tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 187b9ac8c348383f7f36c8413d73ad89e9b1e90a commit: 8c1fb11b8a77dc489a8ef6d96c38c1297b629d06 [2105/11360] ARM: s3c: enable s3c24xx multiplatform support config: arm-buildonly-randconfig-r004-20220512 (https://download.01.org/0day-ci/archive/20220513/202205131303.oqcXJ1Rl-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 18dd123c56754edf62c7042dcf23185c3727610f) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=8c1fb11b8a77dc489a8ef6d96c38c1297b629d06 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 8c1fb11b8a77dc489a8ef6d96c38c1297b629d06 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> arch/arm/mach-omap1/serial.c:236:12: warning: no previous prototype for function 'omap_serial_wakeup_init' [-Wmissing-prototypes] int __init omap_serial_wakeup_init(void) ^ arch/arm/mach-omap1/serial.c:236:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __init omap_serial_wakeup_init(void) ^ static 1 warning generated. vim +/omap_serial_wakeup_init +236 arch/arm/mach-omap1/serial.c 7c38cf021b42a4 Tony Lindgren 2005-09-08 235 82c3bd03535f15 Shawn Guo 2012-04-26 @236 int __init omap_serial_wakeup_init(void) 7c38cf021b42a4 Tony Lindgren 2005-09-08 237 { 7c38cf021b42a4 Tony Lindgren 2005-09-08 238 if (!cpu_is_omap16xx()) 7c38cf021b42a4 Tony Lindgren 2005-09-08 239 return 0; 7c38cf021b42a4 Tony Lindgren 2005-09-08 240 7c38cf021b42a4 Tony Lindgren 2005-09-08 241 if (uart1_ck != NULL) 7c38cf021b42a4 Tony Lindgren 2005-09-08 242 omap_serial_set_port_wakeup(37); 7c38cf021b42a4 Tony Lindgren 2005-09-08 243 if (uart2_ck != NULL) 7c38cf021b42a4 Tony Lindgren 2005-09-08 244 omap_serial_set_port_wakeup(18); 7c38cf021b42a4 Tony Lindgren 2005-09-08 245 if (uart3_ck != NULL) 7c38cf021b42a4 Tony Lindgren 2005-09-08 246 omap_serial_set_port_wakeup(49); 7c38cf021b42a4 Tony Lindgren 2005-09-08 247 7c38cf021b42a4 Tony Lindgren 2005-09-08 248 return 0; 7c38cf021b42a4 Tony Lindgren 2005-09-08 249 } 7c38cf021b42a4 Tony Lindgren 2005-09-08 250 :::::: The code at line 236 was first introduced by commit :::::: 82c3bd03535f1571426fdd19b7d832f76b7ac85e ARM: omap1: use machine specific hook for late init :::::: TO: Shawn Guo <shawn.guo@xxxxxxxxxx> :::::: CC: Shawn Guo <shawn.guo@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp
