netdev - [PATCH] bridge: Make br_is_nd_neigh_msg() accept pointer to "const struct sk

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Message-Id: <20250103070900.70014-1-znscnchen@gmail.com>
Date: Fri,  3 Jan 2025 15:09:00 +0800
From: Ted Chen <znscnchen@...il.com>
To: roopa@...dia.com,
	razor@...ckwall.org
Cc: bridge@...ts.linux.dev,
	netdev@...r.kernel.org,
	Ted Chen <znscnchen@...il.com>
Subject: [PATCH] bridge: Make br_is_nd_neigh_msg() accept pointer to "const struct sk_buff"

The skb_buff struct in br_is_nd_neigh_msg() is never modified. Mark it as const.

Signed-off-by: Ted Chen <znscnchen@...il.com>
---
 net/bridge/br_arp_nd_proxy.c | 2 +-
 net/bridge/br_private.h      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bridge/br_arp_nd_proxy.c b/net/bridge/br_arp_nd_proxy.c
index c7869a286df4..115a23054a58 100644
--- a/net/bridge/br_arp_nd_proxy.c
+++ b/net/bridge/br_arp_nd_proxy.c
@@ -229,7 +229,7 @@ void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br,
 #endif
 
 #if IS_ENABLED(CONFIG_IPV6)
-struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *msg)
+struct nd_msg *br_is_nd_neigh_msg(const struct sk_buff *skb, struct nd_msg *msg)
 {
 	struct nd_msg *m;
 
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 9853cfbb9d14..3fe432babfdf 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -2290,6 +2290,6 @@ void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br,
 			      u16 vid, struct net_bridge_port *p);
 void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br,
 		       u16 vid, struct net_bridge_port *p, struct nd_msg *msg);
-struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m);
+struct nd_msg *br_is_nd_neigh_msg(const struct sk_buff *skb, struct nd_msg *m);
 bool br_is_neigh_suppress_enabled(const struct net_bridge_port *p, u16 vid);
 #endif
-- 
2.39.2