diff --git a/include/linux/bpf_compiler_types.h b/include/linux/bpf_compiler_types.h new file mode 100644 index 000000000000..5c9e71acfdac --- /dev/null +++ b/include/linux/bpf_compiler_types.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LINUX_BPF_COMPILER_TYPES_H +#define __LINUX_BPF_COMPILER_TYPES_H + +#include + +/* + * Qualifiers for the BPF verifier rather than address spaces: __arena marks a + * pointer into a BPF arena, __nullable a pointer that may be NULL. They reach + * BPF programs as BTF type tags on the members of kernel structs shared with + * them; to kernel code and to sparse the pointers are ordinary. + */ +#ifdef __CHECKER__ +# define __arena +# define __nullable +#else +# define __arena BTF_TYPE_TAG(arena) +# define __nullable BTF_TYPE_TAG(nullable) +#endif + +#endif /* __LINUX_BPF_COMPILER_TYPES_H */