linux-kernel - Re: [PATCH 1/1] i2c: align i2c_device

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Date:	Mon, 19 May 2008 21:00:03 +0200
From:	Jean Delvare <khali@...ux-fr.org>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	i2c@...sensors.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] i2c: align i2c_device_id

Hi Jiri,

On Mon, 19 May 2008 15:18:44 +0200, Jiri Slaby wrote:
> Align i2c_device_id.driver_data to 8 bytes to not fail on crossbuilds.
> 
> (Added in d2653e92732bd3911feff6bee5e23dbf959381db.)
> 
> Signed-off-by: Jiri Slaby <jirislaby@...il.com>
> Cc: Jean Delvare <khali@...ux-fr.org>
> ---
>  include/linux/mod_devicetable.h |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
> index a37db57..1fd03e7 100644
> --- a/include/linux/mod_devicetable.h
> +++ b/include/linux/mod_devicetable.h
> @@ -384,7 +384,8 @@ struct virtio_device_id {
>  
>  struct i2c_device_id {
>  	char name[I2C_NAME_SIZE];
> -	kernel_ulong_t driver_data;	/* Data private to the driver */
> +	kernel_ulong_t driver_data	/* Data private to the driver */
> +			__attribute__((aligned(sizeof(kernel_ulong_t))));
>  };
>  

Thanks for this patch, it's in my i2c tree now and will be sent to
Linus by the end of the week. I wasn't aware of this possible alignment
issue, sorry.

-- 
Jean Delvare
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