[TCP]: Add tcp_dec_pcount_approx int variant

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 3 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index dde04afbe0a4..9d3438f6b52f 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -599,16 +599,21 @@ static inline int tcp_skb_mss(const struct sk_buff *skb)
         return skb_shinfo(skb)->gso_size;
 }
 
-static inline void tcp_dec_pcount_approx(__u32 *count,
-                                         const struct sk_buff *skb)
+static inline void tcp_dec_pcount_approx_int(__u32 *count, const int decr)
 {
         if (*count) {
-                *count -= tcp_skb_pcount(skb);
+                *count -= decr;
                 if ((int)*count < 0)
                         *count = 0;
         }
 }
 
+static inline void tcp_dec_pcount_approx(__u32 *count,
+                                         const struct sk_buff *skb)
+{
+        tcp_dec_pcount_approx_int(count, tcp_skb_pcount(skb));
+}
+
 static inline void tcp_packets_out_inc(struct sock *sk,
                                        const struct sk_buff *skb)
 {