Re: [patch 2/2] net, netns_xt: shrink netns_xt members

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On Sat, 04 Jul 2009 10:11:58 +0400
Cyrill Gorcunov <gorcunov@xxxxxxxxxx> wrote:

> In case if kernel was compiled without ebtables support
> there is no need to keep ebt_table pointers in netns_xt
> structure.
> 
> Make it config dependent.
> 
> Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
> ---
> 
> Probably GCC will authomatically shrink the structure
> if the members are not in use. Please review.
> 
>  include/net/netns/x_tables.h |    3 +++
>  1 file changed, 3 insertions(+)
> 
> Index: linux-2.6.git/include/net/netns/x_tables.h
> =====================================================================
> --- linux-2.6.git.orig/include/net/netns/x_tables.h
> +++ linux-2.6.git/include/net/netns/x_tables.h
> @@ -8,8 +8,11 @@ struct ebt_table;
>  
>  struct netns_xt {
>  	struct list_head tables[NFPROTO_NUMPROTO];
> +#if defined(CONFIG_BRIDGE_NF_EBTABLES) || \
> +    defined(CONFIG_BRIDGE_NF_EBTABLES_MODULE)
>  	struct ebt_table *broute_table;
>  	struct ebt_table *frame_filter;
>  	struct ebt_table *frame_nat;
> +#endif
>  };
>  #endif
> 
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Acked-by: Stephen Hemminger <shemminger@xxxxxxxxxx>

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