linux-kernel - Re: [PATCH v5 07/44] counter: add HAS_IOPORT

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Message-ID: <f858c964f2fbe2fa5a92652c7d5022af7e3b76f1.camel@linux.ibm.com>
Date:   Fri, 09 Jun 2023 16:57:27 +0200
From:   Niklas Schnelle <schnelle@...ux.ibm.com>
To:     William Breathitt Gray <wbg@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        William Breathitt Gray <william.gray@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-pci@...r.kernel.org, Arnd Bergmann <arnd@...nel.org>,
        linux-iio@...r.kernel.org
Subject: Re: [PATCH v5 07/44] counter: add HAS_IOPORT_MAP dependency

On Thu, 2023-06-08 at 10:59 -0400, William Breathitt Gray wrote:
> On Mon, May 22, 2023 at 12:50:12PM +0200, Niklas Schnelle wrote:
> > The 104_QUAD_8 counter driver uses devm_ioport_map() without depending
> > on HAS_IOPORT_MAP. This means the driver is not usable on platforms such
> > as s390 which do not support I/O port mapping. Add the missing
> > HAS_IOPORT_MAP dependency to make this explicit.
> > 
> > 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>
> > ---
> >  drivers/counter/Kconfig | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/counter/Kconfig b/drivers/counter/Kconfig
> > index 4228be917038..e65a2bf178b8 100644
> > --- a/drivers/counter/Kconfig
> > +++ b/drivers/counter/Kconfig
> > @@ -15,6 +15,7 @@ if COUNTER
> >  config 104_QUAD_8
> >  	tristate "ACCES 104-QUAD-8 driver"
> >  	depends on (PC104 && X86) || COMPILE_TEST
> > +	depends on HAS_IOPORT_MAP
> >  	select ISA_BUS_API
> >  	help
> >  	  Say yes here to build support for the ACCES 104-QUAD-8 quadrature
> > -- 
> > 2.39.2
> > 
> 
> This has a minor merge conflict with the current Kconfig in the Counter
> tree. Would you rebase on the counter-next branch and resubmit?
> 
> Thanks,
> 
> William Breathitt Gray

Sure can do. That said, using a three way merge as below doe handle the
conflict correctly:

% git checkout counter/counter-next
% b4 am -P _ 'https://lore.kernel.org/all/20230522105049.1467313-8-schnelle@linux.ibm.com/'
% git am -3 v5_20230522_schnelle_counter_add_has_ioport_map_dependency.mbx