runtime_instr_empty_cb 7 arch/s390/include/asm/runtime_instr.h extern struct runtime_instr_cb runtime_instr_empty_cb; runtime_instr_empty_cb 21 arch/s390/include/asm/runtime_instr.h load_runtime_instr_cb(&runtime_instr_empty_cb); runtime_instr_empty_cb 24 arch/s390/kernel/runtime_instr.c struct runtime_instr_cb runtime_instr_empty_cb; runtime_instr_empty_cb 40 arch/s390/kernel/runtime_instr.c load_runtime_instr_cb(&runtime_instr_empty_cb);