[dpdk-dev] [PATCH v6] abi: provide experimental alias of API for old apps

[Thomas Monjalon]

16/05/2020 13:53, Neil Horman:
> On Fri, May 15, 2020 at 04:01:53PM +0100, Ray Kinsella wrote:
> > From: Ferruh Yigit <ferruh.yigit at intel.com>
> > 
> > On v20.02 some APIs matured and symbols moved from EXPERIMENTAL to
> > DPDK_20.0.1 block.
> > 
> > This had the affect of breaking the applications that were using these
> > APIs on v19.11. Although there is no modification of the APIs and the
> > action is positive and matures the APIs, the affect can be negative to
> > applications.
> > 
> > When a maintainer is promoting an API to become part of the next major
> > ABI version by removing the experimental tag. The maintainer may
> > choose to offer an alias to the experimental tag, to prevent these
> > breakages in future.
> > 
> > The following changes are made to enabling aliasing:
> > 
> > Updated to the abi policy and abi versioning documents.
> > 
> > Created VERSION_SYMBOL_EXPERIMENTAL helper macro.
> > 
> > Updated the 'check-symbols.sh' buildtool, which was complaining that the
> > symbol is in EXPERIMENTAL tag in .map file but it is not in the
> > .experimental section (__rte_experimental tag is missing).
> > Updated tool in a way it won't complain if the symbol in the
> > EXPERIMENTAL tag duplicated in some other block in .map file (versioned)
> > 
> > Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
> > Signed-off-by: Ray Kinsella <mdr at ashroe.eu>
> > 
> Acked-by: Neil Horman <nhorman at tuxdriver.com>

Applied with few typos fixed, thanks.