Commit 76b1ba7f authored by Jisheng Zhang's avatar Jisheng Zhang Committed by Daniel Lezcano

clocksource/drivers/digicolor: Prevent ftrace recursion

Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.

We should not trace digicolor_timer_sched_read() function. Fix this by adding
the notrace attribute to this function.
Signed-off-by: default avatarJisheng Zhang <jszhang@marvell.com>
Acked-by: default avatarBaruch Siach <baruch@tkos.co.il>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent bd859a44
...@@ -143,7 +143,7 @@ static irqreturn_t digicolor_timer_interrupt(int irq, void *dev_id) ...@@ -143,7 +143,7 @@ static irqreturn_t digicolor_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED; return IRQ_HANDLED;
} }
static u64 digicolor_timer_sched_read(void) static u64 notrace digicolor_timer_sched_read(void)
{ {
return ~readl(dc_timer_dev.base + COUNT(TIMER_B)); return ~readl(dc_timer_dev.base + COUNT(TIMER_B));
} }
......
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