| #ifndef __NVIF_UNPACK_H__ |
| #define __NVIF_UNPACK_H__ |
| |
| #define nvif_unvers(r,d,s,m) ({ \ |
| void **_data = (d); __u32 *_size = (s); int _ret = (r); \ |
| if (_ret == -ENOSYS && *_size == sizeof(m)) { \ |
| *_data = NULL; \ |
| *_size = _ret = 0; \ |
| } \ |
| _ret; \ |
| }) |
| |
| #define nvif_unpack(r,d,s,m,vl,vh,x) ({ \ |
| void **_data = (d); __u32 *_size = (s); \ |
| int _ret = (r), _vl = (vl), _vh = (vh); \ |
| if (_ret == -ENOSYS && *_size >= sizeof(m) && \ |
| (m).version >= _vl && (m).version <= _vh) { \ |
| *_data = (__u8 *)*_data + sizeof(m); \ |
| *_size = *_size - sizeof(m); \ |
| if (_ret = 0, !(x)) { \ |
| _ret = *_size ? -E2BIG : 0; \ |
| *_data = NULL; \ |
| *_size = 0; \ |
| } \ |
| } \ |
| _ret; \ |
| }) |
| #endif |
