[PATCH 13/14] clocksource/drivers/c-sky: fixup ftrace call-graph panic

[guoren]

From: Guo Ren <ren_guo@xxxxxxxxx>

We must add notrace on sched_clock_read, because it's called
by ftrace_graph_caller.

Signed-off-by: Guo Ren <ren_guo@xxxxxxxxx>
---
 drivers/clocksource/timer-mp-csky.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/timer-mp-csky.c b/drivers/clocksource/timer-mp-csky.c
index 3cb6dbc..183a995 100644
--- a/drivers/clocksource/timer-mp-csky.c
+++ b/drivers/clocksource/timer-mp-csky.c
@@ -97,7 +97,7 @@ static int csky_mptimer_dying_cpu(unsigned int cpu)
 /*
  * clock source
  */
-static u64 sched_clock_read(void)
+static u64 notrace sched_clock_read(void)
 {
 	return (u64)mfcr(PTIM_CCVR);
 }
-- 
2.7.4