linux-kernel - Re: [PATCH 22/58] move jazzsonic's probe function to .devinit.text

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Message-ID: <20090328104522.GB17386@linux-mips.org>
Date:	Sat, 28 Mar 2009 11:45:22 +0100
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jeff Garzik <jeff@...zik.org>,
	"David S. Miller" <davem@...emloft.net>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Finn Thain <fthain@...egraphics.com.au>,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: [PATCH 22/58] move jazzsonic's probe function to .devinit.text

On Sat, Mar 28, 2009 at 12:26:43AM +0100, Uwe Kleine-König wrote:

> A pointer to jazz_sonic_probe is passed to the core via
> platform_driver_register and so the function must not disappear when the
> .init sections are discarded.  Otherwise (if also 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.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> Cc: Ralf Baechle <ralf@...ux-mips.org>
> Cc: Jeff Garzik <jeff@...zik.org>
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
> Cc: Finn Thain <fthain@...egraphics.com.au>
> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
> Cc: Andrew Morton <akpm@...ux-foundation.org>

Acked-by: Ralf Baechle <ralf@...ux-mips.org>

  Ralf
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