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Message-ID: <20230316153202.1354692-3-edumazet@google.com>
Date:   Thu, 16 Mar 2023 15:31:56 +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:     netdev@...r.kernel.org, David Ahern <dsahern@...nel.org>,
        Simon Horman <simon.horman@...igine.com>,
        eric.dumazet@...il.com, Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH v2 net-next 2/8] ipv4: constify ip_mc_sf_allow() socket argument

This clarifies ip_mc_sf_allow() intent.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Reviewed-by: Simon Horman <simon.horman@...igine.com>
---
 include/linux/igmp.h | 2 +-
 net/ipv4/igmp.c      | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index b19d3284551f083d0eec3353cd8ec1f486ae4b42..ebf4349a53af7888104e8c5fe0d7af0e5604ae69 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -122,7 +122,7 @@ extern int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
 			sockptr_t optval, sockptr_t optlen);
 extern int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
 			sockptr_t optval, size_t offset);
-extern int ip_mc_sf_allow(struct sock *sk, __be32 local, __be32 rmt,
+extern int ip_mc_sf_allow(const struct sock *sk, __be32 local, __be32 rmt,
 			  int dif, int sdif);
 extern void ip_mc_init_dev(struct in_device *);
 extern void ip_mc_destroy_dev(struct in_device *);
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index c920aa9a62a988bf91a5420e59eb5878c271bf9a..48ff5f13e7979dc00da60b466ee2e74ddce0891b 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2638,10 +2638,10 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
 /*
  * check if a multicast source filter allows delivery for a given <src,dst,intf>
  */
-int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr,
+int ip_mc_sf_allow(const struct sock *sk, __be32 loc_addr, __be32 rmt_addr,
 		   int dif, int sdif)
 {
-	struct inet_sock *inet = inet_sk(sk);
+	const struct inet_sock *inet = inet_sk(sk);
 	struct ip_mc_socklist *pmc;
 	struct ip_sf_socklist *psl;
 	int i;
-- 
2.40.0.rc2.332.ga46443480c-goog

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