linux-kernel - Re: [PATCH v5 09/15] i2c: acpi: Introduce i2c_acpi_get_i2c

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Message-ID: <20181130105759.GK10650@smile.fi.intel.com>
Date:   Fri, 30 Nov 2018 12:57:59 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Wolfram Sang <wsa@...-dreams.de>
Cc:     Darren Hart <dvhart@...radead.org>,
        platform-driver-x86@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        linux-acpi@...r.kernel.org, Jonathan Cameron <jic23@...nel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-i2c@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 09/15] i2c: acpi: Introduce
 i2c_acpi_get_i2c_resource() helper

On Fri, Nov 30, 2018 at 10:55:33AM +0100, Wolfram Sang wrote:
> On Wed, Nov 28, 2018 at 01:45:29PM +0200, Andy Shevchenko wrote:
> > Besides current two users one more is coming. Definitely makes sense to
> > introduce a helper.
> > 
> > No functional change intended.
> > 
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > Reviewed-by: Hans de Goede <hdegoede@...hat.com>
> > ---
> >  drivers/i2c/i2c-core-acpi.c | 41 ++++++++++++++++++++++++++-----------
> >  include/linux/acpi.h        | 11 ++++++++++
> 
> Any reason this is not in i2c.h?

Yes. As I explained earlier to some people there are facts affecting this:
- the function is operate on top of solely ACPI structures
- there is already similar function for GPIO and it stays like that

On top of this recently I've discovered, that i2c.h has separate #ifdef for I2C
and ACPI which theoretically might produce a linker error in some cases.

-- 
With Best Regards,
Andy Shevchenko