diff --git a/src/util/u_thread.h b/src/util/u_thread.h
index af44bcfc1bd..917ffead6a5 100644
--- a/src/util/u_thread.h
+++ b/src/util/u_thread.h
@@ -117,39 +117,6 @@ util_pin_thread_to_L3(thrd_t thread, unsigned L3_index, unsigned cores_per_L3)
 #endif
 }
 
-/**
- * Return the index of L3 that the thread is pinned to. If the thread is
- * pinned to multiple L3 caches, return -1.
- *
- * \param thread        thread
- * \param cores_per_L3  number of CPU cores shared by one L3
- */
-static inline int
-util_get_L3_for_pinned_thread(thrd_t thread, unsigned cores_per_L3)
-{
-#if defined(HAVE_PTHREAD_SETAFFINITY)
-   cpu_set_t cpuset;
-
-   if (pthread_getaffinity_np(thread, sizeof(cpuset), &cpuset) == 0) {
-      int L3_index = -1;
-
-      for (unsigned i = 0; i < CPU_SETSIZE; i++) {
-         if (CPU_ISSET(i, &cpuset)) {
-            int x = i / cores_per_L3;
-
-            if (L3_index != x) {
-               if (L3_index == -1)
-                  L3_index = x;
-               else
-                  return -1; /* multiple L3s are set */
-            }
-         }
-      }
-      return L3_index;
-   }
-#endif
-   return -1;
-}
 
 /*
  * Thread statistics.