sysrq_key_op 50 arch/x86/mach-voyager/voyager_basic.c static struct sysrq_key_op sysrq_voyager_dump_op = { sysrq_key_op 56 include/linux/sysrq.h struct sysrq_key_op *__sysrq_get_key_op(int key); sysrq_key_op 1584 kernel/kgdb.c static struct sysrq_key_op sysrq_gdb_op = { sysrq_key_op 33 kernel/power/poweroff.c static struct sysrq_key_op sysrq_poweroff_op = {