--- a/hwy/base.h
+++ b/hwy/base.h
@@ -332,8 +332,7 @@ HWY_DLLEXPORT HWY_NORETURN void HWY_FORMAT(3, 4)
 
 #endif  // HWY_HEADER_ONLY
 
-#define HWY_WARN(format, ...) \
-  ::hwy::Warn(__FILE__, __LINE__, format, ##__VA_ARGS__)
+#define HWY_WARN(format, ...)
 
 #define HWY_ABORT(format, ...) \
   ::hwy::Abort(__FILE__, __LINE__, format, ##__VA_ARGS__)
--- a/hwy/contrib/thread_pool/topology.cc
+++ b/hwy/contrib/thread_pool/topology.cc
@@ -162,7 +162,7 @@ void ForeachBit(size_t num_groups, const GROUP_AFFINITY* affinity,
       size_t lp = Num0BitsBelowLS1Bit_Nonzero64(bits);
       bits &= bits - 1;  // clear LSB
       if (HWY_UNLIKELY(lp >= lps.size())) {
-        Warn(__FILE__, line, "Clamping lp %zu to lps.size() %zu, groups %zu\n",
+        HWY_WARN("Clamping lp %zu to lps.size() %zu, groups %zu\n",
              lp, lps.size(), num_groups);
         lp = lps.size() - 1;
       }