1. CC kernel/power/poweroff.o
  2. LD kernel/power/built-in.o
  3. CC kernel/sched/bfs.o
  4. In file included from kernel/sched/bfs.c:73:0:
  5. include/linux/urwlock.h: In function ‘__urw_write_lock’:
  6. include/linux/urwlock.h:42:2: error: implicit declaration of function ‘arch_write_lock’ [-Werror=implicit-function-declaration]
  7. include/linux/urwlock.h: In function ‘__urw_write_unlock’:
  8. include/linux/urwlock.h:48:2: error: implicit declaration of function ‘arch_write_unlock’ [-Werror=implicit-function-declaration]
  9. include/linux/urwlock.h: In function ‘__urw_read_lock’:
  10. include/linux/urwlock.h:54:2: error: implicit declaration of function ‘arch_read_lock’ [-Werror=implicit-function-declaration]
  11. include/linux/urwlock.h: In function ‘__urw_read_unlock’:
  12. include/linux/urwlock.h:60:2: error: implicit declaration of function ‘arch_read_unlock’ [-Werror=implicit-function-declaration]
  13. cc1: some warnings being treated as errors
  14. make[2]: *** [kernel/sched/bfs.o] Error 1
  15. make[1]: *** [kernel/sched] Error 2
  16. make: *** [kernel] Error 2
  17. ==> ERROR: A failure occurred in build().
  18. Aborting...