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Date: Thu, 14 Jul 2016 10:15:10 +0200 From: Jiri Slaby <jslaby@...e.cz> To: stable@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Aaro Koskinen <aaro.koskinen@....fi>, Michael Ellerman <mpe@...erman.id.au>, Oliver Neukum <oliver@...kum.org>, Jiri Slaby <jslaby@...e.cz> Subject: [PATCH 3.12 18/88] drivers: macintosh: rack-meter: limit idle ticks to total ticks From: Aaro Koskinen <aaro.koskinen@....fi> 3.12-stable review patch. If anyone has any objections, please let me know. =============== commit c796d1d97c3035cf54d4d5a9e75abd094db80e76 upstream. Limit idle ticks to total ticks. This prevents the annoying rackmeter leds fully ON / OFF blinking state that happens on fully idling G5 Xserve systems. Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi> Signed-off-by: Michael Ellerman <mpe@...erman.id.au> Cc: Oliver Neukum <oliver@...kum.org> Signed-off-by: Jiri Slaby <jslaby@...e.cz> --- drivers/macintosh/rack-meter.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c index cad0e19b47a2..0b569da3c467 100644 --- a/drivers/macintosh/rack-meter.c +++ b/drivers/macintosh/rack-meter.c @@ -225,6 +225,7 @@ static void rackmeter_do_timer(struct work_struct *work) total_idle_ticks = get_cpu_idle_time(cpu); idle_ticks = (unsigned int) (total_idle_ticks - rcpu->prev_idle); + idle_ticks = min(idle_ticks, total_ticks); rcpu->prev_idle = total_idle_ticks; /* We do a very dumb calculation to update the LEDs for now, -- 2.9.1
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