Symbol: IS_DECOMP_PROT
usr/src/uts/common/io/ppp/spppasyn/spppasyn.c
1958
if (!IS_DECOMP_PROT(state))
usr/src/uts/common/io/ppp/spppcomp/spppcomp.c
1356
if (hlen < (IS_DECOMP_AC(cp) ? 0 : 2) + (IS_DECOMP_PROT(cp) ? 1 : 2)) {