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-rw-r--r--net/ipv4/tcp_cong.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index a2ed23c..93c4dc3 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -114,16 +114,19 @@ void tcp_unregister_congestion_control(struct tcp_congestion_ops *ca)
}
EXPORT_SYMBOL_GPL(tcp_unregister_congestion_control);
-u32 tcp_ca_get_key_by_name(const char *name)
+u32 tcp_ca_get_key_by_name(const char *name, bool *ecn_ca)
{
const struct tcp_congestion_ops *ca;
- u32 key;
+ u32 key = TCP_CA_UNSPEC;
might_sleep();
rcu_read_lock();
ca = __tcp_ca_find_autoload(name);
- key = ca ? ca->key : TCP_CA_UNSPEC;
+ if (ca) {
+ key = ca->key;
+ *ecn_ca = ca->flags & TCP_CONG_NEEDS_ECN;
+ }
rcu_read_unlock();
return key;
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