Merge tag 'spi-fix-v4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

[cascardo/linux.git] / drivers / infiniband / ulp / ipoib / ipoib_ib.c

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index be11d5d..830fecb 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -128,16 +128,15 @@ static struct sk_buff *ipoib_alloc_rx_skb(struct net_device *dev, int id)
 
        buf_size = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
 
-       skb = dev_alloc_skb(buf_size + IPOIB_ENCAP_LEN);
+       skb = dev_alloc_skb(buf_size + IPOIB_HARD_LEN);
        if (unlikely(!skb))
                return NULL;
 
        /*
-        * IB will leave a 40 byte gap for a GRH and IPoIB adds a 4 byte
-        * header.  So we need 4 more bytes to get to 48 and align the
-        * IP header to a multiple of 16.
+        * the IP header will be at IPOIP_HARD_LEN + IB_GRH_BYTES, that is
+        * 64 bytes aligned
         */
-       skb_reserve(skb, 4);
+       skb_reserve(skb, sizeof(struct ipoib_pseudo_header));
 
        mapping = priv->rx_ring[id].mapping;
        mapping[0] = ib_dma_map_single(priv->ca, skb->data, buf_size,
@@ -253,8 +252,7 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
        skb_pull(skb, IB_GRH_BYTES);
 
        skb->protocol = ((struct ipoib_header *) skb->data)->proto;
-       skb_reset_mac_header(skb);
-       skb_pull(skb, IPOIB_ENCAP_LEN);
+       skb_add_pseudo_hdr(skb);
 
        ++dev->stats.rx_packets;
        dev->stats.rx_bytes += skb->len;