cpumask: remove cpumask_t from core

Impact: Cleanup

struct cpumask is nicer, and we use it to make where we've made code
safe for CONFIG_CPUMASK_OFFSTACK=y.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 kernel/sched_cpupri.h    |    2 +-
 kernel/stop_machine.c    |    2 +-
 kernel/time/timer_list.c |    4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/sched_cpupri.h b/kernel/sched_cpupri.h
--- a/kernel/sched_cpupri.h
+++ b/kernel/sched_cpupri.h
@@ -25,7 +25,7 @@ struct cpupri {
 
 #ifdef CONFIG_SMP
 int  cpupri_find(struct cpupri *cp,
-		 struct task_struct *p, cpumask_t *lowest_mask);
+		 struct task_struct *p, struct cpumask *lowest_mask);
 void cpupri_set(struct cpupri *cp, int cpu, int pri);
 int cpupri_init(struct cpupri *cp, bool bootmem);
 void cpupri_cleanup(struct cpupri *cp);
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -44,7 +44,7 @@ static int refcount;
 static int refcount;
 static struct workqueue_struct *stop_machine_wq;
 static struct stop_machine_data active, idle;
-static const cpumask_t *active_cpus;
+static const struct cpumask *active_cpus;
 static void *stop_machine_work;
 
 static void set_state(enum stopmachine_state newstate)
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -232,10 +232,10 @@ static void timer_list_show_tickdevices(
 #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
 	print_tickdevice(m, tick_get_broadcast_device(), -1);
 	SEQ_printf(m, "tick_broadcast_mask: %08lx\n",
-		   tick_get_broadcast_mask()->bits[0]);
+		   cpumask_bits(tick_get_broadcast_mask())[0]);
 #ifdef CONFIG_TICK_ONESHOT
 	SEQ_printf(m, "tick_broadcast_oneshot_mask: %08lx\n",
-		   tick_get_broadcast_oneshot_mask()->bits[0]);
+		   cpumask_bits(tick_get_broadcast_oneshot_mask())[0]);
 #endif
 	SEQ_printf(m, "\n");
 #endif