Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   "Martin K. Petersen" <martin.petersen@oracle.com>
To:     Arnd Bergmann <arnd@arndb.de>,
        Richard Cochran <richardcochran@gmail.com>,
        Niklas Schnelle <schnelle@linux.ibm.com>
Cc:     "Martin K . Petersen" <martin.petersen@oracle.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Bjorn Helgaas <bhelgaas@google.com>,
        =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= 
        <u.kleine-koenig@pengutronix.de>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Alan Stern <stern@rowland.harvard.edu>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
        linux-pci@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH v5 00/44] treewide: Remove I/O port accessors for HAS_IOPORT=n
Date:   Wed,  7 Jun 2023 21:42:21 -0400
Message-Id: <168618844281.2636448.12578848394814985642.b4-ty@oracle.com>
In-Reply-To: <20230522105049.1467313-1-schnelle@linux.ibm.com>
References: <20230522105049.1467313-1-schnelle@linux.ibm.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
Precedence: bulk

On Mon, 22 May 2023 12:50:05 +0200, Niklas Schnelle wrote:

> Some platforms such as s390 do not support PCI I/O spaces. On such platforms
> I/O space accessors like inb()/outb() are stubs that can never actually work.
> The way these stubs are implemented in asm-generic/io.h leads to compiler
> warnings because any use will be a NULL pointer access on these platforms. In
> a previous patch we tried handling this with a run-time warning on access. This
> approach however was rejected by Linus[0] with the argument that this really
> should be a compile-time check and, though a much more invasive change, we
> believe that is indeed the right approach.
> 
> [...]

Applied to 6.5/scsi-queue, thanks!

[21/44] mpt fusion: add HAS_IOPORT dependencies
        https://git.kernel.org/mkp/scsi/c/c3f903472ffa
[31/44] scsi: add HAS_IOPORT dependencies
        https://git.kernel.org/mkp/scsi/c/b58b2ba351b0

-- 
Martin K. Petersen	Oracle Linux Engineering