linux-kernel - Re: [PATCH v3 1/3] asm-generic: Support NO_IOPORT_MAP in pci

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Date:   Tue, 26 Jul 2022 06:25:42 +0900
From:   Stafford Horne <shorne@...il.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, Arnd Bergmann <arnd@...db.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        linux-arch@...r.kernel.org
Subject: Re: [PATCH v3 1/3] asm-generic: Support NO_IOPORT_MAP in pci_iomap.h

On Mon, Jul 25, 2022 at 12:10:59PM -0500, Bjorn Helgaas wrote:
> On Mon, Jul 25, 2022 at 11:07:35AM +0900, Stafford Horne wrote:
> > When building OpenRISC PCI which has no ioport_map we get the following build
> > error.
> > 
> >     lib/pci_iomap.c: In function 'pci_iomap_range':
> >       CC      drivers/i2c/i2c-core-base.o
> >     ./include/asm-generic/pci_iomap.h:29:41: error: implicit declaration of function 'ioport_map'; did you mean 'ioremap'? [-Werror=implicit-function-declaration]
> >        29 | #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
> >           |                                         ^~~~~~~~~~
> >     lib/pci_iomap.c:44:24: note: in expansion of macro '__pci_ioport_map'
> >        44 |                 return __pci_ioport_map(dev, start, len);
> >           |                        ^~~~~~~~~~~~~~~~
> > 
> > This patch adds a NULL definition of __pci_ioport_map for architetures
> > which do not support ioport_map.
> > 
> > Suggested-by: Arnd Bergmann <arnd@...db.de>
> > Signed-off-by: Stafford Horne <shorne@...il.com>
> 
> FWIW,
> 
> Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>

Thank you,

> I assume this will go via some other tree; let me know if otherwise.

Yes I plan to send this along with the other patches via the OpenRISC tree.

-Stafford