Hi Linyu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on usb/usb-testing] [also build test WARNING on peter.chen-usb/for-usb-next next-20210902] [cannot apply to balbi-usb/testing/next v5.14] [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/Linyu-Yuan/usb-gadget-configfs-add-some-trace-event/20210902-211519 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing config: hexagon-randconfig-r045-20210901 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c9948e9254fbb6ea00f66c7b4542311d21e060be) 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/855bbfeebfb8ad0859f690047753221b635d391a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Linyu-Yuan/usb-gadget-configfs-add-some-trace-event/20210902-211519 git checkout 855bbfeebfb8ad0859f690047753221b635d391a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=hexagon If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/usb/gadget/configfs.c:1203:26: warning: variable 'cfg' set but not used [-Wunused-but-set-variable] struct config_usb_cfg *cfg; ^ 1 warning generated. vim +/cfg +1203 drivers/usb/gadget/configfs.c 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1190 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1191 int composite_dev_prepare(struct usb_composite_driver *composite, 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1192 struct usb_composite_dev *dev); 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1193 da4243145fb197 Andrzej Pietrasiewicz 2014-05-08 1194 int composite_os_desc_req_prepare(struct usb_composite_dev *cdev, da4243145fb197 Andrzej Pietrasiewicz 2014-05-08 1195 struct usb_ep *ep0); da4243145fb197 Andrzej Pietrasiewicz 2014-05-08 1196 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1197 static void purge_configs_funcs(struct gadget_info *gi) 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1198 { 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1199 struct usb_configuration *c; 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1200 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1201 list_for_each_entry(c, &gi->cdev.configs, list) { 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1202 struct usb_function *f, *tmp; 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 @1203 struct config_usb_cfg *cfg; 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1204 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1205 cfg = container_of(c, struct config_usb_cfg, c); 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1206 6cd0fe91387917 Chandana Kishori Chiluveru 2020-12-29 1207 list_for_each_entry_safe_reverse(f, tmp, &c->functions, list) { 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1208 855bbfeebfb8ad Linyu Yuan 2021-09-02 1209 list_del(&f->list); 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1210 if (f->unbind) { da7b895d518cc1 Romain Izard 2016-08-29 1211 dev_dbg(&gi->cdev.gadget->dev, a08f5dbf877a45 Romain Izard 2016-07-26 1212 "unbind function '%s'/%p\n", a08f5dbf877a45 Romain Izard 2016-07-26 1213 f->name, f); 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1214 f->unbind(c, f); 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1215 } 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1216 } 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1217 c->next_interface_id = 0; 903124fe1aa284 Krzysztof Opasiak 2015-03-20 1218 memset(c->interface, 0, sizeof(c->interface)); 554eead5436401 John Youn 2016-02-05 1219 c->superspeed_plus = 0; 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1220 c->superspeed = 0; 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1221 c->highspeed = 0; 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1222 c->fullspeed = 0; 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1223 } 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1224 } 88af8bbe4ef781 Sebastian Andrzej Siewior 2012-12-23 1225 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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