summaryrefslogtreecommitdiff
path: root/include/net
diff options
context:
space:
mode:
authorKuniyuki Iwashima <kuniyu@amazon.com>2022-09-07 18:10:19 -0700
committerJakub Kicinski <kuba@kernel.org>2022-09-20 10:21:49 -0700
commit429e42c1c54e0d9bfe880195f7d4a8fd5a727194 (patch)
treef0e05ad8dcad224204fdda0e66f25626f275cc8b /include/net
parente9bd0cca09d13ac2f08d25e195203e42d4ad1ce8 (diff)
tcp: Set NULL to sk->sk_prot->h.hashinfo.
We will soon introduce an optional per-netns ehash. This means we cannot use the global sk->sk_prot->h.hashinfo to fetch a TCP hashinfo. Instead, set NULL to sk->sk_prot->h.hashinfo for TCP and get a proper hashinfo from net->ipv4.tcp_death_row.hashinfo. Note that we need not use sk->sk_prot->h.hashinfo if DCCP is disabled. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/inet_hashtables.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 44a419b9e3d5..520dd894b73d 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -170,6 +170,16 @@ struct inet_hashinfo {
struct inet_listen_hashbucket *lhash2;
};
+static inline struct inet_hashinfo *tcp_or_dccp_get_hashinfo(const struct sock *sk)
+{
+#if IS_ENABLED(CONFIG_IP_DCCP)
+ return sk->sk_prot->h.hashinfo ? :
+ sock_net(sk)->ipv4.tcp_death_row.hashinfo;
+#else
+ return sock_net(sk)->ipv4.tcp_death_row.hashinfo;
+#endif
+}
+
static inline struct inet_listen_hashbucket *
inet_lhash2_bucket(struct inet_hashinfo *h, u32 hash)
{