linux-kernel - [PATCH 03/12] clocksource: Remove clocksource_max

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Date:	Fri,  6 Mar 2015 18:49:54 -0800
From:	John Stultz <john.stultz@...aro.org>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	John Stultz <john.stultz@...aro.org>,
	Dave Jones <davej@...emonkey.org.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Richard Cochran <richardcochran@...il.com>,
	Prarit Bhargava <prarit@...hat.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: [PATCH 03/12] clocksource: Remove clocksource_max_deferment()

clocksource_max_deferment() doesn't do anything useful
anymore, so zap it.

Cc: Dave Jones <davej@...emonkey.org.uk>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Richard Cochran <richardcochran@...il.com>
Cc: Prarit Bhargava <prarit@...hat.com>
Cc: Stephen Boyd <sboyd@...eaurora.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
 kernel/time/clocksource.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index e5d00e6..4988411 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -499,20 +499,6 @@ u64 clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask)
 	return max_nsecs;
 }
 
-/**
- * clocksource_max_deferment - Returns max time the clocksource should be deferred
- * @cs:         Pointer to clocksource
- *
- */
-static u64 clocksource_max_deferment(struct clocksource *cs)
-{
-	u64 max_nsecs;
-
-	max_nsecs = clocks_calc_max_nsecs(cs->mult, cs->shift, cs->maxadj,
-					  cs->mask);
-	return max_nsecs;
-}
-
 #ifndef CONFIG_ARCH_USES_GETTIMEOFFSET
 
 static struct clocksource *clocksource_find_best(bool oneshot, bool skipcur)
@@ -684,7 +670,8 @@ void __clocksource_updatefreq_scale(struct clocksource *cs, u32 scale, u32 freq)
 		cs->maxadj = clocksource_max_adjustment(cs);
 	}
 
-	cs->max_idle_ns = clocksource_max_deferment(cs);
+	cs->max_idle_ns = clocks_calc_max_nsecs(cs->mult, cs->shift,
+						 cs->maxadj, cs->mask);
 }
 EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale);
 
@@ -731,7 +718,8 @@ int clocksource_register(struct clocksource *cs)
 		cs->name);
 
 	/* calculate max idle time permitted for this clocksource */
-	cs->max_idle_ns = clocksource_max_deferment(cs);
+	cs->max_idle_ns = clocks_calc_max_nsecs(cs->mult, cs->shift,
+						 cs->maxadj, cs->mask);
 
 	mutex_lock(&clocksource_mutex);
 	clocksource_enqueue(cs);
-- 
1.9.1

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