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Groups > linux.kernel > #1251427

[PATCH 2/7] clocksource: samsung_pwm_timer: fix ftrace

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Currently samsung_pwm_timer can be used as a scheduler clock, we properly
marked samsung_read_sched_clock() as notrace. But we then call another
function samsung_clocksource_read() that _wasn't_ notrace.

This patch fix this by adding notrace attribute to the
samsung_clocksource_read() function.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
---
 drivers/clocksource/samsung_pwm_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index bc90e13..9502bc4 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -307,7 +307,7 @@ static void samsung_clocksource_resume(struct clocksource *cs)
 	samsung_time_start(pwm.source_id, true);
 }
 
-static cycle_t samsung_clocksource_read(struct clocksource *c)
+static cycle_t notrace samsung_clocksource_read(struct clocksource *c)
 {
 	return ~readl_relaxed(pwm.source_reg);
 }
-- 
2.6.1

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Thread

[PATCH 0/7] clocksource: add missing notrace attribute Jisheng Zhang <jszhang@marvell.com> - 2015-10-20 10:10 +0200
  [PATCH 3/7] clocksource: pistachio: fix ftrace Jisheng Zhang <jszhang@marvell.com> - 2015-10-20 10:20 +0200
  [PATCH 5/7] clocksource: vf_pit_timer: don't trace pit_read_sched_clock() Jisheng Zhang <jszhang@marvell.com> - 2015-10-20 10:20 +0200
  [PATCH 2/7] clocksource: samsung_pwm_timer: fix ftrace Jisheng Zhang <jszhang@marvell.com> - 2015-10-20 10:20 +0200
  Re: [PATCH 0/7] clocksource: add missing notrace attribute Daniel Lezcano <daniel.lezcano@linaro.org> - 2015-10-26 19:00 +0100
    Re: [PATCH 0/7] clocksource: add missing notrace attribute Jisheng Zhang <jszhang@marvell.com> - 2015-10-27 03:30 +0100

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