linux-kernel - Re: [PATCH 25/58] move macsonic's probe function to .devinit.text

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Message-ID: <10f740e80903280139i4a6d4a54y1a40eb376d3b89fa@mail.gmail.com>
Date:	Sat, 28 Mar 2009 09:39:10 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jeff Garzik <jgarzik@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Finn Thain <fthain@...egraphics.com.au>,
	linux-m68k@...ts.linux-m68k.org
Subject: Re: [PATCH 25/58] move macsonic's probe function to .devinit.text

2009/3/28 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>:
> A pointer to mac_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: Jeff Garzik <jgarzik@...hat.com>
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Finn Thain <fthain@...egraphics.com.au>
> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> ---
>  drivers/net/macsonic.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/macsonic.c b/drivers/net/macsonic.c
> index 527166e..d4f913b 100644
> --- a/drivers/net/macsonic.c
> +++ b/drivers/net/macsonic.c
> @@ -555,7 +555,7 @@ static int __init mac_nubus_sonic_probe(struct net_device *dev)
>        return macsonic_init(dev);
>  }
>
> -static int __init mac_sonic_probe(struct platform_device *pdev)
> +static int __devinit mac_sonic_probe(struct platform_device *pdev)
>  {
>        struct net_device *dev;
>        struct sonic_local *lp;

mac_{onboard,nubus}_sonic_probe() (called by mac_sonic_probe()) have the
same problem.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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