[PATCH v2 4/4] ethdev: fix promoted flow metadata symbols

[David Marchand]

On Wed, 24 Jun 2026 at 15:15, Dariusz Sosnowski <dsosnowski at nvidia.com> wrote:
>
> Offending commit stabilized the following symbols
> related to flow metadata:
>
> - 1 function symbol:
>     - rte_flow_dynf_metadata_register
> - 2 variable symbols:
>     - rte_flow_dynf_metadata_offs
>     - rte_flow_dynf_metadata_mask
>
> Any application using experimental flow metadata symbols,
> which was linked dynamically against 25.11 version of ethdev
> library and using current version of ethdev library
> would fail to start on symbol lookup error:
>
> /tmp/dpdk-25.11/usr/local/bin/dpdk-testpmd:
>   symbol lookup error: /tmp/dpdk-25.11/usr/local/bin/dpdk-testpmd:
>     undefined symbol: rte_flow_dynf_metadata_offs, version EXPERIMENTAL
>
> This patch addresses that issue by restoring EXPERIMENTAL version
> on the global variables to keep ABI compatibility [1].
> Related inline helpers and variable declarations are kept as stable
> (i.e., no __rte_experimental marker).
> EXPERIMENTAL version will be removed from these global variables
> in 26.11 release cycle on next ABI version bump.
>
> Standard function symbol versioning is also applied on
> rte_flow_dynf_metadata_register() function.
>
> [1]: https://inbox.dpdk.org/dev/m7s3jl2566kibbapr2mfa2ic2opuc6b4ok2g67j3il5dgduzih@cz5wcdstb75n/
>
> Bugzilla ID: 1957
> Fixes: 4ee2f5c1cedf ("ethdev: promote flow metadata API to stable")
>
> Reported-by: Yu Jiang <yux.jiang at intel.com>
> Signed-off-by: Dariusz Sosnowski <dsosnowski at nvidia.com>

Acked-by: David Marchand <david.marchand at redhat.com>

Once this series is merged, could you send a patch against 26.11
dropping this compat and marking the variables as stable?
I'll mark it as deferred in patchwork, this is just to have a reminder
to clean this up.


-- 
David Marchand