linux-kernel - [PATCH v2 net-next] ipv4: fib: Remove unnecessary encap

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Message-ID: <20250625022059.3958215-1-yuehaibing@huawei.com>
Date: Wed, 25 Jun 2025 10:20:59 +0800
From: Yue Haibing <yuehaibing@...wei.com>
To: <davem@...emloft.net>, <dsahern@...nel.org>, <edumazet@...gle.com>,
	<kuba@...nel.org>, <pabeni@...hat.com>, <horms@...nel.org>,
	<kuniyu@...gle.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<yuehaibing@...wei.com>
Subject: [PATCH v2 net-next] ipv4: fib: Remove unnecessary encap_type check

lwtunnel_build_state() has check validity of encap_type,
so no need to do this before call it.

Signed-off-by: Yue Haibing <yuehaibing@...wei.com>
---
v2: Restore encap_type check in fib_encap_match()
---
 net/ipv4/fib_semantics.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index f7c9c6a9f53e..a2f04992f579 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -625,11 +625,6 @@ int fib_nh_common_init(struct net *net, struct fib_nh_common *nhc,
 	if (encap) {
 		struct lwtunnel_state *lwtstate;
 
-		if (encap_type == LWTUNNEL_ENCAP_NONE) {
-			NL_SET_ERR_MSG(extack, "LWT encap type not specified");
-			err = -EINVAL;
-			goto lwt_failure;
-		}
 		err = lwtunnel_build_state(net, encap_type, encap,
 					   nhc->nhc_family, cfg, &lwtstate,
 					   extack);
-- 
2.34.1