linux-kernel - Re: [PATCH] mmc: Change the enhanced area related sysfs output format

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Date:	Tue, 14 Jun 2016 12:12:43 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Beata Baranowska <beatax.baranowska@...el.com>
Cc:	ulf.hansson@...aro.org, adrian.hunter@...el.com,
	aisheng.dong@....com, wsa+renesas@...g-engineering.com,
	gwendal@...omium.org, chaotian.jing@...iatek.com,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	sebastianx.jarosz@...el.com,
	Chuanxiao Dong <chuanxiao.dong@...el.com>
Subject: Re: [PATCH] mmc: Change the enhanced area related sysfs output format

On Tue, Jun 14, 2016 at 10:33:06AM +0200, Beata Baranowska wrote:
> From: Chuanxiao Dong <chuanxiao.dong@...el.com>
> 
> When the enhanced area feature was not enabled, the related sysfs will 
> have -EINVAL(-22) value, so change the sysfs output format to display 
> the correct value.
> 
> Signed-off-by: Chuanxiao Dong <chuanxiao.dong@...el.com>

What about introducing attribute_group an use the is_visible callback
there, so they won't get displayed at all?


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