--- a/tools/testing/selftests/vm/mremap_dontunmap.c~tools-testing-selftests-vm-remove-duplicate-headers +++ a/tools/testing/selftests/vm/mremap_dontunmap.c @@ -11,7 +11,6 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <stdlib.h> #include <unistd.h> #include "../kselftest.h"