Commit 082116ff authored by Menglong Dong's avatar Menglong Dong Committed by David S. Miller
Browse files

net: tcp: introduce tcp_drop_reason() 



For TCP protocol, tcp_drop() is used to free the skb when it needs
to be dropped. To make use of kfree_skb_reason() and pass the drop
reason to it, introduce the function tcp_drop_reason(). Meanwhile,
make tcp_drop() an inline call to tcp_drop_reason().

Reviewed-by: default avatarMengen Sun <mengensun@tencent.com>
Reviewed-by: default avatarHao Peng <flyingpeng@tencent.com>
Signed-off-by: default avatarMenglong Dong <imagedong@tencent.com>
Reviewed-by: default avatarEric Dumazet <edumazet@google.com>
Reviewed-by: default avatarDavid Ahern <dsahern@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 48c77bdf

net/ipv4/tcp_input.c

+8 −2
Original line number Diff line number Diff line
@@ -4684,10 +4684,16 @@ static bool tcp_ooo_try_coalesce(struct sock *sk, 
	return res;

}



static void tcp_drop(struct sock *sk, struct sk_buff *skb)

static void tcp_drop_reason(struct sock *sk, struct sk_buff *skb,

			    enum skb_drop_reason reason)

{

	sk_drops_add(sk, skb);

	__kfree_skb(skb);

	kfree_skb_reason(skb, reason);

}



static void tcp_drop(struct sock *sk, struct sk_buff *skb)

{

	tcp_drop_reason(sk, skb, SKB_DROP_REASON_NOT_SPECIFIED);

}



/* This one checks to see if we can put data from the