Build fix: consumer: unused-but-set-variable warning

clang 15.0.7 produces the following warning, preventing the build of the
project with -Werror:

  consumer/consumer.cpp:2519:15: error: variable 'num_hup' set but not used [-Werror,-Wunused-but-set-variable]
          int num_rdy, num_hup, high_prio, ret, i, err = -1;
                       ^

num_hup is indeed not used, so remove its declaration and its
assignations.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: Iccd8aa7716602d6babd1ed5aa23d06268385480c

diff --git a/src/common/consumer/consumer.cpp b/src/common/consumer/consumer.cpp
index 27b34a39f249071867e49e9df7fb438517bb6ee8..5f3dc4e621ad303a3b605e134182ee8177448877 100644 (file)
--- a/src/common/consumer/consumer.cpp
+++ b/src/common/consumer/consumer.cpp
@@ -2516,7 +2516,7 @@ error_testpoint:
  */
 void *consumer_thread_data_poll(void *data)
 {
-       int num_rdy, num_hup, high_prio, ret, i, err = -1;
+       int num_rdy, high_prio, ret, i, err = -1;
        struct pollfd *pollfd = nullptr;
        /* local view of the streams */
        struct lttng_consumer_stream **local_stream = nullptr, *new_stream = nullptr;
@@ -2549,7 +2549,6 @@ void *consumer_thread_data_poll(void *data)
                health_code_update();
 
                high_prio = 0;
-               num_hup = 0;
 
                /*
                 * the fds set has been updated, we need to update our
@@ -2765,21 +2764,18 @@ void *consumer_thread_data_poll(void *data)
                                if (!local_stream[i]->has_data_left_to_be_read_before_teardown) {
                                        consumer_del_stream(local_stream[i], data_ht);
                                        local_stream[i] = nullptr;
-                                       num_hup++;
                                }
                        } else if (pollfd[i].revents & POLLERR) {
                                ERR("Error returned in polling fd %d.", pollfd[i].fd);
                                if (!local_stream[i]->has_data_left_to_be_read_before_teardown) {
                                        consumer_del_stream(local_stream[i], data_ht);
                                        local_stream[i] = nullptr;
-                                       num_hup++;
                                }
                        } else if (pollfd[i].revents & POLLNVAL) {
                                ERR("Polling fd %d tells fd is not open.", pollfd[i].fd);
                                if (!local_stream[i]->has_data_left_to_be_read_before_teardown) {
                                        consumer_del_stream(local_stream[i], data_ht);
                                        local_stream[i] = nullptr;
-                                       num_hup++;
                                }
                        }
                        if (local_stream[i] != nullptr) {