ksmbd: add an error print when maximum IP connections limit is reached

This change introduces an error print using pr_info_ratelimited()
to prevent excessive logging. This message will inform the user that
the limit for maximum IP connections has been hit and what that
current count is, which can be useful for debugging and monitoring
connection limits.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: namjaejeon

fs/smb/server/transport_tcp.c

@@ -266,6 +266,8 @@ static int ksmbd_kthread_fn(void *p)
 				max_ip_conns++;
 #endif
 			if (server_conf.max_ip_connections <= max_ip_conns) {
+				pr_info_ratelimited("Maximum IP connections exceeded (%u/%u)\n",
+						    max_ip_conns, server_conf.max_ip_connections);
 				ret = -EAGAIN;
 				break;
 			}