[PATCH dpdk v2] net: fix L2 ptype assignment in VLAN loop

[Thomas Monjalon]

22/04/2026 12:38, Robin Jarry:
> Since commit 1f250674085a ("net: fix packet type for stacked VLAN"),
> rte_net_get_ptype() uses |= to set the L2 ptype inside the VLAN
> parsing loop. Since pkt_type is already initialized with
> RTE_PTYPE_L2_ETHER (0x1), or-ing it with RTE_PTYPE_L2_ETHER_VLAN
> (0x6) results in RTE_PTYPE_L2_ETHER_QINQ (0x7). This causes single
> VLAN frames to be misidentified as QinQ.

Thanks for finding this major regression.

Minor nit about the title (for whoever will merge it):
we don't really care the problem is in a loop.
I think this title is easier to read:
	net: fix VLAN packet type