sparse: Add support for DPDK.

This allows netdev-dpdk.c to compile cleanly with sparse.

Signed-off-by: Ben Pfaff <blp@ovn.org>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/include/sparse/xmmintrin.h b/include/sparse/xmmintrin.h
new file mode 100644
index 000000000..5d311b911
--- /dev/null
+++ b/include/sparse/xmmintrin.h
@@ -0,0 +1,24 @@
+/* Copyright (c) 2015 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CHECKER__
+#error "Use this header only with sparse.  It is not a correct implementation."
+#endif
+
+/* sparse doesn't know about this builtin function yet. */
+#define __builtin_ia32_pause() (void) 0
+
+/* Get actual <xmmintrin.h> definitions for us to annotate and build on. */
+#include_next <xmmintrin.h>