linux-kernel - Re: [RFC PATCH 1/8] drm: exynos/dp: fix code style

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Date:	Thu, 6 Aug 2015 23:20:48 +0800
From:	Yakir Yang <ykk@...k-chips.com>
To:	Joe Perches <joe@...ches.com>
Cc:	Heiko Stuebner <heiko@...ech.de>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Inki Dae <inki.dae@...sung.com>, djkurtz@...gle.com,
	dianders@...gle.com, Takashi Iwai <tiwai@...e.de>,
	Andrzej Hajda <a.hajda@...sung.com>,
	Thierry Reding <treding@...dia.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	David Airlie <airlied@...ux.ie>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
	Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	Ajay Kumar <ajaykumar.rs@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Vincent Palatin <vpalatin@...omium.org>,
	Mark Yao <mark.yao@...k-chips.com>,
	Andy Yan <andy.yan@...k-chips.com>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC PATCH 1/8] drm: exynos/dp: fix code style

Joe,

在 2015/8/6 23:05, Joe Perches 写道:
> On Thu, 2015-08-06 at 09:04 -0500, Yakir Yang wrote:
>> make checkpatch.pl script happy
> That should not be the primary reason to submit a patch.
>
> Making it easier for human code reader to understand
> what the code does should be though.
Thanks for your reply, but I do think that fix code style and make 
checkpatch.pl passed is my primary reason to submit this patch. I can't 
think out more directly words ;( ,

>> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
> []
>> @@ -123,10 +123,11 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
>>   		dev_dbg(dp->dev, "EDID data includes a single extension!\n");
>>   
>>   		/* Read EDID data */
>> -		retval = exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
>> -						EDID_HEADER_PATTERN,
>> -						EDID_BLOCK_LENGTH,
>> -						&edid[EDID_HEADER_PATTERN]);
>> +		retval =
>> +		exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
>> +					      EDID_HEADER_PATTERN,
>> +					      EDID_BLOCK_LENGTH,
>> +					      &edid[EDID_HEADER_PATTERN]);
> This is a relatively uncommon style.
>
> Because the code uses relatively long variable and
> function names as well as longish macro #defines,
> prefer to ignore the 80 column limit.
Okay, I think it would be better to modify like those:

retval = exynos_dp_read_bytes_from_i2c(
		dp, I2C_EDID_DEVICE_ADDR,
		EDID_HEADER_PATTERN,
		EDID_BLOCK_LENGTH,
		&edid[EDID_HEADER_PATTERN]);


Is it okay ?

- Yakir
>
>
>
>


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