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Diffstat (limited to 'net')
-rw-r--r--net/core/skbuff.c20
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
*