linux-kernel - Re: [PATCH] PCI: Move ATS declarations to linux/pci.h

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Message-ID: <20190830161840.GA9733@infradead.org>
Date:   Fri, 30 Aug 2019 09:18:40 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Krzysztof Wilczynski <kw@...ux.com>
Cc:     Bjorn Helgaas <helgaas@...nel.org>, Will Deacon <will@...nel.org>,
        Joerg Roedel <joro@...tes.org>, linux-kernel@...r.kernel.org,
        iommu@...ts.linux-foundation.org, linux-pci@...r.kernel.org,
        Robin Murphy <robin.murphy@....com>,
        David Woodhouse <dwmw2@...radead.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] PCI: Move ATS declarations to linux/pci.h

On Fri, Aug 30, 2019 at 05:07:56PM +0200, Krzysztof Wilczynski wrote:
> Move ATS function prototypes from include/linux/pci-ats.h to
> include/linux/pci.h so users only need to include <linux/pci.h>:

Why is that so important?  Very few PCI(e) device drivers use ATS,
so keeping it out of everyones include hell doesn't seem all bad.