1 files changed, 13 insertions, 14 deletions

diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 2a30d67..714d5d1 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -30,7 +30,7 @@ static cputime64_t get_idle_time(int cpu)
 	if (idle_time == -1ULL) {
 		/* !NO_HZ so we can rely on cpustat.idle */
 		idle = kstat_cpu(cpu).cpustat.idle;
-		idle = cputime64_add(idle, arch_idle_time(cpu));
+		idle += arch_idle_time(cpu);
 	} else
 		idle = nsecs_to_jiffies64(1000 * idle_time);
 
@@ -63,23 +63,22 @@ static int show_stat(struct seq_file *p, void *v)
 	struct timespec boottime;
 
 	user = nice = system = idle = iowait =
-		irq = softirq = steal = cputime64_zero;
-	guest = guest_nice = cputime64_zero;
+		irq = softirq = steal = 0;
+	guest = guest_nice = 0;
 	getboottime(&boottime);
 	jif = boottime.tv_sec;
 
 	for_each_possible_cpu(i) {
-		user = cputime64_add(user, kstat_cpu(i).cpustat.user);
-		nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
-		system = cputime64_add(system, kstat_cpu(i).cpustat.system);
-		idle = cputime64_add(idle, get_idle_time(i));
-		iowait = cputime64_add(iowait, get_iowait_time(i));
-		irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
-		softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
-		steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
-		guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
-		guest_nice = cputime64_add(guest_nice,
-			kstat_cpu(i).cpustat.guest_nice);
+		user += kstat_cpu(i).cpustat.user;
+		nice += kstat_cpu(i).cpustat.nice;
+		system += kstat_cpu(i).cpustat.system;
+		idle += get_idle_time(i);
+		iowait += get_iowait_time(i);
+		irq += kstat_cpu(i).cpustat.irq;
+		softirq += kstat_cpu(i).cpustat.softirq;
+		steal += kstat_cpu(i).cpustat.steal;
+		guest += kstat_cpu(i).cpustat.guest;
+		guest_nice += kstat_cpu(i).cpustat.guest_nice;
 		sum += kstat_cpu_irqs_sum(i);
 		sum += arch_irq_stat_cpu(i);