Hi Russell, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f40ddce88593482919761f74910f42f4b84c004b commit: c281634c865202e2776b0250678ff93c771947ff ARM: compat: remove KERNEL_DS usage in sys_oabi_epoll_ctl() date: 10 months ago config: arm-randconfig-r024-20210220 (attached as .config) compiler: arm-linux-gnueabi-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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c281634c865202e2776b0250678ff93c771947ff git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout c281634c865202e2776b0250678ff93c771947ff # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): arch/arm/kernel/sys_oabi-compat.c:142:17: warning: no previous prototype for 'sys_oabi_stat64' [-Wmissing-prototypes] 142 | asmlinkage long sys_oabi_stat64(const char __user * filename, | ^~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:152:17: warning: no previous prototype for 'sys_oabi_lstat64' [-Wmissing-prototypes] 152 | asmlinkage long sys_oabi_lstat64(const char __user * filename, | ^~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:162:17: warning: no previous prototype for 'sys_oabi_fstat64' [-Wmissing-prototypes] 162 | asmlinkage long sys_oabi_fstat64(unsigned long fd, | ^~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:172:17: warning: no previous prototype for 'sys_oabi_fstatat64' [-Wmissing-prototypes] 172 | asmlinkage long sys_oabi_fstatat64(int dfd, | ^~~~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:229:17: warning: no previous prototype for 'sys_oabi_fcntl64' [-Wmissing-prototypes] 229 | asmlinkage long sys_oabi_fcntl64(unsigned int fd, unsigned int cmd, | ^~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:251:17: warning: no previous prototype for 'sys_oabi_epoll_ctl' [-Wmissing-prototypes] 251 | asmlinkage long sys_oabi_epoll_ctl(int epfd, int op, int fd, | ^~~~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c: In function 'sys_oabi_epoll_ctl': >> arch/arm/kernel/sys_oabi-compat.c:257:6: error: implicit declaration of >> function 'ep_op_has_event' [-Werror=implicit-function-declaration] 257 | if (ep_op_has_event(op) && | ^~~~~~~~~~~~~~~ >> arch/arm/kernel/sys_oabi-compat.c:264:9: error: implicit declaration of >> function 'do_epoll_ctl'; did you mean 'sys_epoll_ctl'? >> [-Werror=implicit-function-declaration] 264 | return do_epoll_ctl(epfd, op, fd, &kernel, false); | ^~~~~~~~~~~~ | sys_epoll_ctl arch/arm/kernel/sys_oabi-compat.c: At top level: arch/arm/kernel/sys_oabi-compat.c:267:17: warning: no previous prototype for 'sys_oabi_epoll_wait' [-Wmissing-prototypes] 267 | asmlinkage long sys_oabi_epoll_wait(int epfd, | ^~~~~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:309:17: warning: no previous prototype for 'sys_oabi_semtimedop' [-Wmissing-prototypes] 309 | asmlinkage long sys_oabi_semtimedop(int semid, | ^~~~~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:352:17: warning: no previous prototype for 'sys_oabi_semop' [-Wmissing-prototypes] 352 | asmlinkage long sys_oabi_semop(int semid, struct oabi_sembuf __user *tsops, | ^~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:358:16: warning: no previous prototype for 'sys_oabi_ipc' [-Wmissing-prototypes] 358 | asmlinkage int sys_oabi_ipc(uint call, int first, int second, int third, | ^~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:376:17: warning: no previous prototype for 'sys_oabi_bind' [-Wmissing-prototypes] 376 | asmlinkage long sys_oabi_bind(int fd, struct sockaddr __user *addr, int addrlen) | ^~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:386:17: warning: no previous prototype for 'sys_oabi_connect' [-Wmissing-prototypes] 386 | asmlinkage long sys_oabi_connect(int fd, struct sockaddr __user *addr, int addrlen) | ^~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:396:17: warning: no previous prototype for 'sys_oabi_sendto' [-Wmissing-prototypes] 396 | asmlinkage long sys_oabi_sendto(int fd, void __user *buff, | ^~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:409:17: warning: no previous prototype for 'sys_oabi_sendmsg' [-Wmissing-prototypes] 409 | asmlinkage long sys_oabi_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags) | ^~~~~~~~~~~~~~~~ arch/arm/kernel/sys_oabi-compat.c:435:17: warning: no previous prototype for 'sys_oabi_socketcall' [-Wmissing-prototypes] 435 | asmlinkage long sys_oabi_socketcall(int call, unsigned long __user *args) | ^~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/ep_op_has_event +257 arch/arm/kernel/sys_oabi-compat.c 228 > 229 asmlinkage long sys_oabi_fcntl64(unsigned int fd, unsigned int cmd, 230 unsigned long arg) 231 { 232 switch (cmd) { 233 case F_OFD_GETLK: 234 case F_OFD_SETLK: 235 case F_OFD_SETLKW: 236 case F_GETLK64: 237 case F_SETLK64: 238 case F_SETLKW64: 239 return do_locks(fd, cmd, arg); 240 241 default: 242 return sys_fcntl64(fd, cmd, arg); 243 } 244 } 245 246 struct oabi_epoll_event { 247 __u32 events; 248 __u64 data; 249 } __attribute__ ((packed,aligned(4))); 250 > 251 asmlinkage long sys_oabi_epoll_ctl(int epfd, int op, int fd, 252 struct oabi_epoll_event __user *event) 253 { 254 struct oabi_epoll_event user; 255 struct epoll_event kernel; 256 > 257 if (ep_op_has_event(op) && 258 copy_from_user(&user, event, sizeof(user))) 259 return -EFAULT; 260 261 kernel.events = user.events; 262 kernel.data = user.data; 263 > 264 return do_epoll_ctl(epfd, op, fd, &kernel, false); 265 } 266 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
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