SBD_BOARD_STATUS_CACHED
sbp->sb_flags &= ~SBD_BOARD_STATUS_CACHED;
sbp->sb_flags &= ~SBD_BOARD_STATUS_CACHED;
if (sbp->sb_flags & SBD_BOARD_STATUS_CACHED) {
sbp->sb_flags &= ~SBD_BOARD_STATUS_CACHED;
sbp->sb_flags |= SBD_BOARD_STATUS_CACHED;