[PATCH net-next v4 2/2] net/rds: log the port a listener actually bound

[Allison Henderson <achender@kernel.org>]

rds_rdma_listen_init_common() reports every listener as being on
RDS_PORT, but only the IPv4 caller binds that port; the IPv6 listener
is bound to RDS_CM_PORT, as rds_rdma_listen_init() explains, and its
debug line has claimed 18634 instead of 16385 since it was added.

Print the port from the address the helper just bound.

Assisted-by: Claude-Code:claude-fable-5
Signed-off-by: Allison Henderson <achender@kernel.org>
---
 net/rds/rdma_transport.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c
index 91ff1dde26af..3f853004c490 100644
--- a/net/rds/rdma_transport.c
+++ b/net/rds/rdma_transport.c
@@ -236,7 +236,10 @@ static int rds_rdma_listen_init_common(rdma_cm_event_handler handler,
 		goto out;
 	}
 
-	rdsdebug("cm %p listening on port %u\n", cm_id, RDS_PORT);
+	rdsdebug("cm %p listening on port %u\n", cm_id,
+		 ntohs(sa->sa_family == AF_INET6 ?
+		       ((struct sockaddr_in6 *)sa)->sin6_port :
+		       ((struct sockaddr_in *)sa)->sin_port));
 
 	*ret_cm_id = cm_id;
 	cm_id = NULL;
-- 
2.25.1