On Wed, Feb 23, 2011 at 12:19:57PM -0800, Haiyang Zhang wrote:
> The patch fixed the code depending on the exact order of fields in the
> struct blkvsc_driver_context. Now, we use container_of() instead of type
> casting from the first field to the container struct.
> 
> Signed-off-by: Haiyang Zhang <[email protected]>
> Signed-off-by: K. Y. Srinivasan <[email protected]>
> Signed-off-by: Hank Janssen <[email protected]>
> 
> ---
>  drivers/staging/hv/blkvsc_drv.c |    8 +++-----
>  1 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
> index 293ab8e..8f38895 100644
> --- a/drivers/staging/hv/blkvsc_drv.c
> +++ b/drivers/staging/hv/blkvsc_drv.c
> @@ -117,8 +117,6 @@ struct block_device_context {
>  
>  /* Per driver */
>  struct blkvsc_driver_context {
> -     /* !! These must be the first 2 fields !! */
> -     /* FIXME this is a bug! */
>       struct driver_context drv_ctx;
>       struct storvsc_driver_object drv_obj;
>  };
> @@ -248,7 +246,7 @@ static int blkvsc_probe(struct device *device)
>       struct driver_context *driver_ctx =
>                               driver_to_driver_context(device->driver);
>       struct blkvsc_driver_context *blkvsc_drv_ctx =
> -                             (struct blkvsc_driver_context *)driver_ctx;
> +             container_of(driver_ctx, struct blkvsc_driver_context, drv_ctx);

Same container_of() complaint here, make it a macro or inline function.

thanks,

greg k-h
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