diff options
Diffstat (limited to 'target/linux/generic/pending-5.15/736-02-net-ethernet-mediatek-mtk_ppe-prefer-newly-added-l2-.patch')
| -rw-r--r-- | target/linux/generic/pending-5.15/736-02-net-ethernet-mediatek-mtk_ppe-prefer-newly-added-l2-.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.15/736-02-net-ethernet-mediatek-mtk_ppe-prefer-newly-added-l2-.patch b/target/linux/generic/pending-5.15/736-02-net-ethernet-mediatek-mtk_ppe-prefer-newly-added-l2-.patch new file mode 100644 index 0000000000..6e17e4dc52 --- /dev/null +++ b/target/linux/generic/pending-5.15/736-02-net-ethernet-mediatek-mtk_ppe-prefer-newly-added-l2-.patch @@ -0,0 +1,37 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Mon, 20 Mar 2023 15:37:55 +0100 +Subject: [PATCH] net: ethernet: mediatek: mtk_ppe: prefer newly added l2 + flows over existing ones + +When a device is roaming between interfaces and a new flow entry is created, +we should assume that its output device is more up to date than whatever +entry existed already. + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/drivers/net/ethernet/mediatek/mtk_ppe.c ++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c +@@ -639,10 +639,20 @@ void mtk_foe_entry_clear(struct mtk_ppe + 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) |