Commit bd859a44 authored by Jisheng Zhang's avatar Jisheng Zhang Committed by Daniel Lezcano

clocksource/drivers/fsl_ftm_timer: 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 the ftm_read_sched_clock() function.

Fix this by adding the notrace attribute to this function.
Signed-off-by: default avatarJisheng Zhang <jszhang@marvell.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent 36361abc
...@@ -118,7 +118,7 @@ static inline void ftm_reset_counter(void __iomem *base) ...@@ -118,7 +118,7 @@ static inline void ftm_reset_counter(void __iomem *base)
ftm_writel(0x00, base + FTM_CNT); ftm_writel(0x00, base + FTM_CNT);
} }
static u64 ftm_read_sched_clock(void) static u64 notrace ftm_read_sched_clock(void)
{ {
return ftm_readl(priv->clksrc_base + FTM_CNT); return ftm_readl(priv->clksrc_base + FTM_CNT);
} }
......
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