linux-kernel - Re: [PATCH] i2c: I2C_ELEKTOR should depend on HAS

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Date:	Wed, 17 Aug 2011 11:39:10 +0200
From:	Jean Delvare <khali@...ux-fr.org>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Hans Berglund <hb@...cetec.no>, Jonas Bonn <jonas@...thpole.se>,
	Arnd Bergmann <arnd@...db.de>, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: I2C_ELEKTOR should depend on HAS_IOPORT

On Tue, 16 Aug 2011 21:14:42 +0200, Geert Uytterhoeven wrote:
> Hi Jean,
> 
> On Tue, Aug 16, 2011 at 19:50, Jean Delvare <khali@...ux-fr.org> wrote:
> > On Mon,  8 Aug 2011 13:20:46 +0200, Geert Uytterhoeven wrote:
> >> drivers/i2c/busses/i2c-elektor.c: In function ‘pcf_isa_init’:
> >> drivers/i2c/busses/i2c-elektor.c:153: error: implicit declaration of function ‘ioport_map’
> >> drivers/i2c/busses/i2c-elektor.c:153: warning: assignment makes pointer from integer without a cast
> >> drivers/i2c/busses/i2c-elektor.c: In function ‘elektor_probe’:
> >> drivers/i2c/busses/i2c-elektor.c:287: error: implicit declaration of function ‘ioport_unmap’
> >>
> >> Since commit 82ed223c264def2b15ee4bec2e8c3048092ceb5f ("iomap: make IOPORT/PCI
> >> mapping functions conditional"), ioport_map() is only available on platforms
> >> that set HAS_IOPORT.
> >>
> >> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> >> ---
> >>  drivers/i2c/busses/Kconfig |    2 +-
> >>  1 files changed, 1 insertions(+), 1 deletions(-)
> >>
> >> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> >> index 646068e..d1fc5cf 100644
> >> --- a/drivers/i2c/busses/Kconfig
> >> +++ b/drivers/i2c/busses/Kconfig
> >> @@ -789,7 +789,7 @@ config I2C_ACORN
> >>
> >>  config I2C_ELEKTOR
> >>       tristate "Elektor ISA card"
> >> -     depends on ISA && BROKEN_ON_SMP
> >> +     depends on ISA && HAS_IOPORT && BROKEN_ON_SMP
> >>       select I2C_ALGOPCF
> >>       help
> >>         This supports the PCF8584 ISA bus I2C adapter.  Say Y if you own
> >
> > How can ISA be set if HAS_IOPORT is not? This shouldn't be allowed.
> 
> It's always been like that. With CONFIG_ISA, we have inb() and friends. But not
> ioport_map(), which was introduced more recently.

OK, fair enough. Patch applied, thanks.

-- 
Jean Delvare
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