diff options
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_ppe.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.c b/drivers/net/ethernet/mediatek/mtk_ppe.c index f9c9f2ea4206..dd9581334b05 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe.c @@ -635,10 +635,20 @@ void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry) static int mtk_foe_entry_commit_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry) { + struct mtk_flow_entry *prev; + entry->type = MTK_FLOW_TYPE_L2; - return rhashtable_insert_fast(&ppe->l2_flows, &entry->l2_node, - mtk_flow_l2_ht_params); + prev = rhashtable_lookup_get_insert_fast(&ppe->l2_flows, &entry->l2_node, + mtk_flow_l2_ht_params); + if (likely(!prev)) + return 0; + + if (IS_ERR(prev)) + return PTR_ERR(prev); + + return rhashtable_replace_fast(&ppe->l2_flows, &prev->l2_node, + &entry->l2_node, mtk_flow_l2_ht_params); } int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry) |