fix dy_to_static (#56592)

paddle/phi/infermeta/multiary.cc

@@ -1458,7 +1458,7 @@ void FusedBiasActInferMeta(const MetaTensor& x,
   auto token_num = x_dims[0];
   auto dim = x_dims[1];
 
-  if (!config.is_runtime) {
+  if (config.is_runtime) {
     PADDLE_ENFORCE_GT(
         x_dims[0],
         0,

python/paddle/nn/quant/quantized_linear.py

@@ -109,9 +109,10 @@ def weight_only_linear(
         inputs = {
             'x': [x],
             'weight': [weight],
-            'bias': [bias],
             'weight_scale': [weight_scale],
         }
+        if bias:
+            inputs["bias"] = [bias]
         attrs = {'weight_dtype': weight_dtype}
 
         out = helper.create_variable_for_type_inference(dtype)
@@ -173,9 +174,10 @@ def llm_int8_linear(
         inputs = {
             'x': [x],
             'weight': [weight],
-            'bias': [bias],
             'weight_scale': [weight_scale],
         }
+        if bias:
+            inputs["bias"] = [bias]
         attrs = {'threshold': threshold}
 
         out = helper.create_variable_for_type_inference(dtype)