net/ice: fix flow director rule duplication check

When FDIR filter detects duplicated rule and then returns EEXIST, ice
flow will capture this error and return immediately.

Fixes: 4e27d3ed02bd ("net/ice: fix flow API framework")
Signed-off-by: Yahui Cao <yahui.cao@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/ice/ice_generic_flow.c b/drivers/net/ice/ice_generic_flow.c
index 5594f8555b5ca39203d0b0cdcdf6a63a4fb97c59..1d8c83418095463ed4a24091562929f61f06d8bc 100644 (file)
--- a/drivers/net/ice/ice_generic_flow.c
+++ b/drivers/net/ice/ice_generic_flow.c
@@ -1698,6 +1698,8 @@ ice_parse_engine_create(struct ice_adapter *ad,
        void *temp;
 
        TAILQ_FOREACH_SAFE(parser_node, parser_list, node, temp) {
+               int ret;
+
                if (parser_node->parser->parse_pattern_action(ad,
                                parser_node->parser->array,
                                parser_node->parser->array_len,
@@ -1712,8 +1714,11 @@ ice_parse_engine_create(struct ice_adapter *ad,
                        continue;
                }
 
-               if (!(engine->create(ad, flow, *meta, error)))
+               ret = engine->create(ad, flow, *meta, error);
+               if (ret == 0)
                        return engine;
+               else if (ret == -EEXIST)
+                       return NULL;
        }
        return NULL;
 }