linux-kernel - Re: [DO NOT MERGE v5 10/37] sh: Common PCI Framework driver support.

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Message-Id: <3acae2ba-e91a-46d2-8748-b2cb1b369063@app.fastmail.com>
Date:   Tue, 05 Dec 2023 14:05:11 +0100
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Yoshinori Sato" <ysato@...rs.sourceforge.jp>,
        linux-sh@...r.kernel.org
Cc:     "Damien Le Moal" <dlemoal@...nel.org>,
        "Rob Herring" <robh+dt@...nel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        "Conor Dooley" <conor+dt@...nel.org>,
        "Geert Uytterhoeven" <geert+renesas@...der.be>,
        "Michael Turquette" <mturquette@...libre.com>,
        "Stephen Boyd" <sboyd@...nel.org>,
        "Dave Airlie" <airlied@...il.com>,
        "Daniel Vetter" <daniel@...ll.ch>,
        "Maarten Lankhorst" <maarten.lankhorst@...ux.intel.com>,
        "Maxime Ripard" <mripard@...nel.org>,
        "Thomas Zimmermann" <tzimmermann@...e.de>,
        "Thomas Gleixner" <tglx@...utronix.de>,
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        Krzysztof Wilczyński <kw@...ux.com>,
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        "Jonathan Corbet" <corbet@....net>,
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        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        "Sam Ravnborg" <sam@...nborg.org>,
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        linux-clk@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-pci@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-fbdev@...r.kernel.org
Subject: Re: [DO NOT MERGE v5 10/37] sh: Common PCI Framework driver support.

On Tue, Dec 5, 2023, at 10:45, Yoshinori Sato wrote:
> +
> +#if defined(CONFIG_PCI) && !defined(CONFIG_GENERIC_IOMAP)
> +void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
> +{
> +	iounmap(addr);
> +}
> +EXPORT_SYMBOL(pci_iounmap);

This definition does not work for addresses that are
returned by ioport_map(), include pci_iomap() on
IORESOURCE_IO.  However, the definition in lib/pci_iomap.c
should work fine, you just need to #define ARCH_WANTS_GENERIC_PCI_IOUNMAP
to get that.

      Arnd