1 files changed, 20 insertions, 0 deletions

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 4abdf71a23f8..d9addea10309 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -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
  *