IPV6_FLOWINFO_MASK  246 include/net/ipv6.h #define IPV6_TCLASS_MASK (IPV6_FLOWINFO_MASK & ~IPV6_FLOWLABEL_MASK)
IPV6_FLOWINFO_MASK  747 include/net/ipv6.h 	return *(__be32 *)hdr & IPV6_FLOWINFO_MASK;