Hi Baolin, [auto build test ERROR on wsa/i2c/for-next] [also build test ERROR on v4.12-rc6 next-20170623] [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/Baolin-Wang/dt-bindings-i2c-Add-Spreadtrum-I2C-controller-documentation/20170622-111344 base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next config: arm64-allmodconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm64 All errors (new ones prefixed by >>): drivers/i2c/busses/i2c-sprd.c:686:1: warning: data definition has no type or storage class arch_initcall_sync(sprd_i2c_init); ^~~~~~~~~~~~~~~~~~ >> drivers/i2c/busses/i2c-sprd.c:686:1: error: type defaults to 'int' in declaration of 'arch_initcall_sync' [-Werror=implicit-int] drivers/i2c/busses/i2c-sprd.c:686:1: warning: parameter names (without types) in function declaration drivers/i2c/busses/i2c-sprd.c:682:12: warning: 'sprd_i2c_init' defined but not used [-Wunused-function] static int sprd_i2c_init(void) ^~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +686 drivers/i2c/busses/i2c-sprd.c 680 }; 681 682 static int sprd_i2c_init(void) 683 { 684 return platform_driver_register(&sprd_i2c_driver); 685 } > 686 arch_initcall_sync(sprd_i2c_init); 687 688 static void sprd_i2c_exit(void) 689 { --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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