[dpdk-stable] [PATCH v3] net/ice: remove unnecessary variable

[Ye Xiaolong]

On 03/04, Qi Zhang wrote:
>Remove unnecessary variable "meta" in ice_flow_create and
>ice_flow_validate, it should be defined when really be needed:
>its ice_parse_engine_create and ice_parse_engine_validate.
>
>A meta data be created by parser->parse_pattern_action should be
>freed inside parser->engine->create.
>
>During a validate operation, since parser->engine_>create will not
>be invoked, a meta is not necessary be created during parser, so
>NULL will parsed to engine->parse_pattern_action and all parser's
>parse_pattern_action need to be modified to handle meta = NULL
>properly.
>
>With above implementation, the patch also fixes a potentional memory

s/potentional/potential

>leak in ice_parse_engine_validate, since meta may not be freed.
>
>BTW, an engine without a create op should be regarded as a bug. So
>use RTE_ASSERT to replace runtime engine->create == NULL check in
>ice_parse_engine_create.
>
>Fixes: 4e27d3ed02bd ("net/ice: fix flow API framework")
>Cc: stable at dpdk.org
>
>Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
>---
>
Reviewed-by: Xiaolong Ye <xiaolong.ye at intel.com>

Applied to dpdk-next-net-intel with above fix, Thanks.