netdev - [PATCH net-next 4/8] ipv6: constify inet6_mc

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Date:   Wed, 15 Mar 2023 15:42:41 +0000
From:   Eric Dumazet <edumazet@...gle.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org,
        eric.dumazet@...il.com, Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net-next 4/8] ipv6: constify inet6_mc_check()

inet6_mc_check() is essentially a read-only function.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 include/net/addrconf.h | 2 +-
 net/ipv6/mcast.c       | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index c04f359655b86feed2b4b42cc69b90c63088238a..82da55101b5a30b2a5512d964429d2c5f73d03fd 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -223,7 +223,7 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
 		      const struct in6_addr *addr);
 void __ipv6_sock_mc_close(struct sock *sk);
 void ipv6_sock_mc_close(struct sock *sk);
-bool inet6_mc_check(struct sock *sk, const struct in6_addr *mc_addr,
+bool inet6_mc_check(const struct sock *sk, const struct in6_addr *mc_addr,
 		    const struct in6_addr *src_addr);
 
 int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr);
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 1c02160cf7a4c54f0d8687b8368e5f6151ab0bce..714cdc9e2b8edfb925a061a722c38b37b1c6088e 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -627,12 +627,12 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
 	return 0;
 }
 
-bool inet6_mc_check(struct sock *sk, const struct in6_addr *mc_addr,
+bool inet6_mc_check(const struct sock *sk, const struct in6_addr *mc_addr,
 		    const struct in6_addr *src_addr)
 {
-	struct ipv6_pinfo *np = inet6_sk(sk);
-	struct ipv6_mc_socklist *mc;
-	struct ip6_sf_socklist *psl;
+	const struct ipv6_pinfo *np = inet6_sk(sk);
+	const struct ipv6_mc_socklist *mc;
+	const struct ip6_sf_socklist *psl;
 	bool rv = true;
 
 	rcu_read_lock();
-- 
2.40.0.rc1.284.g88254d51c5-goog