From: Jisheng Zhang <[email protected]> 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: Jisheng Zhang <[email protected]> Acked-by: Baruch Siach <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> --- drivers/clocksource/timer-digicolor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clocksource/timer-digicolor.c b/drivers/clocksource/timer-digicolor.c index e73947f0f..a536eeb 100644 --- a/drivers/clocksource/timer-digicolor.c +++ b/drivers/clocksource/timer-digicolor.c @@ -143,7 +143,7 @@ static irqreturn_t digicolor_timer_interrupt(int irq, void *dev_id) 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)); } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
