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Message-ID: <CAB=NE6VAj8bV1RXRjh=wH=J+MQPDfS2K3RgRSCcjLGHqs1m6uw@mail.gmail.com>
Date: Wed, 2 Sep 2015 18:47:29 -0700
From: "Luis R. Rodriguez" <mcgrof@...not-panic.com>
To: Arnd Bergmann <arnd@...db.de>
Cc: "Luis R. Rodriguez" <mcgrof@...not-panic.com>,
linux-arch@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
linux-s390@...r.kernel.org, Borislav Petkov <bp@...e.de>,
Guenter Roeck <linux@...ck-us.net>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit
On Wed, Sep 2, 2015 at 6:44 PM, Luis R. Rodriguez <mcgrof@...e.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.
Luis
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