RE: [PATCH bpf-next 1/3] bpf, sk_msg: Let ULP restore sk_proto and write_space callback

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Jakub Sitnicki wrote:
> We don't need a fallback for when the socket is not using ULP.
> tcp_update_ulp handles this case exactly the same as we do in
> sk_psock_restore_proto. Get rid of the duplicated code.
> 
> Signed-off-by: Jakub Sitnicki <jakub@xxxxxxxxxxxxxx>
> ---
>  include/linux/skmsg.h | 11 +----------
>  1 file changed, 1 insertion(+), 10 deletions(-)
> 
> diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h
> index 14d61bba0b79..8605947d6c08 100644
> --- a/include/linux/skmsg.h
> +++ b/include/linux/skmsg.h
> @@ -361,16 +361,7 @@ static inline void sk_psock_restore_proto(struct sock *sk,
>  	sk->sk_prot->unhash = psock->saved_unhash;
>  
>  	if (psock->sk_proto) {
> -		struct inet_connection_sock *icsk = inet_csk(sk);
> -		bool has_ulp = !!icsk->icsk_ulp_data;
> -
> -		if (has_ulp) {
> -			tcp_update_ulp(sk, psock->sk_proto,
> -				       psock->saved_write_space);
> -		} else {
> -			sk->sk_prot = psock->sk_proto;
> -			sk->sk_write_space = psock->saved_write_space;
> -		}
> +		tcp_update_ulp(sk, psock->sk_proto, psock->saved_write_space);
>  		psock->sk_proto = NULL;
>  	} else {
>  		sk->sk_write_space = psock->saved_write_space;
> -- 
> 2.24.1
> 

Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>



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