[dpdk-dev] [PATCH v4 1/6] vfio: allow DMA map of memory for the default vfio fd

[Thomas Monjalon]

10/03/2019 09:27, Shahaf Shuler:
> Enable users the option to call rte_vfio_dma_map with request to map
> to the default vfio fd.
> 
> Signed-off-by: Shahaf Shuler <shahafs at mellanox.com>
> Acked-by: Anatoly Burakov <anatoly.burakov at intel.com>
> ---
> --- a/doc/guides/rel_notes/release_19_05.rst
> +++ b/doc/guides/rel_notes/release_19_05.rst
> @@ -136,6 +136,9 @@ ABI Changes
> +* vfio: Functions ``rte_vfio_container_dma_map`` and
> +  ``rte_vfio_container_dma_unmap`` have been extended with an option to
> +  request mapping or un-mapping to the default vfio container fd.

Isn't it an API change rather than ABI?
It is adding -1 as a special value, I think it is not breaking
previous interface, and does not require a notification in the release notes.