Defined in 1 files as a prototype:

• sys/netinet/in.h, line 439 (as a prototype)

Defined in 3 files as a function:

• sys/arch/mips/mips/in_cksum.c, line 283 (as a function)
• sys/arch/powerpc/powerpc/in_cksum.c, line 247 (as a function)
• sys/netinet/in4_cksum.c, line 56 (as a function)

Referenced in 8 files:

• sys/dist/pf/net/pf.c, line 5665
• sys/net/ether_sw_offload.c
  • line 261
  • line 310
  • line 336
• sys/netinet/dccp_usrreq.c
  • line 325
  • line 1496
• sys/netinet/in_offload.c
  • line 148
  • line 153
  • line 239
  • line 253
  • line 286
• sys/netinet/tcp_input.c, line 920
• sys/netinet/tcp_syncache.c, line 1314
• sys/netinet/udp_usrreq.c, line 297
• sys/netipsec/ipsec_input.c
  • line 151
  • line 163