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Diffstat (limited to 'net/core/skbuff.c')
-rw-r--r--net/core/skbuff.c34
1 files changed, 31 insertions, 3 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 3f0636cd76cd..3ab989b0de42 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -519,7 +519,7 @@ static void skb_release_data(struct sk_buff *skb)
uarg = skb_shinfo(skb)->destructor_arg;
if (uarg->callback)
- uarg->callback(uarg);
+ uarg->callback(uarg, true);
}
if (skb_has_frag_list(skb))
@@ -635,6 +635,26 @@ void kfree_skb(struct sk_buff *skb)
EXPORT_SYMBOL(kfree_skb);
/**
+ * skb_tx_error - report an sk_buff xmit error
+ * @skb: buffer that triggered an error
+ *
+ * Report xmit error if a device callback is tracking this skb.
+ * skb must be freed afterwards.
+ */
+void skb_tx_error(struct sk_buff *skb)
+{
+ if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
+ struct ubuf_info *uarg;
+
+ uarg = skb_shinfo(skb)->destructor_arg;
+ if (uarg->callback)
+ uarg->callback(uarg, false);
+ skb_shinfo(skb)->tx_flags &= ~SKBTX_DEV_ZEROCOPY;
+ }
+}
+EXPORT_SYMBOL(skb_tx_error);
+
+/**
* consume_skb - free an skbuff
* @skb: buffer to free
*
@@ -662,11 +682,14 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
new->transport_header = old->transport_header;
new->network_header = old->network_header;
new->mac_header = old->mac_header;
+ new->inner_transport_header = old->inner_transport_header;
+ new->inner_network_header = old->inner_transport_header;
skb_dst_copy(new, old);
new->rxhash = old->rxhash;
new->ooo_okay = old->ooo_okay;
new->l4_rxhash = old->l4_rxhash;
new->no_fcs = old->no_fcs;
+ new->encapsulation = old->encapsulation;
#ifdef CONFIG_XFRM
new->sp = secpath_get(old->sp);
#endif
@@ -797,7 +820,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask)
for (i = 0; i < num_frags; i++)
skb_frag_unref(skb, i);
- uarg->callback(uarg);
+ uarg->callback(uarg, false);
/* skb frags point to kernel buffers */
for (i = num_frags - 1; i >= 0; i--) {
@@ -872,6 +895,8 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
new->network_header += offset;
if (skb_mac_header_was_set(new))
new->mac_header += offset;
+ new->inner_transport_header += offset;
+ new->inner_network_header += offset;
#endif
skb_shinfo(new)->gso_size = skb_shinfo(old)->gso_size;
skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
@@ -1069,6 +1094,8 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
skb->network_header += off;
if (skb_mac_header_was_set(skb))
skb->mac_header += off;
+ skb->inner_transport_header += off;
+ skb->inner_network_header += off;
/* Only adjust this if it actually is csum_start rather than csum */
if (skb->ip_summed == CHECKSUM_PARTIAL)
skb->csum_start += nhead;
@@ -1168,6 +1195,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
n->network_header += off;
if (skb_mac_header_was_set(skb))
n->mac_header += off;
+ n->inner_transport_header += off;
+ n->inner_network_header += off;
#endif
return n;
@@ -2999,7 +3028,6 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
memcpy(skb_mac_header(nskb), skb_mac_header(p),
p->data - skb_mac_header(p));
- *NAPI_GRO_CB(nskb) = *NAPI_GRO_CB(p);
skb_shinfo(nskb)->frag_list = p;
skb_shinfo(nskb)->gso_size = pinfo->gso_size;
pinfo->gso_size = 0;