Hi, I love your patch! Yet something to improve: [auto build test ERROR on sparc-next/master] [also build test ERROR on linus/master v5.8 next-20200731] [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/yzc666-netease-com/qmi_wwan-support-modify-usbnet-s-rx_urb_size/20200803-152459 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next.git master config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/net/usb/qmi_wwan.c:546:3: error: 'dev_attr_rx_urb_size' undeclared here (not in a function) 546 | &dev_attr_rx_urb_size.attr, | ^~~~~~~~~~~~~~~~~~~~ drivers/net/usb/qmi_wwan.c:410:16: warning: 'rx_urb_size_store' defined but not used [-Wunused-function] 410 | static ssize_t rx_urb_size_store(struct device *d, struct device_attribute *attr, | ^~~~~~~~~~~~~~~~~ drivers/net/usb/qmi_wwan.c:403:16: warning: 'rx_urb_size_show' defined but not used [-Wunused-function] 403 | static ssize_t rx_urb_size_show(struct device *d, struct device_attribute *attr, char *buf) | ^~~~~~~~~~~~~~~~ vim +/dev_attr_rx_urb_size +546 drivers/net/usb/qmi_wwan.c 544 545 static struct attribute *qmi_wwan_sysfs_attrs[] = { > 546 &dev_attr_rx_urb_size.attr, 547 &dev_attr_raw_ip.attr, 548 &dev_attr_add_mux.attr, 549 &dev_attr_del_mux.attr, 550 NULL, 551 }; 552 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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