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From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Tue, 8 Sep 2015 02:54:47 -0700
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Subject: Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit
To: Arnd Bergmann <arnd@arndb.de>
Cc: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>, linux-arch@vger.kernel.org,
        Ingo Molnar <mingo@kernel.org>, schwidefsky@de.ibm.com,
        heiko.carstens@de.ibm.com, linux-s390@vger.kernel.org,
        Borislav Petkov <bp@suse.de>, Guenter Roeck <linux@roeck-us.net>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Steven Rostedt <rostedt@goodmis.org>
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On Wed, Sep 2, 2015 at 6:47 PM, Luis R. Rodriguez
<mcgrof@do-not-panic.com> wrote:
> On Wed, Sep 2, 2015 at 6:44 PM, Luis R. Rodriguez <mcgrof@suse.com> wrote:
>>> I don't think we really need to spell it out here. s390 PCI is different
>>> from everybody else's in a lot of ways, so a simple 'depends on PCI &&
>>> !S390' for CONFIG_PCI_IOMAP seems simpler and more intuitive.
>>
>> Sure that would work as well.
>
> But on second thought it still would leave us reactive to S390, this
> solution would get folks extending this asm-generic stuff to also have
> something in place for S390, even if its just returning NULL.

Arnd, thoughts?

 Luis