VALID_OPEN_FLAGS
(VALID_OPEN_FLAGS & ~(O_NONBLOCK | O_NDELAY)) |
.flags = flags & VALID_OPEN_FLAGS,
BUILD_BUG_ON_MSG(upper_32_bits(VALID_OPEN_FLAGS),
BUILD_BUG_ON_MSG(OPENAT2_REGULAR & VALID_OPEN_FLAGS,
#define VALID_OPENAT2_FLAGS (VALID_OPEN_FLAGS | OPENAT2_REGULAR)