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.h

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 7b8d2d9..da12717 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -63,6 +63,8 @@ enum ipoib_flush_level {
 
 enum {
        IPOIB_ENCAP_LEN           = 4,
+       IPOIB_PSEUDO_LEN          = 20,
+       IPOIB_HARD_LEN            = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN,
 
        IPOIB_UD_HEAD_SIZE        = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
        IPOIB_UD_RX_SG            = 2, /* max buffer needed for 4K mtu */
@@ -134,15 +136,21 @@ struct ipoib_header {
        u16     reserved;
 };
 
-struct ipoib_cb {
-       struct qdisc_skb_cb     qdisc_cb;
-       u8                      hwaddr[INFINIBAND_ALEN];
+struct ipoib_pseudo_header {
+       u8      hwaddr[INFINIBAND_ALEN];
 };
 
-static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb)
+static inline void skb_add_pseudo_hdr(struct sk_buff *skb)
 {
-       BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb));
-       return (struct ipoib_cb *)skb->cb;
+       char *data = skb_push(skb, IPOIB_PSEUDO_LEN);
+
+       /*
+        * only the ipoib header is present now, make room for a dummy
+        * pseudo header and set skb field accordingly
+        */
+       memset(data, 0, IPOIB_PSEUDO_LEN);
+       skb_reset_mac_header(skb);
+       skb_pull(skb, IPOIB_HARD_LEN);
 }
 
 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */