From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kalle Valo <kvalo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Subject: Re: [PATCH] wil6210: fix debugfs_simple_attr.cocci warnings
Date: Fri, 05 Oct 2018 14:04:42 +0300
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References: <1538737646-118337-1-git-send-email-yuehaibing@huawei.com>
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Cc: Maya Erez <merez-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>, <linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
        <wil6210-Rm6X0d1/PG5y9aJCnZT0Uw@public.gmane.org>, <kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
        <netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
To: YueHaibing <yuehaibing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
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        (yuehaibing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org's message of "Fri, 5 Oct 2018 11:07:26 +0000")
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YueHaibing <yuehaibing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org> writes:

> Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
> for debugfs files.
>
> Semantic patch information:
> Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
> imposes some significant overhead as compared to
> DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().
>
> Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci

Just out of curiosity, what kind of overhead are we talking about here?

-- 
Kalle Valo