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9a038e7fd1
Copy config and patches from kernel 5.10 to kernel 5.15 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
27 lines
904 B
Diff
27 lines
904 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Thu, 8 Jul 2021 07:08:29 +0200
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Subject: [PATCH] net: ethernet: mtk_eth_soc: avoid creating duplicate offload
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entries
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Sometimes multiple CLS_REPLACE calls are issued for the same connection.
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rhashtable_insert_fast does not check for these duplicates, so multiple
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hardware flow entries can be created.
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Fix this by checking for an existing entry early
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Fixes: 502e84e2382d ("net: ethernet: mtk_eth_soc: add flow offloading support")
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
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+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
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@@ -187,6 +187,9 @@ mtk_flow_offload_replace(struct mtk_eth
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int hash;
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int i;
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+ if (rhashtable_lookup(ð->flow_table, &f->cookie, mtk_flow_ht_params))
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+ return -EEXIST;
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+
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if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_META)) {
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struct flow_match_meta match;
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