6 files changed, 52 insertions, 3 deletions

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 4ad0673b1995..2f335e966011 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -1,7 +1,6 @@
 #ifndef _LINUX_FB_H
 #define _LINUX_FB_H
 
-#include <linux/backlight.h>
 #include <asm/types.h>
 
 /* Definitions of frame buffers                                         */
@@ -381,6 +380,7 @@ struct fb_cursor {
 #include <linux/workqueue.h>
 #include <linux/notifier.h>
 #include <linux/list.h>
+#include <linux/backlight.h>
 #include <asm/io.h>
 
 struct vm_area_struct;
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 383627ad328f..ab2740832742 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -155,6 +155,11 @@ static inline int __vlan_hwaccel_rx(struct sk_buff *skb,
 {
         struct net_device_stats *stats;
 
+        if (skb_bond_should_drop(skb)) {
+                dev_kfree_skb_any(skb);
+                return NET_RX_DROP;
+        }
+
         skb->dev = grp->vlan_devices[vlan_tag & VLAN_VID_MASK];
         if (skb->dev == NULL) {
                 dev_kfree_skb_any(skb);
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 181c69cad4e3..851aa1bcfc1a 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -210,6 +210,7 @@ extern enum system_states {
 extern void dump_stack(void);
 
 #ifdef DEBUG
+/* If you are writing a driver, please use dev_dbg instead */
 #define pr_debug(fmt,arg...) \
         printk(KERN_DEBUG fmt,##arg)
 #else
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 990957e0929f..f0b135cd86da 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -336,6 +336,7 @@ static inline void init_page_count(struct page *page)
 }
 
 void put_page(struct page *page);
+void put_pages_list(struct list_head *pages);
 
 void split_page(struct page *page, unsigned int order);
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 75f02d8c6ed3..50a4719512ed 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -320,6 +320,9 @@ struct net_device
 #define NETIF_F_TSO_ECN         (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT)
 #define NETIF_F_TSO6            (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT)
 
+        /* List of features with software fallbacks. */
+#define NETIF_F_GSO_SOFTWARE    (NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6)
+
 #define NETIF_F_GEN_CSUM        (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM)
 #define NETIF_F_ALL_CSUM        (NETIF_F_IP_CSUM | NETIF_F_GEN_CSUM)
 
@@ -1012,6 +1015,30 @@ static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb)
                 unlikely(skb->ip_summed != CHECKSUM_HW));
 }
 
+/* On bonding slaves other than the currently active slave, suppress
+ * duplicates except for 802.3ad ETH_P_SLOW and alb non-mcast/bcast.
+ */
+static inline int skb_bond_should_drop(struct sk_buff *skb)
+{
+        struct net_device *dev = skb->dev;
+        struct net_device *master = dev->master;
+
+        if (master &&
+            (dev->priv_flags & IFF_SLAVE_INACTIVE)) {
+                if (master->priv_flags & IFF_MASTER_ALB) {
+                        if (skb->pkt_type != PACKET_BROADCAST &&
+                            skb->pkt_type != PACKET_MULTICAST)
+                                return 0;
+                }
+                if (master->priv_flags & IFF_MASTER_8023AD &&
+                    skb->protocol == __constant_htons(ETH_P_SLOW))
+                        return 0;
+
+                return 1;
+        }
+        return 0;
+}
+
 #endif /* __KERNEL__ */
 
 #endif  /* _LINUX_DEV_H */
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 19c96d498e20..755e9cddac47 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1040,6 +1040,21 @@ static inline int pskb_trim(struct sk_buff *skb, unsigned int len)
 }
 
 /**
+ *      pskb_trim_unique - remove end from a paged unique (not cloned) buffer
+ *      @skb: buffer to alter
+ *      @len: new length
+ *
+ *      This is identical to pskb_trim except that the caller knows that
+ *      the skb is not cloned so we should never get an error due to out-
+ *      of-memory.
+ */
+static inline void pskb_trim_unique(struct sk_buff *skb, unsigned int len)
+{
+        int err = pskb_trim(skb, len);
+        BUG_ON(err);
+}
+
+/**
  *      skb_orphan - orphan a buffer
  *      @skb: buffer to orphan
  *
@@ -1081,7 +1096,7 @@ static inline void __skb_queue_purge(struct sk_buff_head *list)
  *      the headroom they think they need without accounting for the
  *      built in space. The built in space is used for optimisations.
  *
- *      %NULL is returned in there is no free memory.
+ *      %NULL is returned if there is no free memory.
  */
 static inline struct sk_buff *__dev_alloc_skb(unsigned int length,
                                               gfp_t gfp_mask)
@@ -1101,7 +1116,7 @@ static inline struct sk_buff *__dev_alloc_skb(unsigned int length,
  *      the headroom they think they need without accounting for the
  *      built in space. The built in space is used for optimisations.
  *
- *      %NULL is returned in there is no free memory. Although this function
+ *      %NULL is returned if there is no free memory. Although this function
  *      allocates memory it can be called from an interrupt.
  */
 static inline struct sk_buff *dev_alloc_skb(unsigned int length)