Hi Canfeng, kernel test robot noticed the following build errors: [auto build test ERROR on 805d849d7c3cc1f38efefd48b2480d62b7b5dcb7] url: https://github.com/intel-lab-lkp/linux/commits/Canfeng-Zhuang/misc-qualcomm-QRC-driver-for-Robotic-SDK-MCU/20240304-005601 base: 805d849d7c3cc1f38efefd48b2480d62b7b5dcb7 patch link: https://lore.kernel.org/r/20240304-qcom_qrc-v1-1-2a709f95fd61%40quicinc.com patch subject: [PATCH 1/2] misc: qualcomm: QRC driver for Robotic SDK MCU config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20240304/202403040831.fk22ur0f-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240304/202403040831.fk22ur0f-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403040831.fk22ur0f-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/misc/qrc/qrc_uart.c:83:24: error: initialization of 'ssize_t (*)(struct serdev_device *, const u8 *, size_t)' {aka 'long int (*)(struct serdev_device *, const unsigned char *, long unsigned int)'} from incompatible pointer type 'int (*)(struct serdev_device *, const unsigned char *, size_t)' {aka 'int (*)(struct serdev_device *, const unsigned char *, long unsigned int)'} [-Werror=incompatible-pointer-types] 83 | .receive_buf = qrc_uart_receive, | ^~~~~~~~~~~~~~~~ drivers/misc/qrc/qrc_uart.c:83:24: note: (near initialization for 'qrc_serdev_ops.receive_buf') cc1: some warnings being treated as errors vim +83 drivers/misc/qrc/qrc_uart.c 81 82 static struct serdev_device_ops qrc_serdev_ops = { > 83 .receive_buf = qrc_uart_receive, 84 .write_wakeup = qrc_uart_wakeup, 85 }; 86 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
