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net: sfc: Correct key_len for efx_tc_ct_zone_ht_params

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[ Upstream commit a8620de72e ]

In efx_tc_ct_zone_ht_params, the key_len was previously set to
offsetof(struct efx_tc_ct_zone, linkage). This calculation is incorrect
because it includes any padding between the zone field and the linkage
field due to structure alignment, which can vary between systems.

This patch updates key_len to use sizeof_field(struct efx_tc_ct_zone, zone)
, ensuring that the hash table correctly uses the zone as the key. This fix
prevents potential hash lookup errors and improves connection tracking
reliability.

Fixes: c3bb5c6acd ("sfc: functions to register for conntrack zone offload")
Signed-off-by: Liang Jie <liangjie@lixiang.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20241230093709.3226854-1-buaajxlj@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Liang Jie
2024-12-30 17:37:09 +08:00
committed by Greg Kroah-Hartman
parent 127c280067
commit 05670a8935
1 changed files with 1 additions and 1 deletions
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drivers/net/ethernet/sfc/tc_conntrack.c
+1 -1
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@@ -16,7 +16,7 @@ static int efx_tc_flow_block(enum tc_setup_type type, void *type_data,
void *cb_priv);
static const struct rhashtable_params efx_tc_ct_zone_ht_params = {
.key_len = offsetof(struct efx_tc_ct_zone, linkage),
.key_len = sizeof_field(struct efx_tc_ct_zone, zone),
.key_offset = 0,
.head_offset = offsetof(struct efx_tc_ct_zone, linkage),
};