netdev - [PATCH net-next v2] bridge: cfm: fix enum typo in br_cc_ccm_tx

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Date: Thu, 21 Dec 2023 00:34:51 +0800
From: Lin Ma <linma@....edu.cn>
To: roopa@...dia.com,
	razor@...ckwall.org,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	horatiu.vultur@...rochip.com,
	henrik.bjoernlund@...rochip.com,
	bridge@...ts.linux.dev,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	horms@...nel.org
Cc: Lin Ma <linma@....edu.cn>
Subject: [PATCH net-next v2] bridge: cfm: fix enum typo in br_cc_ccm_tx_parse

It appears that there is a typo in the code where the nlattr array is
being parsed with policy br_cfm_cc_ccm_tx_policy, but the instance is
being accessed via IFLA_BRIDGE_CFM_CC_RDI_INSTANCE, which is associated
with the policy br_cfm_cc_rdi_policy.

This problem was introduced by commit 2be665c3940d ("bridge: cfm: Netlink
SET configuration Interface.").

Though it seems like a harmless typo since these two enum owns the exact
same value (1 here), it is quite misleading hence fix it by using the
correct enum IFLA_BRIDGE_CFM_CC_CCM_TX_INSTANCE here.

Signed-off-by: Lin Ma <linma@....edu.cn>
Reviewed-by: Simon Horman <horms@...nel.org>
---
V1 -> V2: remove Fixes tag as this patch resolves nothing but a typo.

 net/bridge/br_cfm_netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bridge/br_cfm_netlink.c b/net/bridge/br_cfm_netlink.c
index 5c4c369f8536..2faab44652e7 100644
--- a/net/bridge/br_cfm_netlink.c
+++ b/net/bridge/br_cfm_netlink.c
@@ -362,7 +362,7 @@ static int br_cc_ccm_tx_parse(struct net_bridge *br, struct nlattr *attr,
 
 	memset(&tx_info, 0, sizeof(tx_info));
 
-	instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_RDI_INSTANCE]);
+	instance = nla_get_u32(tb[IFLA_BRIDGE_CFM_CC_CCM_TX_INSTANCE]);
 	nla_memcpy(&tx_info.dmac.addr,
 		   tb[IFLA_BRIDGE_CFM_CC_CCM_TX_DMAC],
 		   sizeof(tx_info.dmac.addr));
-- 
2.17.1