From: Christoph Hellwig <hch@lst.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alistair Popple <alistair@popple.id.au>,
linuxppc-dev@lists.ozlabs.org, Christoph Hellwig <hch@lst.de>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] powerpc/npu-dma: Remove NPU DMA ops
Date: Tue, 30 Oct 2018 14:24:02 +0100 [thread overview]
Message-ID: <20181030132401.GC30783@lst.de> (raw)
In-Reply-To: <30359cc433e97739d93e13717b2897e462895097.camel@kernel.crashing.org>
On Wed, Oct 31, 2018 at 12:09:29AM +1100, Benjamin Herrenschmidt wrote:
> On Tue, 2018-10-30 at 13:58 +0100, Christoph Hellwig wrote:
> > Please take my patch instead. We have a kernel polcity to not keep
> > dead code around, and everyone including Linus and the attending IBMers
> > confirmed this.
>
> Let's call a cat a cat ... ;-)
>
> It's not *dead* code. It's code that is used by an out of tree driver
> (which also happen not to be open source).
Which clearly makes it a derived work of the kernel if it uses an
interface just create for it, and thus even more important to remove
it to not get anyone into legal trouble.
next prev parent reply other threads:[~2018-10-30 13:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-30 11:02 [PATCH] powerpc/npu-dma: Remove NPU DMA ops Alistair Popple
2018-10-30 12:58 ` Christoph Hellwig
2018-10-30 13:09 ` Benjamin Herrenschmidt
2018-10-30 13:24 ` Christoph Hellwig [this message]
2018-10-30 15:01 ` Michael Ellerman
2018-11-07 21:27 ` Michael Ellerman
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