From: Nicolai Stange <nicstange@gmail.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>,
linux-kernel@vger.kernel.org,
Nicolai Stange <nicstange@gmail.com>
Subject: [RFC v4 14/22] clockevents: clockevents_program_event(): turn clc into unsigned long
Date: Tue, 23 Aug 2016 01:33:12 +0200 [thread overview]
Message-ID: <20160822233320.4548-15-nicstange@gmail.com> (raw)
In-Reply-To: <20160822233320.4548-1-nicstange@gmail.com>
Right now, being of type unsigned long long, the clc local variable in
clockevents_program_event() is unnecessarily wide as it gets cast to
unsigned long anyway.
Degrade clc's type to unsigned long and remove the now superfluous casts.
Signed-off-by: Nicolai Stange <nicstange@gmail.com>
---
kernel/time/clockevents.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 7832050..8fddb67 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -311,7 +311,7 @@ static int clockevents_program_min_delta(struct clock_event_device *dev)
int clockevents_program_event(struct clock_event_device *dev, ktime_t expires,
bool force)
{
- unsigned long long clc;
+ unsigned long clc;
int64_t delta;
int rc;
@@ -337,11 +337,12 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires,
if (delta <= 0)
return force ? clockevents_program_min_delta(dev) : -ETIME;
- clc = ((unsigned long long) delta * dev->mult) >> dev->shift;
- clc = min_t(unsigned long, clc, dev->max_delta_ticks);
- clc = max_t(unsigned long, clc, dev->min_delta_ticks_adjusted);
+ clc = (unsigned long)(((unsigned long long)delta *
+ dev->mult) >> dev->shift);
+ clc = min(clc, dev->max_delta_ticks);
+ clc = max(clc, dev->min_delta_ticks_adjusted);
- rc = dev->set_next_event((unsigned long) clc, dev);
+ rc = dev->set_next_event(clc, dev);
return (rc && force) ? clockevents_program_min_delta(dev) : rc;
}
--
2.9.2
next prev parent reply other threads:[~2016-08-22 23:34 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-22 23:32 [RFC v4 00/22] adapt clockevents frequencies to mono clock Nicolai Stange
2016-08-22 23:32 ` [RFC v4 01/22] clocksource: sh_cmt: compute rate before registration again Nicolai Stange
2016-08-22 23:33 ` [RFC v4 02/22] clocksource: sh_tmu: " Nicolai Stange
2016-08-22 23:33 ` [RFC v4 03/22] clocksource: em_sti: split clock prepare and enable steps Nicolai Stange
2016-08-22 23:33 ` [RFC v4 04/22] clocksource: em_sti: compute rate before registration Nicolai Stange
2016-08-22 23:33 ` [RFC v4 05/22] clocksource: h8300_timer8: don't reset rate in ->set_state_oneshot() Nicolai Stange
2016-08-22 23:33 ` [RFC v4 06/22] clockevents: make clockevents_config() static Nicolai Stange
2016-08-22 23:33 ` [RFC v4 07/22] many clockevent drivers: set ->min_delta_ticks and ->max_delta_ticks Nicolai Stange
2016-08-22 23:33 ` [RFC v4 08/22] arch/s390/kernel/time: " Nicolai Stange
2016-08-22 23:33 ` [RFC v4 09/22] arch/x86/platform/uv/uv_time: " Nicolai Stange
2016-08-22 23:33 ` [RFC v4 10/22] arch/tile/kernel/time: " Nicolai Stange
2016-09-06 19:19 ` Chris Metcalf
2016-09-08 11:21 ` Nicolai Stange
2016-09-09 16:25 ` Chris Metcalf
2016-08-22 23:33 ` [RFC v4 11/22] clockevents: always initialize ->min_delta_ns and ->max_delta_ns Nicolai Stange
2016-08-22 23:33 ` [RFC v4 12/22] many clockevent drivers: don't set " Nicolai Stange
2016-08-22 23:33 ` [RFC v4 13/22] clockevents: check a programmed delta's bounds in terms of cycles Nicolai Stange
2016-08-27 15:20 ` Nicolai Stange
2016-08-31 8:31 ` Nicolai Stange
2016-08-22 23:33 ` Nicolai Stange [this message]
2016-08-25 13:20 ` [RFC v4 14/22] clockevents: clockevents_program_event(): turn clc into unsigned long Thomas Gleixner
2016-08-27 15:23 ` Nicolai Stange
2016-08-22 23:33 ` [RFC v4 15/22] clockevents: clockevents_program_min_delta(): don't set ->next_event Nicolai Stange
2016-08-22 23:33 ` [RFC v4 16/22] clockevents: use ->min_delta_ticks_adjusted to program minimum delta Nicolai Stange
2016-08-24 9:28 ` Nicolai Stange
2016-08-22 23:33 ` [RFC v4 17/22] clockevents: min delta increment: calculate min_delta_ns from ticks Nicolai Stange
2016-08-22 23:33 ` [RFC v4 18/22] timer_list: print_tickdevice(): calculate ->*_delta_ns dynamically Nicolai Stange
2016-08-22 23:33 ` [RFC v4 19/22] clockevents: purge ->min_delta_ns and ->max_delta_ns Nicolai Stange
2016-08-22 23:33 ` [RFC v4 20/22] clockevents: initial support for mono to raw time conversion Nicolai Stange
2016-08-22 23:33 ` [RFC v4 21/22] clockevents: make setting of ->mult and ->mult_adjusted atomic Nicolai Stange
2016-08-22 23:33 ` [RFC v4 22/22] timekeeping: inform clockevents about freq adjustments Nicolai Stange
2016-08-24 9:40 ` Nicolai Stange
2016-08-25 14:56 ` Thomas Gleixner
2016-08-25 15:25 ` Thomas Gleixner
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