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Date:   Tue, 30 May 2023 15:39:14 +0100
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Niklas Schnelle <schnelle@linux.ibm.com>
Cc:     Arnd Bergmann <arnd@arndb.de>, Jiri Slaby <jirislaby@kernel.org>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= 
        <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, Arnd Bergmann <arnd@kernel.org>,
        linux-serial@vger.kernel.org
Subject: Re: [PATCH v5 35/44] tty: serial: handle HAS_IOPORT dependencies
Message-ID: <2023053050-prodigal-shine-4d1c@gregkh>
References: <20230522105049.1467313-1-schnelle@linux.ibm.com>
 <20230522105049.1467313-36-schnelle@linux.ibm.com>
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In-Reply-To: <20230522105049.1467313-36-schnelle@linux.ibm.com>
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On Mon, May 22, 2023 at 12:50:40PM +0200, Niklas Schnelle wrote:
> In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
> not being declared. We thus need to add HAS_IOPORT as dependency for
> those drivers using them unconditionally. For 8250 based drivers some
> support MMIO only use so fence only the parts requiring I/O ports.
> 
> Co-developed-by: Arnd Bergmann <arnd@kernel.org>
> Signed-off-by: Arnd Bergmann <arnd@kernel.org>
> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
> ---
>  drivers/tty/Kconfig                  |  4 +--
>  drivers/tty/serial/8250/8250_early.c |  4 +++
>  drivers/tty/serial/8250/8250_pci.c   | 14 +++++++++
>  drivers/tty/serial/8250/8250_port.c  | 44 +++++++++++++++++++++++-----
>  drivers/tty/serial/8250/Kconfig      |  5 ++--
>  drivers/tty/serial/Kconfig           |  2 +-
>  6 files changed, 60 insertions(+), 13 deletions(-)

This doesn't apply at all to my tree, so I'll just let you take it as
there must be some merge issues somewhere:

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>