linux-kernel - Re: [PATCH 6/7] MIPS: SGI-IP27: use generic PCI driver

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Message-ID: <20190220151056.GA29614@infradead.org>
Date:   Wed, 20 Feb 2019 07:10:56 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Thomas Bogendoerfer <tbogendoerfer@...e.de>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        James Hogan <jhogan@...nel.org>, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-pci@...r.kernel.org,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Paul Burton <paul.burton@...s.com>,
        Ralf Baechle <ralf@...ux-mips.org>
Subject: Re: [PATCH 6/7] MIPS: SGI-IP27: use generic PCI driver

On Mon, Feb 18, 2019 at 11:58:07AM +0100, Thomas Bogendoerfer wrote:
> This of course will break SH7786. To fix both cases how about making dma_pfn_offset
>
> a signed long ?

Yes, making it signed sounds like a good idea.