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4d84789cdd
Manually rebased: hack-5.15/780-usb-net-MeigLink_modem_support.patch Removed upstreamed: mpc85xx/patches-5.15/110-gpio-mpc8xxx-Fix-support-for-IRQ_TYPE_LEVEL_LOW-flow.patch All other patches automatically rebased. Signed-off-by: Liu Linhui <liulinhui36@gmail.com> Signed-off-by: Liu Linhui <liulinhui36@gmail.com>
27 lines
977 B
Diff
27 lines
977 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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@@ -233,6 +233,9 @@ mtk_flow_offload_replace(struct mtk_eth
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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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+ 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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