linux-kernel - Re: [PATCH v8 4/5] tty: serial: handle HAS

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Message-ID: <2024101112-tile-cupping-3431@gregkh>
Date: Fri, 11 Oct 2024 08:09:20 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Niklas Schnelle <schnelle@...ux.ibm.com>
Cc: Brian Cain <bcain@...cinc.com>, Marcel Holtmann <marcel@...tmann.org>,
	Luiz Augusto von Dentz <luiz.dentz@...il.com>,
	Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Dave Airlie <airlied@...hat.com>, Gerd Hoffmann <kraxel@...hat.com>,
	Lucas De Marchi <lucas.demarchi@...el.com>,
	Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	Jiri Slaby <jirislaby@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	"Maciej W. Rozycki" <macro@...am.me.uk>,
	Heiko Carstens <hca@...ux.ibm.com>, linux-kernel@...r.kernel.org,
	linux-hexagon@...r.kernel.org, linux-bluetooth@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, virtualization@...ts.linux.dev,
	spice-devel@...ts.freedesktop.org, intel-xe@...ts.freedesktop.org,
	linux-serial@...r.kernel.org, linux-arch@...r.kernel.org,
	Arnd Bergmann <arnd@...nel.org>
Subject: Re: [PATCH v8 4/5] tty: serial: handle HAS_IOPORT dependencies

On Tue, Oct 08, 2024 at 02:39:45PM +0200, Niklas Schnelle wrote:
> In a future patch HAS_IOPORT=n will disable inb()/outb() and friends at
> compile time. We thus need to add HAS_IOPORT as dependency for those
> drivers using them unconditionally. Some 8250 serial drivers support
> MMIO only use, so fence only the parts requiring I/O ports and print an
> error message if a device can't be supported with the current
> configuration.
> 
> Co-developed-by: Arnd Bergmann <arnd@...nel.org>
> Signed-off-by: Arnd Bergmann <arnd@...nel.org>
> Signed-off-by: Niklas Schnelle <schnelle@...ux.ibm.com>
> ---

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