Re: [PATCHv3 net-next 06/12] ndisc: add __ndisc_fill_addr_option function

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Alexander Aring wrote:
> This patch adds __ndisc_fill_addr_option as low-level function for
> ndisc_fill_addr_option which doesn't depend on net_device parameter.
> 
> Cc: David S. Miller <davem@xxxxxxxxxxxxx>
> Cc: Alexey Kuznetsov <kuznet@xxxxxxxxxxxxx>
> Cc: James Morris <jmorris@xxxxxxxxx>
> Cc: Hideaki YOSHIFUJI <yoshfuji@xxxxxxxxxxxxxx>
> Cc: Patrick McHardy <kaber@xxxxxxxxx>
> Signed-off-by: Alexander Aring <aar@xxxxxxxxxxxxxx>


Acked-by: YOSHIFUJI Hideaki <yoshfuji@xxxxxxxxxxxxxx>

> ---
>  net/ipv6/ndisc.c | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
> index c245895..a7b9468 100644
> --- a/net/ipv6/ndisc.c
> +++ b/net/ipv6/ndisc.c
> @@ -150,11 +150,10 @@ struct neigh_table nd_tbl = {
>  };
>  EXPORT_SYMBOL_GPL(nd_tbl);
>  
> -static void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data)
> +static void __ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data,
> +				     int data_len, int pad)
>  {
> -	int pad   = ndisc_addr_option_pad(skb->dev->type);
> -	int data_len = skb->dev->addr_len;
> -	int space = ndisc_opt_addr_space(skb->dev);
> +	int space = __ndisc_opt_addr_space(data_len, pad);
>  	u8 *opt = skb_put(skb, space);
>  
>  	opt[0] = type;
> @@ -172,6 +171,13 @@ static void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data)
>  		memset(opt, 0, space);
>  }
>  
> +static inline void ndisc_fill_addr_option(struct sk_buff *skb, int type,
> +					  void *data)
> +{
> +	__ndisc_fill_addr_option(skb, type, data, skb->dev->addr_len,
> +				 ndisc_addr_option_pad(skb->dev->type));
> +}
> +
>  static struct nd_opt_hdr *ndisc_next_option(struct nd_opt_hdr *cur,
>  					    struct nd_opt_hdr *end)
>  {
> 

-- 
Hideaki Yoshifuji <hideaki.yoshifuji@xxxxxxxxxxxxxxxx>
Technical Division, MIRACLE LINUX CORPORATION
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