linux-kernel - Re: [PATCH 00/27] Export I2C and OF module aliases in missing drivers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150730163517.GA13165@dtor-ws>
Date:	Thu, 30 Jul 2015 09:35:17 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Javier Martinez Canillas <javier@....samsung.com>
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	Mark Brown <broonie@...nel.org>, linux-iio@...r.kernel.org,
	linux-fbdev@...r.kernel.org, linux-i2c@...r.kernel.org,
	linux-leds@...r.kernel.org,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	lm-sensors@...sensors.org, Sebastian Reichel <sre@...nel.org>,
	linux-input@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jean Delvare <jdelvare@...e.com>,
	Jonathan Cameron <jic23@...nel.org>,
	linux-media@...r.kernel.org, rtc-linux@...glegroups.com,
	linux-pm@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Wolfram Sang <wsa@...-dreams.de>,
	Takashi Iwai <tiwai@...e.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Sjoerd Simons <sjoerd.simons@...labora.co.uk>,
	Lee Jones <lee.jones@...aro.org>,
	Bryan Wu <cooloney@...il.com>, linux-omap@...r.kernel.org,
	Sakari Ailus <sakari.ailus@....fi>, linux-usb@...r.kernel.org,
	linux-spi@...r.kernel.org, Tony Lindgren <tony@...mide.com>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 00/27] Export I2C and OF module aliases in missing drivers

Hi Javier,

On Thu, Jul 30, 2015 at 06:18:25PM +0200, Javier Martinez Canillas wrote:
> Hello,
> 
> Short version:
> 
> This series add the missing MODULE_DEVICE_TABLE() for OF and I2C tables
> to export that information so modules have the correct aliases built-in
> and autoloading works correctly.
> 
> Longer version:
> 
> Currently it's mandatory for I2C drivers to have an I2C device ID table
> regardless if the device was registered using platform data or OF. This
> is because the I2C core needs an I2C device ID table for two reasons:
> 
> 1) Match the I2C client with a I2C device ID so a struct i2c_device_id
>    is passed to the I2C driver probe() function.
> 
> 2) Export the module aliases from the I2C device ID table so userspace
>    can auto-load the correct module. This is because i2c_device_uevent
>    always reports a MODALIAS of the form i2c:<client->name>.

Why are we not fixing this? We emit specially carved uevent for
ACPI-based devices, why not the same for OF? Platform bus does this...

Thanks.

-- 
Dmitry
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/