linux-kernel - Re: [PATCH v2 8/8] habanalabs: enable 64-bit DMA mask in POWER9

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Message-ID: <20190616095554.GA5156@infradead.org>
Date:   Sun, 16 Jun 2019 02:55:54 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Oded Gabbay <oded.gabbay@...il.com>
Cc:     Greg KH <gregkh@...uxfoundation.org>,
        "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 8/8] habanalabs: enable 64-bit DMA mask in POWER9

On Sat, Jun 15, 2019 at 03:12:36PM +0300, Oded Gabbay wrote:
> So after the dust has settled a bit, do you think it is reasonable to
> add this patch upstream ?

I'm not Greg, but the answer is a very clear no.  drivers have abslutely
no business adding these hacks.