linux-kernel - Re: [PATCH v2] ARM: cpuidle: make arm_cpuidle

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Message-ID: <20160330160504.50be1959@xhacker>
Date:	Wed, 30 Mar 2016 16:05:04 +0800
From:	Jisheng Zhang <jszhang@...vell.com>
To:	Daniel Lezcano <daniel.lezcano@...aro.org>
CC:	<linux@....linux.org.uk>, <lorenzo.pieralisi@....com>,
	<lina.iyer@...aro.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] ARM: cpuidle: make arm_cpuidle_suspend() a bit more
 efficient

Dear Daniel,

On Wed, 30 Mar 2016 10:02:02 +0200 Daniel Lezcano wrote:

> On 03/30/2016 09:47 AM, Jisheng Zhang wrote:
> > Currently, we check cpuidle_ops.suspend every time when entering a
> > low-power idle state. But this check could be avoided in this hot path
> > by moving it into arm_cpuidle_read_ops() to reduce arm_cpuidle_suspend
> > overhead a bit.  
> 
> This patch makes sense but the ARM64 part is missing.
> 

Here is the ARM64 part, you are also in the "To" list ;)

http://lists.infradead.org/pipermail/linux-arm-kernel/2016-March/417713.html

Thanks,
Jisheng