MPPE_OPT_UNKNOWN   82 drivers/net/ppp/ppp_mppe.h            opts |= MPPE_OPT_UNKNOWN;           \
MPPE_OPT_UNKNOWN   84 drivers/net/ppp/ppp_mppe.h            opts |= MPPE_OPT_UNKNOWN;           \
MPPE_OPT_UNKNOWN   86 drivers/net/ppp/ppp_mppe.h            opts |= MPPE_OPT_UNKNOWN;           \