linux-kernel - Re: [PATCH 10/58] move corgi-ssp's probe function to .devinit.text

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Message-ID: <f17812d70903280231n4f4029a8m8f4dfe26e4168daa@mail.gmail.com>
Date:	Sat, 28 Mar 2009 17:31:05 +0800
From:	Eric Miao <eric.y.miao@...il.com>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Eric Miao <eric.miao@...vell.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Paul Sokolovsky <pmiscml@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Liam Girdwood <liam.girdwood@...fsonmicro.com>
Subject: Re: [PATCH 10/58] move corgi-ssp's probe function to .devinit.text

2009/3/28 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>:
> A pointer to corgi_ssp_probe is passed to the core via
> platform_driver_register and so the function must not disappear when the
> .init sections are discarded.  Otherwise (when having HOTPLUG=y)
> unbinding and binding a device to the driver via sysfs will result in an
> oops as does a device being registered late.
>
> An alternative to this patch is using platform_driver_probe instead of
> platform_driver_register plus removing the pointer to the probe function
> from the struct platform_driver.
>

These files are supposed to be deprecated and I'm planning to remove
them once drivers/input/touchscreen/corgi-ts.c begins its migration to
ads7846.c (with a posted fix currently queued in the -mm tree). Other
than corgi-ts.c, there will be no reference to them.
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