Hi Elson, kernel test robot noticed the following build warnings: [auto build test WARNING on usb/usb-testing] [also build test WARNING on usb/usb-next usb/usb-linus linus/master v6.4-rc1 next-20230511] [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/Elson-Roy-Serrao/usb-function-u_ether-Handle-rx-requests-during-suspend-resume/20230512-015036 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing patch link: https://lore.kernel.org/r/1683827311-1462-2-git-send-email-quic_eserrao%40quicinc.com patch subject: [PATCH 1/2] usb: function: u_ether: Handle rx requests during suspend/resume config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230512/202305120311.KEGxEo2Z-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/90c8743982bad3c71cd13e366efa6b596dd24120 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Elson-Roy-Serrao/usb-function-u_ether-Handle-rx-requests-during-suspend-resume/20230512-015036 git checkout 90c8743982bad3c71cd13e366efa6b596dd24120 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/usb/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202305120311.KEGxEo2Z-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/usb/gadget/function/u_ether.c: In function 'ether_wakeup_work': >> drivers/usb/gadget/function/u_ether.c:442:33: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 442 | int ret; | ^~~ drivers/usb/gadget/function/u_ether.c: In function 'gether_suspend': >> drivers/usb/gadget/function/u_ether.c:1049:13: warning: variable 'status' set but not used [-Wunused-but-set-variable] 1049 | int status; | ^~~~~~ vim +/ret +442 drivers/usb/gadget/function/u_ether.c 2b3d942c487808 drivers/usb/gadget/u_ether.c David Brownell 2008-06-19 439 90c8743982bad3 drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-05-11 440 static void ether_wakeup_work(struct work_struct *w) 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 441 { 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 @442 int ret; 90c8743982bad3 drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-05-11 443 struct eth_dev *dev = container_of(w, struct eth_dev, wakeup_work); 90c8743982bad3 drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-05-11 444 struct gether *port = dev->port_usb; 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 445 struct usb_function *func = &port->func; 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 446 struct usb_gadget *gadget = func->config->cdev->gadget; 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 447 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 448 if (func->func_suspended) 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 449 ret = usb_func_wakeup(func); 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 450 else 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 451 ret = usb_gadget_wakeup(gadget); 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 452 } 0a1af6dfa0772f drivers/usb/gadget/function/u_ether.c Elson Roy Serrao 2023-03-24 453 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
