linux-kernel - Re: [PATCH v2 7/7] driver-core: add preferred async probe option for built-in and modules

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Message-ID: <20141006201926.GF18303@htj.dyndns.org>
Date:	Mon, 6 Oct 2014 16:19:26 -0400
From:	Tejun Heo <tj@...nel.org>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
Cc:	gregkh@...uxfoundation.org, dmitry.torokhov@...il.com,
	tiwai@...e.de, arjan@...ux.intel.com, teg@...m.no,
	rmilasan@...e.com, werner@...e.com, oleg@...hat.com, hare@...e.com,
	bpoirier@...e.de, santosh@...lsio.com, pmladek@...e.cz,
	dbueso@...e.com, mcgrof@...e.com, linux-kernel@...r.kernel.org,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	Joseph Salisbury <joseph.salisbury@...onical.com>,
	Kay Sievers <kay@...y.org>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Tim Gardner <tim.gardner@...onical.com>,
	Pierre Fersing <pierre-fersing@...rref.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nagalakshmi Nandigama <nagalakshmi.nandigama@...gotech.com>,
	Praveen Krishnamoorthy <praveen.krishnamoorthy@...gotech.com>,
	Sreekanth Reddy <sreekanth.reddy@...gotech.com>,
	Abhijit Mahajan <abhijit.mahajan@...gotech.com>,
	Casey Leedom <leedom@...lsio.com>,
	Hariprasad S <hariprasad@...lsio.com>,
	MPT-FusionLinux.pdl@...gotech.com, linux-scsi@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH v2 7/7] driver-core: add preferred async probe option for
 built-in and modules

Hello, Luis.

The patchset generally looks good to me.  Please feel free to add

 Reviewed-by: Tejun Heo <tj@...nel.org>

A question below.

On Fri, Oct 03, 2014 at 02:44:43PM -0700, Luis R. Rodriguez wrote:
> +	bus.enable_kern_async=1 [KNL]
> +			This tells the kernel userspace has been vetted for
> +			asynchronous probe support and can listen to the device
> +			driver prefer_async_probe flag for both built-in device
> +			drivers and modules.

Do we intend to keep this param permanently?  Isn't this more of a
temp tool to be used during development?  If so, maybe we should make
that clear with __DEVEL__ too?

Thanks.

-- 
tejun
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