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clocksource/drivers/c-sky: fixup ftrace call-graph panic

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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>
This commit is contained in:
Guo Ren
2018-12-31 20:52:41 +08:00
parent d7950be145
commit 0c87bb0e87
1 changed files with 1 additions and 1 deletions
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2
drivers/clocksource/timer-mp-csky.c
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@@ -97,7 +97,7 @@ static int csky_mptimer_dying_cpu(unsigned int cpu)
/* /*
* clock source * clock source
*/ */
static u64 sched_clock_read(void) static u64 notrace sched_clock_read(void)
{ {
return (u64)mfcr(PTIM_CCVR); return (u64)mfcr(PTIM_CCVR);
} }