Macros starting with `r' in net

• R_Malloc net/radix.h:114
• ROTATE_BUFFERS net/bpf.c:375
• ROUNDUP net/if.c:140
• RTFREE net/route.h:207
• RTHASHMOD net/route.h:219
• rt_key net/route.h:94
• rt_mask net/route.h:95
• RTTTOPRHZ net/route.h:79