1 files changed, 27 insertions, 29 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index bcdd6606f468..124f90cd5a38 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -190,9 +190,6 @@ struct skb_shared_info {
         atomic_t        dataref;
         unsigned short  nr_frags;
         unsigned short  gso_size;
-#ifdef CONFIG_HAS_DMA
-        dma_addr_t      dma_head;
-#endif
         /* Warning: this field is not always filled in (UFO)! */
         unsigned short  gso_segs;
         unsigned short  gso_type;
@@ -201,9 +198,6 @@ struct skb_shared_info {
         struct sk_buff  *frag_list;
         struct skb_shared_hwtstamps hwtstamps;
         skb_frag_t      frags[MAX_SKB_FRAGS];
-#ifdef CONFIG_HAS_DMA
-        dma_addr_t      dma_maps[MAX_SKB_FRAGS];
-#endif
         /* Intermediate layers must ensure that destructor_arg
          * remains valid until skb destructor */
         void *          destructor_arg;
@@ -299,7 +293,7 @@ typedef unsigned char *sk_buff_data_t;
  *      @nfctinfo: Relationship of this skb to the connection
  *      @nfct_reasm: netfilter conntrack re-assembly pointer
  *      @nf_bridge: Saved data about a bridged frame - see br_netfilter.c
- *      @iif: ifindex of device we arrived on
+ *      @skb_iif: ifindex of device we arrived on
  *      @queue_mapping: Queue mapping for multiqueue devices
  *      @tc_index: Traffic control index
  *      @tc_verd: traffic control verdict
@@ -315,22 +309,23 @@ struct sk_buff {
         struct sk_buff          *next;
         struct sk_buff          *prev;
 
-        struct sock             *sk;
         ktime_t                 tstamp;
+
+        struct sock             *sk;
         struct net_device       *dev;
 
-        unsigned long           _skb_dst;
-#ifdef CONFIG_XFRM
-        struct  sec_path        *sp;
-#endif
         /*
          * This is the control buffer. It is free to use for every
          * layer. Please put your private variables there. If you
          * want to keep them across layers you have to do a skb_clone()
          * first. This is owned by whoever has the skb queued ATM.
          */
-        char                    cb[48];
+        char                    cb[48] __aligned(8);
 
+        unsigned long           _skb_dst;
+#ifdef CONFIG_XFRM
+        struct  sec_path        *sp;
+#endif
         unsigned int            len,
                                 data_len;
         __u16                   mac_len,
@@ -354,8 +349,8 @@ struct sk_buff {
                                 ipvs_property:1,
                                 peeked:1,
                                 nf_trace:1;
-        __be16                  protocol:16;
         kmemcheck_bitfield_end(flags1);
+        __be16                  protocol;
 
         void                    (*destructor)(struct sk_buff *skb);
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
@@ -366,7 +361,7 @@ struct sk_buff {
         struct nf_bridge_info   *nf_bridge;
 #endif
 
-        int                     iif;
+        int                     skb_iif;
 #ifdef CONFIG_NET_SCHED
         __u16                   tc_index;       /* traffic control index */
 #ifdef CONFIG_NET_CLS_ACT
@@ -389,8 +384,10 @@ struct sk_buff {
 #ifdef CONFIG_NETWORK_SECMARK
         __u32                   secmark;
 #endif
-
-        __u32                   mark;
+        union {
+                __u32           mark;
+                __u32           dropcount;
+        };
 
         __u16                   vlan_tci;
 
@@ -414,14 +411,6 @@ struct sk_buff {
 
 #include <asm/system.h>
 
-#ifdef CONFIG_HAS_DMA
-#include <linux/dma-mapping.h>
-extern int skb_dma_map(struct device *dev, struct sk_buff *skb,
-                       enum dma_data_direction dir);
-extern void skb_dma_unmap(struct device *dev, struct sk_buff *skb,
-                          enum dma_data_direction dir);
-#endif
-
 static inline struct dst_entry *skb_dst(const struct sk_buff *skb)
 {
         return (struct dst_entry *)skb->_skb_dst;
@@ -489,8 +478,7 @@ extern int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
                         int len,int odd, struct sk_buff *skb),
                         void *from, int length);
 
-struct skb_seq_state
-{
+struct skb_seq_state {
         __u32           lower_offset;
         __u32           upper_offset;
         __u32           frag_idx;
@@ -745,7 +733,7 @@ static inline struct sk_buff *skb_unshare(struct sk_buff *skb,
 }
 
 /**
- *      skb_peek
+ *      skb_peek - peek at the head of an &sk_buff_head
  *      @list_: list to peek at
  *
  *      Peek an &sk_buff. Unlike most other operations you _MUST_
@@ -766,7 +754,7 @@ static inline struct sk_buff *skb_peek(struct sk_buff_head *list_)
 }
 
 /**
- *      skb_peek_tail
+ *      skb_peek_tail - peek at the tail of an &sk_buff_head
  *      @list_: list to peek at
  *
  *      Peek an &sk_buff. Unlike most other operations you _MUST_
@@ -1489,6 +1477,16 @@ static inline struct sk_buff *netdev_alloc_skb(struct net_device *dev,
         return __netdev_alloc_skb(dev, length, GFP_ATOMIC);
 }
 
+static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,
+                unsigned int length)
+{
+        struct sk_buff *skb = netdev_alloc_skb(dev, length + NET_IP_ALIGN);
+
+        if (NET_IP_ALIGN && skb)
+                skb_reserve(skb, NET_IP_ALIGN);
+        return skb;
+}
+
 extern struct page *__netdev_alloc_page(struct net_device *dev, gfp_t gfp_mask);
 
 /**