linux-kernel - Re: kernel_thread() for non-GPL drivers

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Message-ID: <20150602203138.GK7232@ZenIV.linux.org.uk>
Date:	Tue, 2 Jun 2015 21:31:38 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Ani Sinha <ani@...sta.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	fruggeri <fruggeri@...sta.com>,
	Ivan Delalande <colona@...sta.com>
Subject: Re: kernel_thread() for non-GPL drivers

On Tue, Jun 02, 2015 at 12:43:15PM -0700, Ani Sinha wrote:

> So my question to you is, which api (for x86) are drivers supposed to
> use if kernel_thread() is no longer available? It looks to me like
> maybe we can use kthread_run() which eventually lazily creates a
> kernel thread. Is my understanding correct?

First of all, what the hell does it have to do with GPL?  Or modules
vs. built-in, for that matter...  kernel_thread() is _not_ what it
used to be way back and export or no export, your driver isn't going
to be happy with it.

kthread_run() had been there for more than 11 years, for crying out loud!
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