/* The coverage counters. */
static struct coverage_counter **coverage_counters = NULL;
-static unsigned int n_coverage_counters = 0;
-static unsigned int allocated_coverage_counters = 0;
+static size_t n_coverage_counters = 0;
+static size_t allocated_coverage_counters = 0;
static struct ovs_mutex coverage_mutex = OVS_MUTEX_INITIALIZER;