From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Tue, 29 May 2018 14:36:44 +0000 (+0200)
Subject: intel_rdt: fix a bunch of warnings
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=49c6892bbf13cc546f60310f7550b896b5921f61;p=collectd.git

intel_rdt: fix a bunch of warnings

  CC       src/intel_rdt_la-intel_rdt.lo
src/intel_rdt.c: In function ‘rdt_is_core_id_valid’:
src/intel_rdt.c:163:21: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
   for (int i = 0; i < g_rdt->pqos_cpu->num_cores; i++)
                     ^
src/intel_rdt.c:164:17: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
     if (core_id == g_rdt->pqos_cpu->cores[i].lcore)
                 ^~
src/intel_rdt.c: In function ‘rdt_config_cgroups’:
src/intel_rdt.c:208:21: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
   for (int i = 0; i < g_rdt->cap_mon->u.mon->num_events; i++)
                     ^
src/intel_rdt.c: In function ‘rdt_read’:
src/intel_rdt.c:389:21: warning: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare]
   for (int i = 0; i < g_rdt->num_groups; i++) {
                     ^
src/intel_rdt.c: In function ‘rdt_init’:
src/intel_rdt.c:428:21: warning: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare]
   for (int i = 0; i < g_rdt->num_groups; i++) {
                     ^
src/intel_rdt.c: In function ‘rdt_shutdown’:
src/intel_rdt.c:451:21: warning: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare]
   for (int i = 0; i < g_rdt->num_groups; i++) {
                     ^
  CC       src/intel_rdt_la-utils_config_cores.lo
src/utils_config_cores.c: In function ‘check_core_grouping’:
src/utils_config_cores.c:166:23: warning: comparison of integer expressions of different signedness: ‘long int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare]
     if ((end - start) >= out_size) {
                       ^~
  CCLD     intel_rdt.la
---

diff --git a/src/intel_rdt.c b/src/intel_rdt.c
index 684e2b6d..347835c1 100644
--- a/src/intel_rdt.c
+++ b/src/intel_rdt.c
@@ -67,7 +67,7 @@ static void rdt_dump_cgroups(void) {
   DEBUG(RDT_PLUGIN ": Core Groups Dump");
   DEBUG(RDT_PLUGIN ":  groups count: %" PRIsz, g_rdt->num_groups);
 
-  for (int i = 0; i < g_rdt->num_groups; i++) {
+  for (size_t i = 0; i < g_rdt->num_groups; i++) {
     core_group_t *cgroup = g_rdt->cores.cgroups + i;
 
     memset(cores, 0, sizeof(cores));
@@ -158,9 +158,9 @@ static int rdt_default_cgroups(void) {
   return num_cores;
 }
 
-static int rdt_is_core_id_valid(int core_id) {
+static int rdt_is_core_id_valid(unsigned int core_id) {
 
-  for (int i = 0; i < g_rdt->pqos_cpu->num_cores; i++)
+  for (unsigned int i = 0; i < g_rdt->pqos_cpu->num_cores; i++)
     if (core_id == g_rdt->pqos_cpu->cores[i].lcore)
       return 1;
 
@@ -182,9 +182,9 @@ static int rdt_config_cgroups(oconfig_item_t *item) {
   for (size_t group_idx = 0; group_idx < n; group_idx++) {
     core_group_t *cgroup = g_rdt->cores.cgroups + group_idx;
     for (size_t core_idx = 0; core_idx < cgroup->num_cores; core_idx++) {
-      if (!rdt_is_core_id_valid((int)cgroup->cores[core_idx])) {
-        ERROR(RDT_PLUGIN ": Core group '%s' contains invalid core id '%d'",
-              cgroup->desc, (int)cgroup->cores[core_idx]);
+      if (!rdt_is_core_id_valid(cgroup->cores[core_idx])) {
+        ERROR(RDT_PLUGIN ": Core group '%s' contains invalid core id '%u'",
+              cgroup->desc, cgroup->cores[core_idx]);
         rdt_free_cgroups();
         return -EINVAL;
       }
@@ -205,7 +205,7 @@ static int rdt_config_cgroups(oconfig_item_t *item) {
   }
 
   /* Get all available events on this platform */
-  for (int i = 0; i < g_rdt->cap_mon->u.mon->num_events; i++)
+  for (unsigned int i = 0; i < g_rdt->cap_mon->u.mon->num_events; i++)
     events |= g_rdt->cap_mon->u.mon->events[i].type;
 
   events &= ~(PQOS_PERF_EVENT_LLC_MISS);
@@ -386,7 +386,7 @@ static int rdt_read(__attribute__((unused)) user_data_t *ud) {
   rdt_dump_data();
 #endif /* COLLECT_DEBUG */
 
-  for (int i = 0; i < g_rdt->num_groups; i++) {
+  for (size_t i = 0; i < g_rdt->num_groups; i++) {
     core_group_t *cgroup = g_rdt->cores.cgroups + i;
 
     enum pqos_mon_event mbm_events =
@@ -425,7 +425,7 @@ static int rdt_init(void) {
     return ret;
 
   /* Start monitoring */
-  for (int i = 0; i < g_rdt->num_groups; i++) {
+  for (size_t i = 0; i < g_rdt->num_groups; i++) {
     core_group_t *cg = g_rdt->cores.cgroups + i;
 
     ret = pqos_mon_start(cg->num_cores, cg->cores, g_rdt->events[i],
@@ -448,7 +448,7 @@ static int rdt_shutdown(void) {
     return 0;
 
   /* Stop monitoring */
-  for (int i = 0; i < g_rdt->num_groups; i++) {
+  for (size_t i = 0; i < g_rdt->num_groups; i++) {
     pqos_mon_stop(g_rdt->pgroups[i]);
   }
 
diff --git a/src/utils_config_cores.c b/src/utils_config_cores.c
index 085e8abe..94657459 100644
--- a/src/utils_config_cores.c
+++ b/src/utils_config_cores.c
@@ -163,7 +163,7 @@ static int check_core_grouping(char *out, const char *in, size_t out_size,
       ERROR(UTIL_NAME ": Missing closing bracket ] in option %s.", in);
       return -EINVAL;
     }
-    if ((end - start) >= out_size) {
+    if ((size_t)(end - start) >= out_size) {
       ERROR(UTIL_NAME ": Out buffer is too small.");
       return -EINVAL;
     }
diff --git a/src/utils_config_cores.h b/src/utils_config_cores.h
index e22cbcfe..d45f8480 100644
--- a/src/utils_config_cores.h
+++ b/src/utils_config_cores.h
@@ -36,7 +36,7 @@
 
 struct core_group_s {
   char *desc;
-  unsigned *cores;
+  unsigned int *cores;
   size_t num_cores;
 };
 typedef struct core_group_s core_group_t;