Defined in 6 files as a union:
- sys/amd64/amd64/in_cksum.c, line 87 (as a union)
- sys/arm/arm/in_cksum.c, line 79 (as a union)
- sys/arm64/arm64/in_cksum.c, line 85 (as a union)
- sys/i386/i386/in_cksum.c, line 93 (as a union)
- sys/mips/mips/in_cksum.c, line 93 (as a union)
- sys/powerpc/powerpc/in_cksum.c, line 95 (as a union)