Re: [dpdk-dev] [PATCH v10 1/3] lib/lpm: integrate RCU QSBR

[Ruifeng Wang <Ruifeng.Wang@arm.com>]

The ci/checkpatch warning is a false positive.

> -----Original Message-----
> From: Ruifeng Wang <ruifeng.wang@arm.com>
> Sent: Friday, July 10, 2020 10:22 AM
> To: Bruce Richardson <bruce.richardson@intel.com>; Vladimir Medvedkin
> <vladimir.medvedkin@intel.com>; John McNamara
> <john.mcnamara@intel.com>; Marko Kovacevic
> <marko.kovacevic@intel.com>; Ray Kinsella <mdr@ashroe.eu>; Neil Horman
> <nhorman@tuxdriver.com>
> Cc: dev@dpdk.org; konstantin.ananyev@intel.com; Honnappa Nagarahalli
> <Honnappa.Nagarahalli@arm.com>; nd <nd@arm.com>; Ruifeng Wang
> <Ruifeng.Wang@arm.com>
> Subject: [PATCH v10 1/3] lib/lpm: integrate RCU QSBR
> 
> Currently, the tbl8 group is freed even though the readers might be using the
> tbl8 group entries. The freed tbl8 group can be reallocated quickly. This
> results in incorrect lookup results.
> 
> RCU QSBR process is integrated for safe tbl8 group reclaim.
> Refer to RCU documentation to understand various aspects of integrating
> RCU library into other libraries.
> 
> To avoid ABI breakage, a struct __rte_lpm is created for lpm library internal
> use. This struct wraps rte_lpm that has been exposed and also includes
> members that don't need to be exposed such as RCU related config.
> 
> Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> Acked-by: Ray Kinsella <mdr@ashroe.eu>
> Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
> ---
>  doc/guides/prog_guide/lpm_lib.rst  |  32 ++++++
>  lib/librte_lpm/Makefile            |   2 +-
>  lib/librte_lpm/meson.build         |   1 +
>  lib/librte_lpm/rte_lpm.c           | 165 +++++++++++++++++++++++++----
>  lib/librte_lpm/rte_lpm.h           |  53 +++++++++
>  lib/librte_lpm/rte_lpm_version.map |   6 ++
>  6 files changed, 237 insertions(+), 22 deletions(-)
>