linux-kernel - Re: [PATCH 1/4] firmware: generalize "firmware" as "system data" helpers

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Message-ID: <20151006090821.GB9030@kroah.com>
Date:	Tue, 6 Oct 2015 10:08:21 +0100
From:	Greg KH <gregkh@...uxfoundation.org>
To:	"Luis R. Rodriguez" <mcgrof@...e.com>
Cc:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>,
	ming.lei@...onical.com, corbet@....net,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	dwmw2@...radead.org, dhowells@...hat.com,
	seth.forshee@...onical.com, rusty@...tcorp.com.au, mmarek@...e.cz,
	mjg59@...f.ucam.org, kyle@...nel.org,
	linux-security-module@...r.kernel.org, keyrings@...ux-nfs.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kees Cook <keescook@...omium.org>,
	Casey Schaufler <casey@...aufler-ca.com>,
	Takashi Iwai <tiwai@...e.de>,
	Vojtěch Pavlík <vojtech@...e.cz>
Subject: Re: [PATCH 1/4] firmware: generalize "firmware" as "system data"
 helpers

Just responding to one thing at the moment:

On Mon, Oct 05, 2015 at 11:22:22PM +0200, Luis R. Rodriguez wrote:
>   * we should phase out the usermode helper from firmware_class long term

You can "phase out", but you can not delete it as it's a user/kernel api
that we have to support for forever, sorry.

Also, for some devices / use cases, the usermode helper is the solution
(think async loading of firmware when the host wants to do it.)

thanks,

greg k-h
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