diff --git a/mlir/include/mlir/Dialect/Linalg/IR/LinalgStructuredOps.td b/mlir/include/mlir/Dialect/Linalg/IR/LinalgStructuredOps.td
--- a/mlir/include/mlir/Dialect/Linalg/IR/LinalgStructuredOps.td
+++ b/mlir/include/mlir/Dialect/Linalg/IR/LinalgStructuredOps.td
@@ -515,13 +515,7 @@
     llvm::Optional<SmallVector<AffineMap, 8>> referenceIndexingMaps() {
       llvm_unreachable(
         "No such thing as reference indexing maps for a generic op.");
-    }
-
-    llvm::Optional<int> getSymbolSource() {
-      auto ss = symbol_source();
-      return ss.hasValue() ?
-        llvm::Optional<int>(ss.getValue().getLimitedValue()) : llvm::None;
-    }
+     }
   }];
 
   let printer = [{ return ::print(p, *this); }];
diff --git a/mlir/lib/Dialect/Linalg/Transforms/Fusion.cpp b/mlir/lib/Dialect/Linalg/Transforms/Fusion.cpp
--- a/mlir/lib/Dialect/Linalg/Transforms/Fusion.cpp
+++ b/mlir/lib/Dialect/Linalg/Transforms/Fusion.cpp
@@ -526,7 +526,7 @@
                   consumer.iterator_types(),
                   /*doc=*/nullptr,
                   /*library_call=*/nullptr,
-                  /*symbol_source=*/nullptr)
+                  /*symbol_source*/ nullptr)
               .getOperation();
     }