Gcc 8.0.1 reports incompatible cast between types i.e. from
`void (*)(void *)` to `(int (*)(void *)`.
Change the pipeline_stage prototype to retun int type
to fix the issue.
Fixes: a0ffcb257a ("examples/quota_watermark: correct code indentation")
Cc: stable@dpdk.org
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
491cf0eaa1