net: dccp: ccids: lib: packet_history: use swap macro in tfrc_rx_hist_swap

Make use of the swap macro and remove unnecessary variable tmp.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dccp/ccids/lib/packet_history.c b/net/dccp/ccids/lib/packet_history.c
index 08df7a3acb3d8c6c58df9d6b34a21147c962bc16..876e18592d715942d1070791a52c5e65918682da 100644 (file)
--- a/net/dccp/ccids/lib/packet_history.c
+++ b/net/dccp/ccids/lib/packet_history.c
@@ -149,10 +149,8 @@ static void tfrc_rx_hist_swap(struct tfrc_rx_hist *h, const u8 a, const u8 b)
 {
        const u8 idx_a = tfrc_rx_hist_index(h, a),
                 idx_b = tfrc_rx_hist_index(h, b);
-       struct tfrc_rx_hist_entry *tmp = h->ring[idx_a];
 
-       h->ring[idx_a] = h->ring[idx_b];
-       h->ring[idx_b] = tmp;
+       swap(h->ring[idx_a], h->ring[idx_b]);
 }
 
 /*