[DPDK/ethdev Bug 1416] net/af_packet: tx_burst() can modify packets

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=1416

Konstantin Ananyev (konstantin.v.ananyev at yandex.ru) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Konstantin Ananyev (konstantin.v.ananyev at yandex.ru) ---
As Stephen Hemminger <stephen at networkplumber.org> pointed out:

vlan_insert will fail if the mbuf is has refcnt > 1.

static inline int rte_vlan_insert(struct rte_mbuf **m)
{
        struct rte_ether_hdr *oh, *nh;
        struct rte_vlan_hdr *vh;

        /* Can't insert header if mbuf is shared */
        if (!RTE_MBUF_DIRECT(*m) || rte_mbuf_refcnt_read(*m) > 1)
                return -EINVAL;

So closing as not a bug.

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