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From: Jani Nikula <jani.nikula@linux.intel.com>
To: Daniel Thompson <daniel.thompson@linaro.org>,
	Meghana Madhyastha <meghana.madhyastha@gmail.com>,
	daniel@ffwll.ch, noralf@tronnes.org,
	outreachy-kernel@googlegroups.com,
	dri-devel@lists.freedesktop.org, Lee Jones <lee.jones@linaro.org>
Subject: Re: [PATCH v7 1/3] backlight: Add IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
Date: Mon, 02 Oct 2017 11:49:20 +0300	[thread overview]
Message-ID: <87r2um53zj.fsf@intel.com> (raw)
In-Reply-To: <527a54b8-d67a-651c-3326-4780b9f3cfc4@linaro.org>

On Mon, 02 Oct 2017, Daniel Thompson <daniel.thompson@linaro.org> wrote:
> On 01/10/17 18:26, Meghana Madhyastha wrote:
>> -#ifdef CONFIG_OF
>> +#if defined CONFIG_OF && IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
>
> The above comments are more important but why does this mix defined and 
> IS_ENABLED? Couldn't they both use defined (and preferably with the 
> optional brackets around the CONFIG_ symbol).

No, always use IS_ENABLED() for tristates when you want to match 'y' or
'm'.

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Technology Center


WARNING: multiple messages have this Message-ID (diff)
From: Jani Nikula <jani.nikula@linux.intel.com>
To: Daniel Thompson <daniel.thompson@linaro.org>,
	Meghana Madhyastha <meghana.madhyastha@gmail.com>,
	daniel@ffwll.ch, noralf@tronnes.org,
	outreachy-kernel@googlegroups.com,
	dri-devel@lists.freedesktop.org, Lee Jones <lee.jones@linaro.org>
Subject: Re: [PATCH v7 1/3] backlight: Add IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
Date: Mon, 02 Oct 2017 11:49:20 +0300	[thread overview]
Message-ID: <87r2um53zj.fsf@intel.com> (raw)
In-Reply-To: <527a54b8-d67a-651c-3326-4780b9f3cfc4@linaro.org>

On Mon, 02 Oct 2017, Daniel Thompson <daniel.thompson@linaro.org> wrote:
> On 01/10/17 18:26, Meghana Madhyastha wrote:
>> -#ifdef CONFIG_OF
>> +#if defined CONFIG_OF && IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
>
> The above comments are more important but why does this mix defined and 
> IS_ENABLED? Couldn't they both use defined (and preferably with the 
> optional brackets around the CONFIG_ symbol).

No, always use IS_ENABLED() for tristates when you want to match 'y' or
'm'.

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Technology Center
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  parent reply	other threads:[~2017-10-02  8:49 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-01 17:24 [PATCH v7 0/3] drm/tinydrm: drm_of_find_backlight helper Meghana Madhyastha
2017-10-01 17:24 ` Meghana Madhyastha
2017-10-01 17:26 ` [PATCH v7 1/3] backlight: Add IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE) Meghana Madhyastha
2017-10-01 17:26   ` Meghana Madhyastha
2017-10-02  5:58   ` Daniel Thompson
2017-10-02  5:58     ` Daniel Thompson
2017-10-02  5:59     ` Daniel Thompson
2017-10-02  5:59       ` Daniel Thompson
2017-10-02  8:49     ` Jani Nikula [this message]
2017-10-02  8:49       ` Jani Nikula
2017-10-02  9:36       ` Daniel Thompson
2017-10-02  9:36         ` Daniel Thompson
2017-10-02  9:46         ` Jani Nikula
2017-10-02  9:46           ` Jani Nikula
2017-10-02  9:00     ` Jani Nikula
2017-10-02  9:00       ` Jani Nikula
2017-10-03  8:03       ` Daniel Vetter
2017-10-03  8:03         ` Daniel Vetter
2017-10-03  8:51         ` Daniel Thompson
2017-10-03  8:51           ` Daniel Thompson
2017-10-03  9:04           ` Daniel Vetter
2017-10-03  9:04             ` Daniel Vetter
2017-10-06 18:01             ` Noralf Trønnes
2017-10-06 18:01               ` Noralf Trønnes
2017-10-09  9:06               ` Daniel Thompson
2017-10-09  9:06                 ` Daniel Thompson
2017-10-09 15:35                 ` Noralf Trønnes
2017-10-09 15:35                   ` Noralf Trønnes
2017-10-01 17:28 ` [PATCH v7 2/3] drm/tinydrm: Move tinydrm_of_find_backlight into drm_of.c Meghana Madhyastha
2017-10-01 17:28   ` Meghana Madhyastha
2017-10-01 17:29 ` [PATCH v7 3/3] drm/tinydrm: Add devres versions of drm_of_find_backlight Meghana Madhyastha
2017-10-01 17:29   ` Meghana Madhyastha

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