diff options
| -rw-r--r-- | net/dsa/tag_ocelot_8021q.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/dsa/tag_ocelot_8021q.c b/net/dsa/tag_ocelot_8021q.c index 68982b2789a5..bd6f1d0e5372 100644 --- a/net/dsa/tag_ocelot_8021q.c +++ b/net/dsa/tag_ocelot_8021q.c @@ -32,6 +32,13 @@ static struct sk_buff *ocelot_defer_xmit(struct dsa_port *dp, if (!xmit_work_fn || !xmit_worker) return NULL; + /* PTP over IP packets need UDP checksumming. We may have inherited + * NETIF_F_HW_CSUM from the DSA master, but these packets are not sent + * through the DSA master, so calculate the checksum here. + */ + if (skb->ip_summed == CHECKSUM_PARTIAL && skb_checksum_help(skb)) + return NULL; + xmit_work = kzalloc(sizeof(*xmit_work), GFP_ATOMIC); if (!xmit_work) return NULL; |