Subject: Re: [PATCH net-next 3/7] sctp: export some functions for sctp_diag in inet_diag

From: Marcelo Ricardo Leitner <[email-masked]>
Date: Thu, 7 Apr 2016 15:17:16 -0300

On Tue, Apr 05, 2016 at 12:06:28PM +0800, Xin Long wrote:
> inet_diag_msg_common_fill is used to fill the diag msg common info,
> we need to use it in sctp_diag as well, so export it.
> 
> We also add inet_diag_get_handler() to access inet_diag_table in sctp
> diag.
> 
> Signed-off-by: Xin Long <[email-masked]>
> ---
>  net/ipv4/inet_diag.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
> index bd591eb..29121a6 100644
> --- a/net/ipv4/inet_diag.c
> +++ b/net/ipv4/inet_diag.c
> @@ -66,7 +66,13 @@ static void inet_diag_unlock_handler(const struct inet_diag_handler *handler)
>  	mutex_unlock(&inet_diag_table_mutex);
>  }
>  
> -static void inet_diag_msg_common_fill(struct inet_diag_msg *r, struct sock *sk)
> +struct inet_diag_handler *inet_diag_get_handler(int proto)

It needs to return it as const, as inet_diag_table is also declared as
const, so we don't loose the qualifier.

> +{
> +	return inet_diag_table[proto];
> +}
> +EXPORT_SYMBOL_GPL(inet_diag_get_handler);
> +
> +void inet_diag_msg_common_fill(struct inet_diag_msg *r, struct sock *sk)
>  {
>  	r->idiag_family = sk->sk_family;
>  
> @@ -89,6 +95,7 @@ static void inet_diag_msg_common_fill(struct inet_diag_msg *r, struct sock *sk)
>  	r->id.idiag_dst[0] = sk->sk_daddr;
>  	}
>  }
> +EXPORT_SYMBOL_GPL(inet_diag_msg_common_fill);
>  
>  static size_t inet_sk_attr_size(void)
>  {
> -- 
> 2.1.0
> 
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