netdev - Re: [PATCH] move xtsonic's probe function to .devinit.text

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Message-ID: <4A665691.6080203@zankel.net>
Date:	Tue, 21 Jul 2009 17:00:17 -0700
From:	Chris Zankel <chris@...kel.net>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
CC:	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: Re: [PATCH] move xtsonic's probe function to .devinit.text

Hi Uwe,

I will add it to the Xtensa tree in the next couple of days (together 
with other patches that have piled up - still fighting a compiler issue).

Thanks,
-Chris


Uwe Kleine-König wrote:
> A pointer to xtsonic_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: Chris Zankel <chris@...kel.net>
>   
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Greg Kroah-Hartman <gregkh@...e.de>
> Cc: netdev@...r.kernel.org
>
> ---
>  drivers/net/xtsonic.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/xtsonic.c b/drivers/net/xtsonic.c
> index 5a4ad15..0c44135 100644
> --- a/drivers/net/xtsonic.c
> +++ b/drivers/net/xtsonic.c
> @@ -239,7 +239,7 @@ out:
>   * Actually probing is superfluous but we're paranoid.
>   */
>  
> -int __init xtsonic_probe(struct platform_device *pdev)
> +int __devinit xtsonic_probe(struct platform_device *pdev)
>  {
>  	struct net_device *dev;
>  	struct sonic_local *lp;
>   

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