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Subject[PATCH 13/14] clocksource/drivers/c-sky: fixup ftrace call-graph panic
Date
From: Guo Ren <ren_guo@c-sky.com>

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

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
---
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
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