[RFC PATCH 2/3] net: macb: move checksum clearing outside of spinlock

[Claudiu Beznea]

Move checksum clearing outside of spinlock. The SKB is protected by
networking lock (HARD_TX_LOCK()).

Signed-off-by: Claudiu Beznea <claudiu.bez...@microchip.com>
---
 drivers/net/ethernet/cadence/macb_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c 
b/drivers/net/ethernet/cadence/macb_main.c
index 860436474c3e..1c12afe4a0ce 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -1662,6 +1662,11 @@ static netdev_tx_t macb_start_xmit(struct sk_buff *skb, 
struct net_device *dev)
        bool is_lso, is_udp = 0;
        netdev_tx_t ret = NETDEV_TX_OK;
 
+       if (macb_clear_csum(skb)) {
+               dev_kfree_skb_any(skb);
+               return ret;
+       }
+
        is_lso = (skb_shinfo(skb)->gso_size != 0);
 
        if (is_lso) {
@@ -1717,11 +1722,6 @@ static netdev_tx_t macb_start_xmit(struct sk_buff *skb, 
struct net_device *dev)
                return NETDEV_TX_BUSY;
        }
 
-       if (macb_clear_csum(skb)) {
-               dev_kfree_skb_any(skb);
-               goto unlock;
-       }
-
        /* Map socket buffer for DMA transfer */
        if (!macb_tx_map(bp, queue, skb, hdrlen)) {
                dev_kfree_skb_any(skb);
-- 
2.7.4