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From: Claudiu Beznea <claudiu.beznea@microchip.com>
To: <daniel.lezcano@linaro.org>, <tglx@linutronix.de>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: [PATCH v3 2/6] clocksource/drivers/timer-microchip-pit64b: use notrace
Date: Fri, 4 Mar 2022 15:35:57 +0200	[thread overview]
Message-ID: <20220304133601.2404086-3-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <20220304133601.2404086-1-claudiu.beznea@microchip.com>

Use notrace for mchp_pit64b_sched_read_clk() to avoid recursive call of
prepare_ftrace_return() when issuing:
echo function_graph > /sys/kernel/debug/tracing/current_tracer

Fixes: 625022a5f160 ("clocksource/drivers/timer-microchip-pit64b: Add Microchip PIT64B support")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/clocksource/timer-microchip-pit64b.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/timer-microchip-pit64b.c b/drivers/clocksource/timer-microchip-pit64b.c
index cfa4ec7ef396..790d2c9b42a7 100644
--- a/drivers/clocksource/timer-microchip-pit64b.c
+++ b/drivers/clocksource/timer-microchip-pit64b.c
@@ -165,7 +165,7 @@ static u64 mchp_pit64b_clksrc_read(struct clocksource *cs)
 	return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);
 }
 
-static u64 mchp_pit64b_sched_read_clk(void)
+static u64 notrace mchp_pit64b_sched_read_clk(void)
 {
 	return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);
 }
-- 
2.32.0


WARNING: multiple messages have this Message-ID (diff)
From: Claudiu Beznea <claudiu.beznea@microchip.com>
To: <daniel.lezcano@linaro.org>, <tglx@linutronix.de>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: [PATCH v3 2/6] clocksource/drivers/timer-microchip-pit64b: use notrace
Date: Fri, 4 Mar 2022 15:35:57 +0200	[thread overview]
Message-ID: <20220304133601.2404086-3-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <20220304133601.2404086-1-claudiu.beznea@microchip.com>

Use notrace for mchp_pit64b_sched_read_clk() to avoid recursive call of
prepare_ftrace_return() when issuing:
echo function_graph > /sys/kernel/debug/tracing/current_tracer

Fixes: 625022a5f160 ("clocksource/drivers/timer-microchip-pit64b: Add Microchip PIT64B support")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/clocksource/timer-microchip-pit64b.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/timer-microchip-pit64b.c b/drivers/clocksource/timer-microchip-pit64b.c
index cfa4ec7ef396..790d2c9b42a7 100644
--- a/drivers/clocksource/timer-microchip-pit64b.c
+++ b/drivers/clocksource/timer-microchip-pit64b.c
@@ -165,7 +165,7 @@ static u64 mchp_pit64b_clksrc_read(struct clocksource *cs)
 	return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);
 }
 
-static u64 mchp_pit64b_sched_read_clk(void)
+static u64 notrace mchp_pit64b_sched_read_clk(void)
 {
 	return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);
 }
-- 
2.32.0


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  parent reply	other threads:[~2022-03-04 13:35 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-04 13:35 [PATCH v3 0/6] clocksource/drivers/timer-microchip-pit64b: fixes and improvements Claudiu Beznea
2022-03-04 13:35 ` Claudiu Beznea
2022-03-04 13:35 ` [PATCH v3 1/6] clocksource/drivers/timer-microchip-pit64b: remove mmio selection Claudiu Beznea
2022-03-04 13:35   ` Claudiu Beznea
2022-03-14  9:28   ` [tip: timers/core] clocksource/drivers/timer-microchip-pit64b: Remove " tip-bot2 for Claudiu Beznea
2022-03-04 13:35 ` Claudiu Beznea [this message]
2022-03-04 13:35   ` [PATCH v3 2/6] clocksource/drivers/timer-microchip-pit64b: use notrace Claudiu Beznea
2022-03-14  9:28   ` [tip: timers/core] clocksource/drivers/timer-microchip-pit64b: Use notrace tip-bot2 for Claudiu Beznea
2022-03-04 13:35 ` [PATCH v3 3/6] clocksource/drivers/timer-microchip-pit64b: use 5MHz for clockevent Claudiu Beznea
2022-03-04 13:35   ` Claudiu Beznea
2022-03-14  9:28   ` [tip: timers/core] clocksource/drivers/timer-microchip-pit64b: Use " tip-bot2 for Claudiu Beznea
2022-03-04 13:35 ` [PATCH v3 4/6] clocksource/drivers/timer-microchip-pit64b: remove suspend/resume ops for ce Claudiu Beznea
2022-03-04 13:35   ` Claudiu Beznea
2022-03-04 13:36 ` [PATCH v3 5/6] clocksource/drivers/timer-microchip-pit64b: use mchp_pit64b_{suspend, resume} Claudiu Beznea
2022-03-04 13:36   ` Claudiu Beznea
2022-03-04 13:36 ` [PATCH v3 6/6] clocksource/drivers/timer-microchip-pit64b: fix compilation warnings Claudiu Beznea
2022-03-04 13:36   ` Claudiu Beznea
2022-03-04 19:46 ` [PATCH v3 0/6] clocksource/drivers/timer-microchip-pit64b: fixes and improvements Daniel Lezcano
2022-03-04 19:46   ` Daniel Lezcano
2022-03-07 12:17   ` Claudiu.Beznea
2022-03-07 12:17     ` Claudiu.Beznea

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