linux-kernel - Re: [PATCH v3 0/4] Export APIs to copy device properties & more

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Date:   Wed, 1 Feb 2017 14:56:09 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Cc:     linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Wolfram Sang <wsa@...-dreams.de>
Subject: Re: [PATCH v3 0/4] Export APIs to copy device properties & more

On Wed, Feb 01, 2017 at 09:31:21AM -0800, Dmitry Torokhov wrote:
> Hi,
> 
> Here is the refreshed series exporting APIs to copy statically declared
> device properties. The reason is that we want to augment ACPI-based devices
> with properties, and drivers usually have a largish DMI table for multiple
> models, so it is desirable to mark everything as __initdata/__initconst,
> and then copy only the entry matching the device we are running on and
> discard the rest.
> 
> The last patch is not really about device property APIs, but rather
> allowing users to attach properties to i2c_board_info, and have them
> attached to instantiated device(s). The reason it is included is because it
> depends on device_add_properties() taking const pointer, which is patch #2.
> 
> If it seems useful I hope Rafael and Wolfram would figure a way to merge it
> :).

By the way, if this series is accepted, it would be very helpful to have
it in a stable branch off 4.10-rcX as I have more patches to
platform/chrome and Atmel touchscreen driver depending on it.

> 
> v3:
> - fix memory leak in property_copy_string_array() pointed out by Mika
>   Westerberg
> 
> v2:
> - addressed Andy's comments
> - added property_entries_free()
> - added patch to allow constify values of property arrays
> - added i2c patch allowing to attach property to devices via board info
> 
> v1:
> - initial posting
> 
> 
> Dmitry Torokhov (4):
>   device property: export code duplicating array of property entries
>   device property: allow to constify properties
>   driver property: constify property arrays values
>   i2c: allow specify device properties in i2c_board_info
> 
>  drivers/base/property.c  | 222 ++++++++++++++++++++++++++++++-----------------
>  drivers/i2c/i2c-core.c   |  16 +++-
>  include/linux/i2c.h      |   3 +
>  include/linux/property.h |  19 ++--
>  4 files changed, 171 insertions(+), 89 deletions(-)
> 
> Thanks.
> 
> -- 
> Dmitry
> 

-- 
Dmitry