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-rw-r--r--include/net/ip.h1
-rw-r--r--net/ipv4/ip_sockglue.c11
-rw-r--r--net/mptcp/sockopt.c4
-rwxr-xr-xtools/testing/selftests/net/mptcp/mptcp_connect.sh2
4 files changed, 13 insertions, 5 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index 6fbc0dcf4b97..1fc4c8d69e33 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -810,5 +810,6 @@ int ip_sock_set_mtu_discover(struct sock *sk, int val);
void ip_sock_set_pktinfo(struct sock *sk);
void ip_sock_set_recverr(struct sock *sk);
void ip_sock_set_tos(struct sock *sk, int val);
+void __ip_sock_set_tos(struct sock *sk, int val);
#endif /* _IP_H */
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 0b74ac49d6a6..9c68b6b74d9f 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -585,9 +585,9 @@ out:
return err;
}
-void ip_sock_set_tos(struct sock *sk, int val)
+void __ip_sock_set_tos(struct sock *sk, int val)
{
- u8 old_tos = READ_ONCE(inet_sk(sk)->tos);
+ u8 old_tos = inet_sk(sk)->tos;
if (sk->sk_type == SOCK_STREAM) {
val &= ~INET_ECN_MASK;
@@ -599,6 +599,13 @@ void ip_sock_set_tos(struct sock *sk, int val)
sk_dst_reset(sk);
}
}
+
+void ip_sock_set_tos(struct sock *sk, int val)
+{
+ lock_sock(sk);
+ __ip_sock_set_tos(sk, val);
+ release_sock(sk);
+}
EXPORT_SYMBOL(ip_sock_set_tos);
void ip_sock_set_freebind(struct sock *sk)
diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c
index 18ce624bfde2..59bd5e114392 100644
--- a/net/mptcp/sockopt.c
+++ b/net/mptcp/sockopt.c
@@ -738,7 +738,7 @@ static int mptcp_setsockopt_v4_set_tos(struct mptcp_sock *msk, int optname,
mptcp_for_each_subflow(msk, subflow) {
struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
- ip_sock_set_tos(ssk, val);
+ __ip_sock_set_tos(ssk, val);
}
release_sock(sk);
@@ -1411,7 +1411,7 @@ static void sync_socket_options(struct mptcp_sock *msk, struct sock *ssk)
ssk->sk_bound_dev_if = sk->sk_bound_dev_if;
ssk->sk_incoming_cpu = sk->sk_incoming_cpu;
ssk->sk_ipv6only = sk->sk_ipv6only;
- ip_sock_set_tos(ssk, inet_sk(sk)->tos);
+ __ip_sock_set_tos(ssk, inet_sk(sk)->tos);
if (sk->sk_userlocks & tx_rx_locks) {
ssk->sk_userlocks |= sk->sk_userlocks & tx_rx_locks;
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.sh b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
index 61a2a1988ce6..b1fc8afd072d 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
@@ -716,7 +716,7 @@ run_test_transparent()
# the required infrastructure in MPTCP sockopt code. To support TOS, the
# following function has been exported (T). Not great but better than
# checking for a specific kernel version.
- if ! mptcp_lib_kallsyms_has "T ip_sock_set_tos$"; then
+ if ! mptcp_lib_kallsyms_has "T __ip_sock_set_tos$"; then
echo "INFO: ${msg} not supported by the kernel: SKIP"
mptcp_lib_result_skip "${TEST_GROUP}"
return