Yes. Patch below should fix the problem.
Fix below warning -
Introduced by commit abb74cefa9c682fb38ba86c17ca3c86fed6cc464 ("sched:
Export ns irqtimes through /proc/stat").
After merging the tip tree, today's linux-next build (powerpc
ppc64_defconfig) produced these warnings:
kernel/sched.c:3719: warning: 'irqtime_account_idle_ticks' defined but not =
used
kernel/sched.c:3720: warning: 'irqtime_account_process_tick' defined but no=
t used
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Venkatesh Pallipadi <venki@xxxxxxxxxx>
---
kernel/sched.c | 64 ++++++++++++++++++++++++++++----------------------------
1 files changed, 32 insertions(+), 32 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index 477e1bc..9a552bd 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3654,6 +3654,36 @@ void account_system_time(struct task_struct *p, int hardirq_offset,
__account_system_time(p, cputime, cputime_scaled, target_cputime64);
}
+/*
+ * Account for involuntary wait time.
+ * @steal: the cpu time spent in involuntary wait
+ */
+void account_steal_time(cputime_t cputime)
+{
+ struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
+ cputime64_t cputime64 = cputime_to_cputime64(cputime);
+
+ cpustat->steal = cputime64_add(cpustat->steal, cputime64);
+}
+
+/*
+ * Account for idle time.
+ * @cputime: the cpu time spent in idle wait
+ */
+void account_idle_time(cputime_t cputime)
+{
+ struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
+ cputime64_t cputime64 = cputime_to_cputime64(cputime);
+ struct rq *rq = this_rq();
+
+ if (atomic_read(&rq->nr_iowait) > 0)
+ cpustat->iowait = cputime64_add(cpustat->iowait, cputime64);
+ else
+ cpustat->idle = cputime64_add(cpustat->idle, cputime64);
+}
+
+#ifndef CONFIG_VIRT_CPU_ACCOUNTING
+
#ifdef CONFIG_IRQ_TIME_ACCOUNTING
/*
* Account a tick to a process and cpustat
@@ -3715,41 +3745,11 @@ static void irqtime_account_idle_ticks(int ticks)
for (i = 0; i < ticks; i++)
irqtime_account_process_tick(current, 0, rq);
}
-#else
+#else /* CONFIG_IRQ_TIME_ACCOUNTING */
static void irqtime_account_idle_ticks(int ticks) {}
static void irqtime_account_process_tick(struct task_struct *p, int user_tick,
struct rq *rq) {}
-#endif
-
-/*
- * Account for involuntary wait time.
- * @steal: the cpu time spent in involuntary wait
- */
-void account_steal_time(cputime_t cputime)
-{
- struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
- cputime64_t cputime64 = cputime_to_cputime64(cputime);
-
- cpustat->steal = cputime64_add(cpustat->steal, cputime64);
-}
-
-/*
- * Account for idle time.
- * @cputime: the cpu time spent in idle wait
- */
-void account_idle_time(cputime_t cputime)
-{
- struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
- cputime64_t cputime64 = cputime_to_cputime64(cputime);
- struct rq *rq = this_rq();
-
- if (atomic_read(&rq->nr_iowait) > 0)
- cpustat->iowait = cputime64_add(cpustat->iowait, cputime64);
- else
- cpustat->idle = cputime64_add(cpustat->idle, cputime64);
-}
-
-#ifndef CONFIG_VIRT_CPU_ACCOUNTING
+#endif /* CONFIG_IRQ_TIME_ACCOUNTING */
/*
* Account a single tick of cpu time.
--
1.7.3.1
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