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From: Mason <slash.tmp@free.fr>
To: Arnd Bergmann <arnd@arndb.de>,
	Eduardo Valentin <edubezval@gmail.com>,
	Zhang Rui <rui.zhang@intel.com>
Cc: Kevin Hilman <khilman@baylibre.com>,
	linux-pm <linux-pm@vger.kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Sebastian Frias <sf84@laposte.net>,
	Thierry Reding <thierry.reding@gmail.com>
Subject: Re: [PATCH v3] thermal: tango: add resume support
Date: Mon, 25 Jul 2016 11:48:47 +0200	[thread overview]
Message-ID: <5795E07F.6010506@free.fr> (raw)
In-Reply-To: <4062048.3qHsMMf8fO@wuerfel>

On 25/07/2016 10:52, Arnd Bergmann wrote:

> On Monday, July 25, 2016 10:18:22 AM CEST Mason wrote:
> 
>> Moving the SIMPLE_DEV_PM_OPS macro outside the CONFIG_PM_SLEEP guard
>> would unconditionally define a struct dev_pm_ops, which just wastes
>> space when CONFIG_PM_SLEEP is undefined (if I'm not mistaken).
>>
>> That's why I put SIMPLE_DEV_PM_OPS inside the CONFIG_PM_SLEEP guard.
> 
> If you want to avoid the extra few bytes, just use the trick I
> suggested:
> 
> 	.pm = IS_ENABLED(CONFIG_PM_SLEEP) ? &tango_thermal_pm : NULL,

This would achieve the same result as the solution I proposed
in my v2 patch, right?

So you're saying you prefer the IS_ENABLED macro over using
#ifdef ... #else define stuff as NULL #endif

Did I get that right?

Eduardo, Zhang, what do thermal maintainers prefer?

> You should basically never have that #ifdef inside of the
> platform_driver definition.

Except when the fields don't exist, like the bug I introduced
in struct smp_operations (which you fixed).

Regards.


WARNING: multiple messages have this Message-ID (diff)
From: slash.tmp@free.fr (Mason)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3] thermal: tango: add resume support
Date: Mon, 25 Jul 2016 11:48:47 +0200	[thread overview]
Message-ID: <5795E07F.6010506@free.fr> (raw)
In-Reply-To: <4062048.3qHsMMf8fO@wuerfel>

On 25/07/2016 10:52, Arnd Bergmann wrote:

> On Monday, July 25, 2016 10:18:22 AM CEST Mason wrote:
> 
>> Moving the SIMPLE_DEV_PM_OPS macro outside the CONFIG_PM_SLEEP guard
>> would unconditionally define a struct dev_pm_ops, which just wastes
>> space when CONFIG_PM_SLEEP is undefined (if I'm not mistaken).
>>
>> That's why I put SIMPLE_DEV_PM_OPS inside the CONFIG_PM_SLEEP guard.
> 
> If you want to avoid the extra few bytes, just use the trick I
> suggested:
> 
> 	.pm = IS_ENABLED(CONFIG_PM_SLEEP) ? &tango_thermal_pm : NULL,

This would achieve the same result as the solution I proposed
in my v2 patch, right?

So you're saying you prefer the IS_ENABLED macro over using
#ifdef ... #else define stuff as NULL #endif

Did I get that right?

Eduardo, Zhang, what do thermal maintainers prefer?

> You should basically never have that #ifdef inside of the
> platform_driver definition.

Except when the fields don't exist, like the bug I introduced
in struct smp_operations (which you fixed).

Regards.

  reply	other threads:[~2016-07-25  9:49 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-28 11:37 [RESEND PATCH v2] thermal: tango: add resume support Mason
2016-06-28 11:37 ` Mason
2016-07-18  9:33 ` Thierry Reding
2016-07-18  9:33   ` Thierry Reding
2016-07-18 10:09   ` Arnd Bergmann
2016-07-18 10:09     ` Arnd Bergmann
2016-07-18 10:13     ` Thierry Reding
2016-07-18 10:13       ` Thierry Reding
2016-07-18 11:10       ` Arnd Bergmann
2016-07-18 11:10         ` Arnd Bergmann
2016-07-18 11:28         ` Thierry Reding
2016-07-18 11:28           ` Thierry Reding
2016-07-18 12:21 ` [PATCH v3] " Mason
2016-07-18 12:21   ` Mason
2016-07-20 10:50   ` Thierry Reding
2016-07-20 10:50     ` Thierry Reding
2016-07-22 22:00   ` Kevin Hilman
2016-07-22 22:00     ` Kevin Hilman
2016-07-25  8:18     ` Mason
2016-07-25  8:18       ` Mason
2016-07-25  8:52       ` Arnd Bergmann
2016-07-25  8:52         ` Arnd Bergmann
2016-07-25  9:48         ` Mason [this message]
2016-07-25  9:48           ` Mason
2016-07-26 12:13           ` Arnd Bergmann
2016-07-26 12:13             ` Arnd Bergmann
2016-08-19 11:29             ` Zhang Rui
2016-08-19 11:29               ` Zhang Rui
2016-08-22 21:00               ` Arnd Bergmann
2016-08-22 21:00                 ` Arnd Bergmann
2016-08-24  8:25                 ` Zhang Rui
2016-08-24  8:25                   ` Zhang Rui
2016-08-24  8:32                   ` Arnd Bergmann
2016-08-24  8:32                     ` Arnd Bergmann
2016-08-24 15:12                     ` Mason
2016-08-24 15:12                       ` Mason
2016-09-02 13:17 ` [PATCH v4] " Marc Gonzalez
2016-09-02 13:17   ` Marc Gonzalez
2016-09-02 20:54   ` Kevin Hilman
2016-09-02 20:54     ` Kevin Hilman

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