netfilter: push reasm skb through instead of original frag skbs

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / core / skbuff.c

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index af9185d0be6a9e3b3b81c10d061b82992c40fc1d..d9e8736bcdc1a9fdb48770bbc1499b936218f64f 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -195,7 +195,7 @@ struct sk_buff *__alloc_skb_head(gfp_t gfp_mask, int node)
         * the tail pointer in struct sk_buff!
         */
        memset(skb, 0, offsetof(struct sk_buff, tail));
-       skb->data = NULL;
+       skb->head = NULL;
        skb->truesize = sizeof(struct sk_buff);
        atomic_set(&skb->users, 1);
 
@@ -483,15 +483,8 @@ EXPORT_SYMBOL(skb_add_rx_frag);
 
 static void skb_drop_list(struct sk_buff **listp)
 {
-       struct sk_buff *list = *listp;
-
+       kfree_skb_list(*listp);
        *listp = NULL;
-
-       do {
-               struct sk_buff *this = list;
-               list = list->next;
-               kfree_skb(this);
-       } while (list);
 }
 
 static inline void skb_drop_fraglist(struct sk_buff *skb)
@@ -592,9 +585,6 @@ static void skb_release_head_state(struct sk_buff *skb)
 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
        nf_conntrack_put(skb->nfct);
 #endif
-#ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
-       nf_conntrack_put_reasm(skb->nfct_reasm);
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
        nf_bridge_put(skb->nf_bridge);
 #endif
@@ -611,7 +601,7 @@ static void skb_release_head_state(struct sk_buff *skb)
 static void skb_release_all(struct sk_buff *skb)
 {
        skb_release_head_state(skb);
-       if (likely(skb->data))
+       if (likely(skb->head))
                skb_release_data(skb);
 }
 
@@ -651,6 +641,17 @@ void kfree_skb(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(kfree_skb);
 
+void kfree_skb_list(struct sk_buff *segs)
+{
+       while (segs) {
+               struct sk_buff *next = segs->next;
+
+               kfree_skb(segs);
+               segs = next;
+       }
+}
+EXPORT_SYMBOL(kfree_skb_list);
+
 /**
  *     skb_tx_error - report an sk_buff xmit error
  *     @skb: buffer that triggered an error