Macros starting with `d' in bsd/sys

• DATA_SET bsd/sys/linker_set.h:71
• decl_simple_lock_data bsd/sys/lock.h:92
• DIRSIZ bsd/sys/dir.h:84
• DISKPART bsd/sys/disklabel.h:89
• DISKUNIT bsd/sys/disklabel.h:88
• DOMAIN_SET bsd/sys/domain.h:94
• DRVDBG_CODE bsd/sys/kdebug.h:174
• dtom bsd/sys/mbuf.h:100
• DTTOIF bsd/sys/dirent.h:102