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

Jisheng Zhang jszhang at marvell.com
Tue Oct 20 01:02:35 PDT 2015

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 at 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);

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