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@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20250104083846.71612-1-znscnchen@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/net/bridge/br_arp_nd_proxy.c b/net/bridge/br_arp_nd_proxy.c
index c7869a2..115a230 100644 (file)
--- 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 29d6ec4..1054b8a 100644 (file)
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -2299,6 +2299,6 @@ 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