rsmi: handle HWLOC_HIDE_ERRORS

Cannot use the main one because it's not available to plugins.

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>

hwloc/topology-rsmi.c

@@ -15,6 +15,20 @@
 
 #include <rocm_smi.h>
 
+/* duplicated from topology.c because cannot be used by plugins */
+static int hwloc_hide_rsmi_errors(void)
+{
+  static int hide = 0;
+  static int checked = 0;
+  if (!checked) {
+    const char *envvar = getenv("HWLOC_HIDE_ERRORS");
+    if (envvar)
+      hide = atoi(envvar);
+    checked = 1;
+  }
+  return hide;
+}
+
 /*
  * Get the name of the GPU
  *
@@ -29,7 +43,8 @@ static int get_device_name(uint32_t dv_ind, char *device_name, unsigned int size
 
   if (rsmi_rc != RSMI_STATUS_SUCCESS) {
     rsmi_rc = rsmi_status_string(rsmi_rc, &status_string);
-    fprintf(stderr, "RSMI: GPU(%d): Failed to get name: %s\n", dv_ind, status_string);
+    if (!hwloc_hide_rsmi_errors())
+      fprintf(stderr, "RSMI: GPU(%d): Failed to get name: %s\n", dv_ind, status_string);
     return -1;
   }
   return 0;
@@ -48,7 +63,8 @@ static int get_device_pci_info(uint32_t dv_ind, uint64_t *bdfid)
 
   if (rsmi_rc != RSMI_STATUS_SUCCESS) {
     rsmi_rc = rsmi_status_string(rsmi_rc, &status_string);
-    fprintf(stderr, "RSMI: GPU(%d): Failed to get PCI Info: %s\n", dv_ind, status_string);
+    if (!hwloc_hide_rsmi_errors())
+      fprintf(stderr, "RSMI: GPU(%d): Failed to get PCI Info: %s\n", dv_ind, status_string);
     return -1;
   }
   return 0;