Subject: Re: [RFC 00/32] Kconfig: Introduce HAS_IOPORT and LEGACY_PCI options
To:     Niklas Schnelle <schnelle@linux.ibm.com>,
        Arnd Bergmann <arnd@kernel.org>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Nick Hu <nickhu@andestech.com>,
        Greentime Hu <green.hu@gmail.com>,
        Vincent Chen <deanbo422@gmail.com>,
        "Paul Walmsley" <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>, Guo Ren <guoren@kernel.org>
CC:     <linux-kernel@vger.kernel.org>, <linux-arch@vger.kernel.org>,
        <linux-pci@vger.kernel.org>, <linux-riscv@lists.infradead.org>,
        <linux-csky@vger.kernel.org>
References: <20211227164317.4146918-1-schnelle@linux.ibm.com>
From:   John Garry <john.garry@huawei.com>
Message-ID: <00c5a9e2-1876-e8d1-68f3-2be6d3bd38cb@huawei.com>
Date:   Thu, 6 Jan 2022 17:45:24 +0000
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Hi Niklas,

On 27/12/2021 16:42, Niklas Schnelle wrote:
> I performed the following testing:
> 
> - On s390 this series on top of v5.16-rc7 builds with allyesconfig i.e. the
>    HAS_IOPORT=n case.

Are you sure that allyesconfig gives HAS_IOPORT=n? Indeed I see no 
mechanism is always disallow HAS_IOPORT for s390 (which I think we would 
want).

> It also builds with defconfig and the resulting kernel
>    appears fully functional including tests with PCI devices.

Thanks,
Johnw