Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 20 insertions, 6 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index c9fad6fb629b..2d8d6adf1616 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -40,7 +40,6 @@
 #ifndef _SOCK_H
 #define _SOCK_H
 
-#include <linux/config.h>
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/cache.h>
@@ -132,6 +131,7 @@ struct sock_common {
   *     @sk_receive_queue: incoming packets
   *     @sk_wmem_alloc: transmit queue bytes committed
   *     @sk_write_queue: Packet sending queue
+  *     @sk_async_wait_queue: DMA copied packets
   *     @sk_omem_alloc: "o" is "option" or "other"
   *     @sk_wmem_queued: persistent queue size
   *     @sk_forward_alloc: space allocated forward
@@ -205,6 +205,7 @@ struct sock {
         atomic_t                sk_omem_alloc;
         struct sk_buff_head     sk_receive_queue;
         struct sk_buff_head     sk_write_queue;
+        struct sk_buff_head     sk_async_wait_queue;
         int                     sk_wmem_queued;
         int                     sk_forward_alloc;
         gfp_t                   sk_allocation;
@@ -871,10 +872,7 @@ static inline int sk_filter(struct sock *sk, struct sk_buff *skb, int needlock)
                 if (filter) {
                         unsigned int pkt_len = sk_run_filter(skb, filter->insns,
                                                              filter->len);
-                        if (!pkt_len)
-                                err = -EPERM;
-                        else
-                                skb_trim(skb, pkt_len);
+                        err = pkt_len ? pskb_trim(skb, pkt_len) : -EPERM;
                 }
 
                 if (needlock)
@@ -1032,9 +1030,13 @@ static inline void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
 {
         __sk_dst_set(sk, dst);
         sk->sk_route_caps = dst->dev->features;
+        if (sk->sk_route_caps & NETIF_F_GSO)
+                sk->sk_route_caps |= NETIF_F_TSO;
         if (sk->sk_route_caps & NETIF_F_TSO) {
                 if (sock_flag(sk, SOCK_NO_LARGESEND) || dst->header_len)
                         sk->sk_route_caps &= ~NETIF_F_TSO;
+                else 
+                        sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM;
         }
 }
 
@@ -1267,15 +1269,27 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
  * sk_eat_skb - Release a skb if it is no longer needed
  * @sk: socket to eat this skb from
  * @skb: socket buffer to eat
+ * @copied_early: flag indicating whether DMA operations copied this data early
  *
  * This routine must be called with interrupts disabled or with the socket
  * locked so that the sk_buff queue operation is ok.
 */
-static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb)
+#ifdef CONFIG_NET_DMA
+static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_early)
+{
+        __skb_unlink(skb, &sk->sk_receive_queue);
+        if (!copied_early)
+                __kfree_skb(skb);
+        else
+                __skb_queue_tail(&sk->sk_async_wait_queue, skb);
+}
+#else
+static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_early)
 {
         __skb_unlink(skb, &sk->sk_receive_queue);
         __kfree_skb(skb);
 }
+#endif
 
 extern void sock_enable_timestamp(struct sock *sk);
 extern int sock_get_timestamp(struct sock *, struct timeval __user *);