From: Thomas Gleixner <tglx@linutronix.de>
To: Manoil Claudiu <claudiu.manoil@freescale.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
"David S. Miller" <davem@davemloft.net>,
Kevin Hao <haokexin@gmail.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: RE: [PATCH 13/17] net: gianfar: remove misuse of IRQF_NO_SUSPEND flag
Date: Mon, 21 Sep 2015 18:51:31 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.11.1509211848510.5606@nanos> (raw)
In-Reply-To: <BY2PR0301MB072700F43F00CFC273FED1B59C460@BY2PR0301MB0727.namprd03.prod.outlook.com>
On Mon, 21 Sep 2015, Manoil Claudiu wrote:
> >The device is set as wakeup capable using proper wakeup API but the
> >driver misuses IRQF_NO_SUSPEND to set the interrupt as wakeup source
> >which is incorrect.
> >
> >This patch removes the use of IRQF_NO_SUSPEND flags replacing it with
> >enable_irq_wake instead.
> >
>
> What would be the purpose of IRQF_NO_SUSPEND flag then? The flag is a
> friendlier API compared to calling enable_irq_wake(). For older kernels,
It's not an API, it's just a bandaid for lazy programmers.
> on PPC architectures, the flag did the job. When did this change? Since
> when using IRQF_NO_SUSPEND is a "misuse"?
It always was. Simply because IRQF_NO_SUSPEND has absolutely nothing
to do with wakeup interrupt sources. It's a flag which excludes the
interrupt from the suspend mechanism, but it does not flag it a wakeup
source.
Thanks,
tglx
next prev parent reply other threads:[~2015-09-21 16:51 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-21 15:46 [PATCH 00/17] PM / wakeup : remove misuse of IRQF_NO_SUSPEND flag Sudeep Holla
2015-09-21 15:46 ` [PATCH 01/17] rtc: pl031: " Sudeep Holla
2015-10-02 10:40 ` Linus Walleij
2015-10-02 10:45 ` Sudeep Holla
2015-10-02 13:16 ` Alexandre Belloni
2015-10-05 8:49 ` Linus Walleij
2015-10-03 15:20 ` Alexandre Belloni
2015-09-21 15:46 ` [PATCH 02/17] rtc: ab8500: " Sudeep Holla
2015-10-02 10:41 ` Linus Walleij
2015-10-03 15:20 ` Alexandre Belloni
2015-09-21 15:46 ` [PATCH 03/17] input: tegra-kbc: drop use " Sudeep Holla
2015-10-05 5:44 ` Thierry Reding
2015-10-05 10:24 ` Laxman Dewangan
2015-10-19 17:34 ` Sudeep Holla
2015-10-26 8:37 ` Dmitry Torokhov
2015-09-21 15:47 ` [PATCH 04/17] powerpc: mpic: use IRQCHIP_SKIP_SET_WAKE instead of redundant mpic_irq_set_wake Sudeep Holla
2015-09-22 23:50 ` Scott Wood
2015-09-23 2:35 ` Wang Dongsheng
2015-09-23 3:49 ` Thomas Gleixner
2015-09-23 5:31 ` Wang Dongsheng
2015-09-23 8:00 ` Thomas Gleixner
2015-09-23 4:06 ` Scott Wood
2015-10-19 17:35 ` Sudeep Holla
2015-10-19 17:46 ` Scott Wood
2015-09-21 15:47 ` [PATCH 05/17] platform: x86: remove misuse of IRQF_NO_SUSPEND flag Sudeep Holla
2015-10-03 16:09 ` Darren Hart
2015-09-21 15:47 ` [PATCH 06/17] rtc: ds1343: " Sudeep Holla
2015-10-03 15:20 ` Alexandre Belloni
2015-09-21 15:47 ` [PATCH 07/17] input: tegra-kbc: drop use " Sudeep Holla
2015-09-21 23:21 ` Lee Jones
2015-09-22 0:43 ` Dmitry Torokhov
2015-09-22 21:08 ` Lee Jones
2015-09-23 8:53 ` Sudeep Holla
2015-09-22 10:00 ` Sudeep Holla
2015-09-25 12:39 ` [PATCH 07/17][UPDATE] mfd: qcom_rpm: Drop " Sudeep Holla
2015-09-25 16:08 ` Lee Jones
2015-09-21 15:47 ` [PATCH 08/17] hwmon: abx500: drop the use of IRQF_NO_SUSPEND Sudeep Holla
2015-09-23 15:32 ` Guenter Roeck
2015-09-21 15:47 ` [PATCH 09/17] MIPS: ttyFDC: replace IRQF_NO_SUSPEND with IRQF_COND_SUSPEND Sudeep Holla
2015-09-21 15:47 ` [PATCH 10/17] tty/serial: st-asc: drop the use of IRQF_NO_SUSPEND Sudeep Holla
2015-09-21 15:47 ` [PATCH 11/17] pm: bf609: remove misuse of IRQF_NO_SUSPEND flag Sudeep Holla
2015-10-19 17:38 ` Sudeep Holla
2015-09-21 15:47 ` [PATCH 12/17] ARM: OMAP2+: " Sudeep Holla
2015-10-12 20:20 ` Tony Lindgren
2015-10-12 20:28 ` Tony Lindgren
2015-10-13 10:42 ` Sudeep Holla
2015-10-13 14:53 ` Tony Lindgren
2015-10-13 15:20 ` Sudeep Holla
2015-09-21 15:47 ` [PATCH 13/17] net: gianfar: " Sudeep Holla
2015-09-21 16:24 ` Manoil Claudiu
2015-09-21 16:38 ` Sudeep Holla
2015-09-21 16:51 ` Thomas Gleixner [this message]
2015-09-22 14:04 ` Manoil Claudiu
2015-09-22 15:09 ` Sudeep Holla
2015-09-23 21:20 ` Li Yang
2015-09-23 22:03 ` Thomas Gleixner
2015-09-24 21:17 ` Li Yang
2015-09-24 21:23 ` David Miller
2015-09-21 15:47 ` [PATCH 14/17] media: st-rc: " Sudeep Holla
2015-10-19 17:40 ` Sudeep Holla
2015-09-21 15:47 ` [PATCH 15/17] ir-hix5hd2: drop the use of IRQF_NO_SUSPEND Sudeep Holla
2015-09-23 14:26 ` zhangfei
2015-09-23 14:37 ` Sudeep Holla
2015-09-23 14:50 ` zhangfei
2015-09-21 15:47 ` [PATCH 16/17] pinctrl: single: remove misuse of IRQF_NO_SUSPEND flag Sudeep Holla
2015-09-21 18:53 ` Thomas Gleixner
2015-09-22 9:42 ` Sudeep Holla
2015-09-21 15:47 ` [PATCH 17/17] mfd : ab8500/db8500: fix the abuse of IRQF_NO_SUSPEND Sudeep Holla
2015-09-21 23:20 ` Lee Jones
2015-09-22 10:04 ` Sudeep Holla
2015-09-22 21:03 ` Lee Jones
2015-09-23 9:44 ` Sudeep Holla
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