axienet: Move packet statistic out of while loop

Use variable instead of memory accesses.

Signed-off-by: Michal Simek <monstr@monstr.eu>

diff --git a/drivers/net/xilinx_axienet_main.c b/drivers/net/xilinx_axienet_main.c
index 9a7fb4fdd67b37d73c7605a0705ce051bdd293af..194b49d42642ae2eaa4918b01877357bb25e5ec0 100644 (file)
--- a/drivers/net/xilinx_axienet_main.c
+++ b/drivers/net/xilinx_axienet_main.c
@@ -677,6 +677,8 @@ static void axienet_start_xmit_done(struct net_device *ndev)
        struct axienet_local *lp = netdev_priv(ndev);
        struct axidma_bd *cur_p;
        unsigned int status = 0;
+       u32 size = 0;
+       u32 packets = 0;
 
        cur_p = &lp->tx_bd_v[lp->tx_bd_ci];
        status = cur_p->status;
@@ -695,9 +697,8 @@ static void axienet_start_xmit_done(struct net_device *ndev)
                cur_p->app4 = 0;
                cur_p->status = 0;
 
-               ndev->stats.tx_packets++;
-               ndev->stats.tx_bytes += (status &
-                                       XAXIDMA_BD_STS_ACTUAL_LEN_MASK);
+               size += status & XAXIDMA_BD_STS_ACTUAL_LEN_MASK;
+               packets++;
 
                lp->tx_bd_ci = ++lp->tx_bd_ci % TX_BD_NUM;
 
@@ -705,6 +706,9 @@ static void axienet_start_xmit_done(struct net_device *ndev)
                status = cur_p->status;
        }
 
+       ndev->stats.tx_packets += packets;
+       ndev->stats.tx_bytes += size;
+
        netif_wake_queue(ndev);
 }
 
@@ -826,6 +830,8 @@ static void axienet_recv(struct net_device *ndev)
        dma_addr_t tail_p;
        u32 length;
        u32 csumstatus;
+       u32 size = 0;
+       u32 packets = 0;
 
        tail_p = lp->rx_bd_p + sizeof(*lp->rx_bd_v) * lp->rx_bd_ci;
        cur_p = &lp->rx_bd_v[lp->rx_bd_ci];
@@ -860,8 +866,8 @@ static void axienet_recv(struct net_device *ndev)
 
                netif_rx(skb);
 
-               ndev->stats.rx_packets++;
-               ndev->stats.rx_bytes += length;
+               size += length;
+               packets++;
 
                new_skb = netdev_alloc_skb_ip_align(ndev,
                                                lp->max_frm_size);
@@ -882,6 +888,10 @@ static void axienet_recv(struct net_device *ndev)
 
                cur_p = &lp->rx_bd_v[lp->rx_bd_ci];
        }
+
+       ndev->stats.rx_packets += packets;
+       ndev->stats.rx_bytes += size;
+
        axienet_dma_out32(lp, XAXIDMA_RX_TDESC_OFFSET, tail_p);
 }