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authorEric Dumazet <edumazet@google.com>2024-03-29 17:49:31 +0300
committerJakub Kicinski <kuba@kernel.org>2024-04-02 07:27:08 +0300
commit58169ec9c40309541509181e068177eab72e6caa (patch)
tree53a9472288e6d7fcfc8e1d6b3cdfa296297166b1 /net
parent513bebc4de499f8a6e1671eb921aca8f723e5cbc (diff)
downloadlinux-58169ec9c40309541509181e068177eab72e6caa.tar.xz
inet: preserve const qualifier in inet_csk()
We can change inet_csk() to propagate its argument const qualifier, thanks to container_of_const(). We have to fix few places that had mistakes, like tcp_bound_rto(). Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20240329144931.295800-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_input.c2
-rw-r--r--net/ipv4/tcp_timer.c4
-rw-r--r--net/mptcp/protocol.h2
3 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5d874817a78d..1b6cd3840012 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -6999,7 +6999,7 @@ EXPORT_SYMBOL(inet_reqsk_alloc);
/*
* Return true if a syncookie should be sent
*/
-static bool tcp_syn_flood_action(const struct sock *sk, const char *proto)
+static bool tcp_syn_flood_action(struct sock *sk, const char *proto)
{
struct request_sock_queue *queue = &inet_csk(sk)->icsk_accept_queue;
const char *msg = "Dropping request";
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index d1ad20ce1c8c..976db57b95d4 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -25,7 +25,7 @@
static u32 tcp_clamp_rto_to_user_timeout(const struct sock *sk)
{
- struct inet_connection_sock *icsk = inet_csk(sk);
+ const struct inet_connection_sock *icsk = inet_csk(sk);
const struct tcp_sock *tp = tcp_sk(sk);
u32 elapsed, user_timeout;
s32 remaining;
@@ -47,7 +47,7 @@ static u32 tcp_clamp_rto_to_user_timeout(const struct sock *sk)
u32 tcp_clamp_probe0_to_user_timeout(const struct sock *sk, u32 when)
{
- struct inet_connection_sock *icsk = inet_csk(sk);
+ const struct inet_connection_sock *icsk = inet_csk(sk);
u32 remaining, user_timeout;
s32 elapsed;
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index a10ebf3ee10a..46f4655b7123 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -558,7 +558,7 @@ struct mptcp_subflow_context {
static inline struct mptcp_subflow_context *
mptcp_subflow_ctx(const struct sock *sk)
{
- struct inet_connection_sock *icsk = inet_csk(sk);
+ const struct inet_connection_sock *icsk = inet_csk(sk);
/* Use RCU on icsk_ulp_data only for sock diag code */
return (__force struct mptcp_subflow_context *)icsk->icsk_ulp_data;