pctrl->desc->ngroups; i++) { 226 desc_group = pctrl->desc->groups + i; 227 desc_function = desc_group->functions; 228 229 while (desc_function->name) { 230 berlin_pinctrl_add_function(pctrl, desc_function->name); 231 desc_function++; 232 } 233 } 234 235 pctrl->functions = krealloc(pctrl->functions, 236 pctrl->nfunctions * sizeof(*pctrl->functions), 237 GFP_KERNEL); 238 239 /* map functions to theirs groups */ 240 for (i = 0; i < pctrl->desc->ngroups; i++) { 241 desc_group = pctrl->desc->groups + i; 242 desc_function = desc_group->functions; 243 244 while (desc_function->name) { 245 struct berlin_pinctrl_function 246 *function = pctrl->functions; 247 const char **groups; 248 bool found = false; 249 250 while (function->name) { 251 if (!strcmp(desc_function->name, function->name)) { 252 found = true; 253 break; 254 } 255 function++; 256 } 257 258 if (!found) { > 259 kfree( ); 260 return -EINVAL; 261 } 262 263 if (!function->groups) { 264 function->groups = 265 devm_kcalloc(&pdev->dev, 266 function->ngroups, 267 sizeof(char *), 268 GFP_KERNEL); 269 270 if (!function->groups) { 271 kfree(pctrl->functions); 272 return -ENOMEM; 273 } 274 } 275 276 groups = function->groups; 277 while (*groups) 278 groups++; 279 280 *groups = desc_group->name; 281 282 desc_function++; 283 } 284 } 285 286 return 0; 287 } 288 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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