Defined in 6 files as a union:
- sys/amd64/amd64/in_cksum.c, line 83 (as a union)
- sys/arm/arm/in_cksum.c, line 75 (as a union)
- sys/arm64/arm64/in_cksum.c, line 81 (as a union)
- sys/i386/i386/in_cksum.c, line 89 (as a union)
- sys/mips/mips/in_cksum.c, line 89 (as a union)
- sys/powerpc/powerpc/in_cksum.c, line 91 (as a union)