Symbol: GRE_IS_SEQ
drivers/net/ppp/pptp.c
299
ack = GRE_IS_SEQ(header->gre_hd.flags) ? ntohl(header->ack) :
drivers/net/ppp/pptp.c
310
if (!GRE_IS_SEQ(header->gre_hd.flags))
tools/testing/selftests/bpf/progs/bpf_flow.c
207
if (GRE_IS_SEQ(gre->flags))