SOCK_TYPE_MASK     42 arch/mips/include/asm/socket.h #define SOCK_TYPE_MASK 0xf
SOCK_TYPE_MASK     72 include/linux/net.h #define SOCK_TYPE_MASK 0xf
SOCK_TYPE_MASK     18 tools/perf/trace/beauty/socket_type.c #define SOCK_TYPE_MASK 0xf