Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/include/linux/zalloc.h b/tools/include/linux/zalloc.h
new file mode 100644
index 0000000..81099c8
--- /dev/null
+++ b/tools/include/linux/zalloc.h
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: LGPL-2.1
+#ifndef __TOOLS_LINUX_ZALLOC_H
+#define __TOOLS_LINUX_ZALLOC_H
+
+#include <stddef.h>
+
+void *zalloc(size_t size);
+void __zfree(void **ptr);
+
+#define zfree(ptr) __zfree((void **)(ptr))
+
+#endif // __TOOLS_LINUX_ZALLOC_H