net: ethernet: mtk_eth_soc: avoid creating duplicate offload entries

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Sometimes multiple CLS_REPLACE calls are issued for the same connection.
rhashtable_insert_fast does not check for these duplicates, so multiple
hardware flow entries can be created.
Fix this by checking for an existing entry early

Fixes: 502e84e238 ("net: ethernet: mtk_eth_soc: add flow offloading support")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Felix Fietkau 2021-09-22 16:55:48 -07:00 • committed by David S. Miller

parent 31339440b2

commit e68daf61ed

1 changed files with 3 additions and 0 deletions

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drivers/net/ethernet/mediatek/mtk_ppe_offload.c

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